New Hampshire

Area code 603

Area code 603 covers Manchester, Nashua, Concord, Derry, Dover and more in New Hampshire, in the Eastern time zone. It has been in service since 1947.

WhereNew Hampshire

Time zoneEastern

Exchanges752

Flagged numbers414 complaints

Most reported 603 numbers

(603) 923-4924CautionRobocall / recorded message5 complaints (603) 310-6017CautionRobocall / recorded message3 complaints (603) 713-4398CautionTelemarketer / sales3 complaints (603) 210-4281CautionScam or spam text3 complaintsPolitical

Carriers in 603

Consolidated Comm of No. New England246 41%
Bell Atlantic Mobile74 12%
T-Mobile60 10%
Windstream (PAETEC)58 10%
Verizon Business45 8%
Comcast (Xfinity)40 7%
Lumen (Level 3)37 6%
AT&T Mobility34 6%

Line types

Landline417 55%
VoIP / internet phone213 28%
Wireless (cell phone)122 16%

Counted over the exchanges, from the carrier each was assigned to.

Cities in area code 603

ManchesterNashuaConcordDerryDoverPortsmouthMerrimackSalem

Every 603 exchange

The first six digits of a number. Each one with 3 or more flagged numbers has its own page: who it was assigned to and the numbers in it.

Exchange	City	Carrier	Type	Flagged
603-200	Newmarket	Comcast (Xfinity)	VoIP	0
603-202	Concord	T-Mobile	Wireless	0
603-203	Manchester	AT&T Mobility	Wireless	0
603-204	Nashua	UScellular	Wireless	0
603-205	Portsmouth	T-Mobile	Wireless	0
603-206	Manchester	Windstream (PAETEC)	VoIP	0
603-207	Derry	Onvoy (Sinch)	VoIP	0
603-208	Lyme	T-Mobile	Wireless	0
603-209	Keene	UScellular	Wireless	0
603-210	Suncook	Comcast (Xfinity)	VoIP	1
603-212	Salem	Consolidated Comm of No. New...	Landline	0
603-213	Milford	Comcast (Xfinity)	VoIP	0
603-214	Errol	Freedom Ring Communications	Landline	0
603-215	Berlin	Freedom Ring Communications	Landline	0
603-216	Derry	Comcast (Xfinity)	VoIP	0
603-217	Bristol	Bell Atlantic Mobile	Landline	0
603-218	Manchester	Windstream (PAETEC)	VoIP	0
603-219	Concord	T-Mobile	Wireless	0
603-221	Nashua	Consolidated Comm of No. New...	Landline	0
603-222	Manchester	Consolidated Comm of No. New...	Landline	0
603-223	Concord	Consolidated Comm of No. New...	Landline	0
603-224	Concord	Consolidated Comm of No. New...	Landline	0
603-225	Concord	Consolidated Comm of No. New...	Landline	0
603-226	Concord	Consolidated Comm of No. New...	Landline	0
603-227	Concord	Consolidated Comm of No. New...	Landline	0
603-228	Concord	Consolidated Comm of No. New...	Landline	0
603-229	Concord	Consolidated Comm of No. New...	Landline	0
603-230	Concord	Consolidated Comm of No. New...	Landline	0
603-231	Derry	T-Mobile	Wireless	0
603-232	Manchester	Comcast (Xfinity)	VoIP	0
603-233	Nashua	T-Mobile	Wireless	0
603-234	Derry	T-Mobile	Wireless	0
603-235	Derry	T-Mobile	Wireless	0
603-236	Campton	Consolidated Comm of No. New...	Landline	0
603-237	Colebrook	Consolidated Comm of No. New...	Landline	0
603-238	Plymouth	Windstream (PAETEC)	VoIP	0
603-239	Winchester	Consolidated Comm of No. New...	Landline	0
603-240	Manchester	Consolidated Comm of No. New...	Landline	0
603-241	Dover	AT&T Mobility	Wireless	0
603-242	Troy	Consolidated Comm of No. New...	Landline	0
603-243		Charter IP Enabled Services	Landline	0
603-244	Raymond	Comcast (Xfinity)	VoIP	0
603-245	Portsmouth	Consolidated Comm of No. New...	Landline	0
603-246		Consolidated Comm of No. New...	Landline	0
603-247	Derry	AT&T Mobility	Wireless	0
603-248	Dover	Consolidated Comm of No. New...	Landline	0
603-249	Milford	Consolidated Comm of No. New...	Landline	0
603-250	Center Harbor	Freedom Ring Communications	Landline	0
603-251	Charlestown	Windstream (PAETEC)	VoIP	0
603-252	W Lebanon	UScellular	Wireless	0
603-253	Center Harbor	Consolidated Comm of No. New...	Landline	0
603-254	Plymouth	UScellular	Wireless	0
603-255	Manchester	Csc Wireless	Wireless	0
603-256		Consolidated Comm of No. New...	Landline	0
603-257	Plaistow	Freedom Ring Communications	Landline	0
603-258	Hollis	T-Mobile (Metro)	Wireless	0
603-259	Littleton	Lumen (Level 3)	VoIP	0
603-260	Derry	Comcast (Xfinity)	VoIP	0
603-261	Merrimack	T-Mobile	Wireless	0
603-262	Merrimack	Consolidated Comm of No. New...	Landline	0
603-263	Manchester	Peerless Network	VoIP	0
603-264	Manchester	T-Mobile	Wireless	0
603-265	New Boston	T-Mobile	Wireless	0
603-266	Tilton	Consolidated Comm of No. New...	Landline	0
603-267	Belmont	Consolidated Comm of No. New...	Landline	0
603-268	Suncook	Consolidated Comm of No. New...	Landline	0
603-269		Union Tel	Landline	0
603-270	Suncook	Verizon Business	VoIP	0
603-271	Concord	Consolidated Comm of No. New...	Landline	0
603-272	Piermont	Consolidated Comm of No. New...	Landline	0
603-273	Laconia	Verizon Business	VoIP	0
603-274	South Hampton	Verizon Business	VoIP	0
603-275	Derry	T-Mobile	Wireless	0
603-276	W Lebanon	Bell Atlantic Mobile	Landline	0
603-277	Hanover	Comcast (Xfinity)	VoIP	0
603-278	Bretton Wd	Bretton Woods Tel	Landline	0
603-279	Meredith	Consolidated Comm of No. New...	Landline	0
603-280	Barrington	Lumen (Level 3)	VoIP	0
603-281	Nashua	Consolidated Comm of No. New...	Landline	0
603-282	Canaan	Verizon Business	VoIP	0
603-283	Keene	Windstream (PAETEC)	VoIP	0
603-284		Consolidated Comm of No. New...	Landline	0
603-285	Dover	Verizon Business	VoIP	0
603-286	Tilton	Consolidated Comm of No. New...	Landline	0
603-287	Claremont	Lumen (Level 3)	VoIP	0
603-288	Nashua	Vonage	VoIP	0
603-289	Manchester	AT&T Mobility	Wireless	0
603-290	Concord	T-Mobile	Wireless	0
603-291	Greenville	Comcast (Xfinity)	VoIP	0
603-292	Newmarket	Comcast (Xfinity)	VoIP	0
603-293	Laconia	Consolidated Comm of No. New...	Landline	0
603-294	Portsmouth	Lumen (Level 3)	VoIP	0
603-295	Durham	Windstream (PAETEC)	VoIP	0
603-296	Manchester	Windstream (PAETEC)	VoIP	0
603-297		Freedom Ring Communications	Landline	0
603-298	W Lebanon	Consolidated Comm of No. New...	Landline	0
603-299	Bartlett	AT&T Mobility	Wireless	0
603-300	Chester	T-Mobile (Metro)	Wireless	0
603-301		Lumen (Level 3)	VoIP	0
603-302	Manchester	Consolidated Comm of No. New...	Landline	0
603-303	Raymond	Bell Atlantic Mobile	Landline	0
603-304	Enfield	T-Mobile	Wireless	0
603-305	Nashua	Bell Atlantic Mobile	Landline	0
603-306	Lebanon	Freedom Ring Communications	Landline	0
603-307	No Conway	Bell Atlantic Mobile	Landline	0
603-308	Hanover	Consolidated Comm of No. New...	Landline	0
603-309	Newport	Bell Atlantic Mobile	Landline	0
603-310	Bedford	Windstream (PAETEC)	VoIP	1
603-312	Dover	Bell Atlantic Mobile	Landline	0
603-313	Keene	UScellular	Wireless	0
603-314	Manchester	Windstream (PAETEC)	VoIP	0
603-315	Manchester	Bell Atlantic Mobile	Landline	0
603-316	Milford	Bell Atlantic Mobile	Landline	0
603-317	Milan	Verizon Business	VoIP	0
603-318	Nashua	Bell Atlantic Mobile	Landline	0
603-319	Portsmouth	Windstream (PAETEC)	VoIP	0
603-320	Nashua	AT&T Mobility	Wireless	0
603-321	Nashua	Bell Atlantic Mobile	Landline	0
603-322	W Lebanon	AT&T Mobility	Wireless	0
603-323	Tamworth	Consolidated Comm of No. New...	Landline	0
603-324	Nashua	Verizon Business	VoIP	0
603-325	New Boston	Verizon Business	VoIP	0
603-326	Berlin	Lumen (Level 3)	VoIP	0
603-327	Salem	Windstream (PAETEC)	VoIP	0
603-328	Salem	Windstream (PAETEC)	VoIP	0
603-329	Hampstead	Consolidated Comm of No. New...	Landline	0
603-330	Rochester	Consolidated Comm of No. New...	Landline	0
603-331	Colebrook	Lumen (Level 3)	VoIP	0
603-332	Rochester	Consolidated Comm of No. New...	Landline	0
603-333	Concord	Peerless Network	VoIP	0
603-334	Portsmouth	Consolidated Comm of No. New...	Landline	0
603-335	Rochester	Consolidated Comm of No. New...	Landline	0
603-336	Hinsdale	Consolidated Comm of No. New...	Landline	0
603-337	Rochester	Consolidated Comm of No. New...	Landline	0
603-338	Keene	Verizon Business	VoIP	0
603-339	Derry	AT&T Mobility	Wireless	0
603-340	Suncook	Bell Atlantic Mobile	Landline	0
603-341	Merrimack	T-Mobile	Wireless	0
603-342	Berlin	Consolidated Comm of No. New...	Landline	0
603-343	Dover	Comcast (Xfinity)	VoIP	0
603-344	Suncook	T-Mobile	Wireless	0
603-345	Merrimack	T-Mobile	Wireless	0
603-346	Plymouth	Hd Carrier	Landline	0
603-347	Kingston	Comcast (Xfinity)	VoIP	0
603-348		T-Mobile	Wireless	0
603-349	W Lebanon	T-Mobile	Wireless	0
603-350	Milton	Verizon Business	VoIP	0
603-351	Goffstown	Verizon Business	VoIP	0
603-352	Keene	Consolidated Comm of No. New...	Landline	0
603-353	Orford	Consolidated Comm of No. New...	Landline	0
603-354	Keene	Consolidated Comm of No. New...	Landline	0
603-355	Keene	Consolidated Comm of No. New...	Landline	0
603-356	No Conway	Consolidated Comm of No. New...	Landline	0
603-357	Keene	Fidium Enterprise Services	Landline	0
603-358	Keene	Consolidated Comm of No. New...	Landline	0
603-359	Lebanon	Bell Atlantic Mobile	Landline	0
603-360	Orford	Topsham Communications	Landline	0
603-361	Manchester	Bell Atlantic Mobile	Landline	0
603-362	Hampstead	Consolidated Comm of No. New...	Landline	0
603-363	Spofford	Consolidated Comm of No. New...	Landline	0
603-364		Union Tel	Landline	0
603-365	Merrimack	T-Mobile	Wireless	0
603-366	Laconia	Consolidated Comm of No. New...	Landline	0
603-367	Madison	Consolidated Comm of No. New...	Landline	0
603-368	Portsmouth	AT&T	VoIP	0
603-369	Concord	Lumen (Level 3)	VoIP	0
603-370	Candia	Bell Atlantic Mobile	Landline	0
603-371	Peterborough	Windstream (PAETEC)	VoIP	0
603-372	Claremont	Freedom Ring Communications	Landline	0
603-373	Portsmouth	Windstream (PAETEC)	VoIP	0
603-374	Bartlett	Consolidated Comm of No. New...	Landline	0
603-375	Ashland	Twc IP Enabled Services	Landline	0
603-376	Dover	American Messaging Services	Landline	0
603-377	Merrimack	T-Mobile	Wireless	0
603-378	Plaistow	Consolidated Comm of No. New...	Landline	0
603-379	Rye	Lumen (Level 3)	VoIP	0
603-380	Portsmouth	AT&T Mobility	Wireless	0
603-381	W Lebanon	T-Mobile	Wireless	0
603-382	Plaistow	Consolidated Comm of No. New...	Landline	0
603-383	Jackson	Consolidated Comm of No. New...	Landline	0
603-384	Goffstown	Comcast (Xfinity)	VoIP	0
603-385	Manchester	Consolidated Comm of No. New...	Landline	0
603-386	Salem	Windstream (PAETEC)	VoIP	0
603-387	Laconia	Bell Atlantic Mobile	Landline	0
603-388	Colebrook	Freedom Ring Communications	Landline	0
603-389	Durham	Windstream (PAETEC)	VoIP	0
603-390	Jefferson	Verizon Business	VoIP	0
603-391	Manchester	AT&T	VoIP	0
603-392	Winchester	Comcast (Xfinity)	VoIP	0
603-393	Laconia	T-Mobile	Wireless	0
603-394	South Hampton	Consolidated Comm of No. New...	Landline	0
603-395	Exeter	Verizon Business	VoIP	0
603-396	Merrimack	T-Mobile	Wireless	0
603-397	Durham	Comcast (Xfinity)	VoIP	0
603-398	W Lebanon	T-Mobile	Wireless	0
603-399	Westmoreland	Consolidated Comm of No. New...	Landline	0
603-400	Hollis	Charter IP Enabled Services	Landline	0
603-401	Salem	Bell Atlantic Mobile	Landline	0
603-402	Nashua	Bell Atlantic Mobile	Landline	0
603-403	Rochester	Comcast (Xfinity)	VoIP	0
603-404	Derry	Bell Atlantic Mobile	Landline	0
603-405	Somersworth	AT&T	VoIP	0
603-406	Concord	T-Mobile	Wireless	0
603-407	Belmont	Windstream (PAETEC)	VoIP	0
603-408	Berlin	AT&T Mobility	Wireless	0
603-409	Laconia	AT&T Mobility	Wireless	0
603-410	Concord	Windstream (PAETEC)	VoIP	0
603-412	Plymouth	T-Mobile	Wireless	0
603-413	Manchester	Windstream (PAETEC)	VoIP	0
603-414	Sunapee	Tds Metrocom	Landline	0
603-415	Concord	Freedom Ring Communications	Landline	0
603-416	Raymond	T-Mobile	Wireless	0
603-417	Nashua	T-Mobile	Wireless	0
603-418	Exeter	Windstream (PAETEC)	VoIP	0
603-419	Suncook	T-Mobile	Wireless	0
603-420	Merrimack	Verizon Business	VoIP	0
603-421	Derry	Consolidated Comm of No. New...	Landline	0
603-422	Portsmouth	Consolidated Comm of No. New...	Landline	0
603-423	Merrimack	Consolidated Comm of No. New...	Landline	0
603-424	Merrimack	Consolidated Comm of No. New...	Landline	0
603-425	Derry	Consolidated Comm of No. New...	Landline	0
603-426	Derry	Consolidated Comm of No. New...	Landline	0
603-427	Portsmouth	Consolidated Comm of No. New...	Landline	0
603-428	Henniker	Contoocook Valley	Landline	0
603-429	Merrimack	Consolidated Comm of No. New...	Landline	0
603-430	Portsmouth	Consolidated Comm of No. New...	Landline	0
603-431	Portsmouth	Consolidated Comm of No. New...	Landline	0
603-432	Derry	Consolidated Comm of No. New...	Landline	0
603-433	Portsmouth	Consolidated Comm of No. New...	Landline	0
603-434	Derry	Consolidated Comm of No. New...	Landline	0
603-435	Pittsfield	Consolidated Comm of No. New...	Landline	0
603-436	Portsmouth	Consolidated Comm of No. New...	Landline	0
603-437	Derry	Consolidated Comm of No. New...	Landline	0
603-438	Nashua	T-Mobile	Wireless	0
603-439	Keene	Windstream (PAETEC)	VoIP	0
603-440	Merrimack	Consolidated Comm of No. New...	Landline	0
603-441	Rochester	Comcast (Xfinity)	VoIP	0
603-442	Lebanon	Consolidated Comm of No. New...	Landline	0
603-443	Lebanon	Consolidated Comm of No. New...	Landline	0
603-444	Littleton	Consolidated Comm of No. New...	Landline	0
603-445	No Walpole	Consolidated Comm of No. New...	Landline	0
603-446	Marlow	Consolidated Comm of No. New...	Landline	0
603-447	Conway	Consolidated Comm of No. New...	Landline	0
603-448	Lebanon	Consolidated Comm of No. New...	Landline	0
603-449	Milan	Consolidated Comm of No. New...	Landline	0
603-450	Concord	T-Mobile	Wireless	0
603-451	Concord	AT&T Mobility	Wireless	0
603-452	Conway	Freedom Ring Communications	Landline	0
603-453	Hampstead	AT&T	Landline	0
603-454	Sunapee	UScellular	Wireless	0
603-455	Laconia	UScellular	Wireless	0
603-456	Warner	Merrimack County Tel	Landline	0
603-457	Dover	Idt America	Landline	0
603-458	Salem	Comcast (Xfinity)	VoIP	0
603-459	Nashua	Windstream (PAETEC)	VoIP	0
603-460	Deerfield	Verizon Business	VoIP	0
603-461	Merrimack	T-Mobile	Wireless	0
603-462	Deerfield	Freedom Ring Communications	Landline	0
603-463	Deerfield	Consolidated Comm of No. New...	Landline	0
603-464	Hillsborough	Contoocook Valley	Landline	0
603-465	Hollis	Hollis Telephone Company	Landline	0
603-466	Gorham	Consolidated Comm of No. New...	Landline	0
603-467	Manchester	Wavenation	Landline	0
603-468	Seabrook	Freedom Ring Communications	Landline	0
603-469	Meriden	Kearsarge Tel	Landline	0
603-470	Concord	T-Mobile	Wireless	0
603-471	Bedford	Consolidated Comm of No. New...	Landline	0
603-472	Bedford	Consolidated Comm of No. New...	Landline	0
603-473	Milton	Consolidated Comm of No. New...	Landline	0
603-474	Seabrook	Consolidated Comm of No. New...	Landline	0
603-475	Salem	Bell Atlantic Mobile	Landline	0
603-476		Consolidated Comm of No. New...	Landline	0
603-477	Claremont	UScellular	Wireless	0
603-478		Granite State Tel	Landline	0
603-479	Derry	AT&T Mobility	Wireless	0
603-480	Manchester	Bandwidth	VoIP	0
603-481	Plymouth	Bell Atlantic Mobile	Landline	0
603-482	Errol	Consolidated Comm of No. New...	Landline	0
603-483	Candia	Consolidated Comm of No. New...	Landline	0
603-484	Nashua	Bell Atlantic Mobile	Landline	0
603-485	Suncook	Consolidated Comm of No. New...	Landline	0
603-486	Manchester	UScellular	Wireless	0
603-487	New Boston	Consolidated Comm of No. New...	Landline	0
603-488	Bedford	Comcast (Xfinity)	VoIP	0
603-489	Hampstead	Comcast (Xfinity)	VoIP	0
603-490	Derry	Bell Atlantic Mobile	Landline	0
603-491	Concord	Bell Atlantic Mobile	Landline	0
603-492	Manchester	Consolidated Comm of No. New...	Landline	0
603-493	Merrimack	Bell Atlantic Mobile	Landline	0
603-494	Merrimack	Bell Atlantic Mobile	Landline	0
603-495	Washington	Granite State Tel	Landline	0
603-496	Concord	Bell Atlantic Mobile	Landline	0
603-497	Goffstown	Consolidated Comm of No. New...	Landline	0
603-498	Portsmouth	Bell Atlantic Mobile	Landline	0
603-499	Keene	Lumen (Level 3)	VoIP	0
603-500	Tilton	Fractel	VoIP	0
603-501	Portsmouth	Windstream (PAETEC)	VoIP	0
603-502	Portsmouth	AT&T Mobility	Wireless	0
603-503	Lancaster	Verizon Business	VoIP	0
603-504	Claremont	T-Mobile	Wireless	0
603-505	Derry	Bell Atlantic Mobile	Landline	0
603-506	Manchester	AT&T Mobility	Wireless	0
603-507	Rochester	AT&T Mobility	Wireless	0
603-508	Pelham	Bell Atlantic Mobile	Landline	0
603-509	Rochester	Windstream (PAETEC)	VoIP	0
603-510	Meriden	Comcast (Xfinity)	VoIP	0
603-512	Manchester	T-Mobile	Wireless	0
603-513	Concord	Bell Atlantic Mobile	Landline	0
603-514	Nashua	Bell Atlantic Mobile	Landline	0
603-515	Wolfeboro	Consolidated Comm of No. New...	Landline	0
603-516	Dover	Freedom Ring Communications	Landline	0
603-517	Merrimack	American Messaging Services	Landline	0
603-518	Manchester	AT&T	Landline	0
603-519	Exeter	Bell Atlantic Mobile	Landline	0
603-520	Laconia	Bell Atlantic Mobile	Landline	0
603-521	Nashua	AT&T	Landline	0
603-522	Sanbornvl	Consolidated Comm of No. New...	Landline	0
603-523	Canaan	Consolidated Comm of No. New...	Landline	0
603-524	Laconia	Consolidated Comm of No. New...	Landline	0
603-525	Hancock	Consolidated Comm of No. New...	Landline	0
603-526	New London	Kearsarge Tel	Landline	0
603-527	Laconia	Consolidated Comm of No. New...	Landline	0
603-528	Laconia	Consolidated Comm of No. New...	Landline	0
603-529	Weare	Granite State Tel	Landline	0
603-530	Bristol	Bell Atlantic Mobile	Landline	0
603-531	Portsmouth	AT&T Mobility	Wireless	0
603-532	Jaffrey	Consolidated Comm of No. New...	Landline	0
603-533	Merrimack	UScellular	Wireless	0
603-534	Dover	Bell Atlantic Mobile	Landline	0
603-535	Plymouth	Windstream (PAETEC)	VoIP	0
603-536	Plymouth	Consolidated Comm of No. New...	Landline	0
603-537	Derry	Consolidated Comm of No. New...	Landline	0
603-538	Pittsburg	Consolidated Comm of No. New...	Landline	0
603-539		Consolidated Comm of No. New...	Landline	0
603-540	Manchester	Bell Atlantic Mobile	Landline	0
603-541	Manchester	Fidium Enterprise Services	Landline	0
603-542	Claremont	Consolidated Comm of No. New...	Landline	0
603-543	Claremont	Consolidated Comm of No. New...	Landline	0
603-544	Melvin Vlg	Contoocook Valley	Landline	0
603-545	Concord	Windstream (PAETEC)	VoIP	0
603-546	Nashua	Windstream (PAETEC)	VoIP	0
603-547	Greenfield	Consolidated Comm of No. New...	Landline	0
603-548	Derry	Bell Atlantic Mobile	Landline	0
603-549	Derry	Consolidated Comm of No. New...	Landline	0
603-550	Dover	Telnyx	VoIP	0
603-551	Manchester	Consolidated Comm of No. New...	Landline	0
603-552	Derry	Verizon Business	VoIP	0
603-553	Derry	AT&T Mobility	Wireless	0
603-554	Milford	UScellular	Wireless	0
603-556	Laconia	Lumen (Level 3)	VoIP	0
603-557	Nashua	T-Mobile	Wireless	0
603-558	Claremont	Bell Atlantic Mobile	Landline	0
603-559	Portsmouth	Consolidated Comm of No. New...	Landline	0
603-560	Salem	AT&T Mobility	Wireless	0
603-561	Nashua	Consolidated Comm of No. New...	Landline	0
603-562	Peterborough	UScellular	Wireless	0
603-563	Dublin	Consolidated Comm of No. New...	Landline	0
603-564	Manchester	Consolidated Comm of No. New...	Landline	0
603-565	Penacook	Lumen (Level 3)	VoIP	0
603-566	Nashua	Bell Atlantic Mobile	Landline	0
603-567	Peterborough	Lumen (Level 3)	VoIP	0
603-568	Concord	Bell Atlantic Mobile	Landline	0
603-569	Wolfeboro	Consolidated Comm of No. New...	Landline	0
603-570	Portsmouth	AT&T	VoIP	0
603-571	Derry	AT&T Mobility	Wireless	0
603-573	Concord	Verizon Business	VoIP	0
603-574	Alstead	Lumen (Level 3)	VoIP	0
603-575	Littleton	Verizon Business	VoIP	0
603-576	Orford	Lumen (Level 3)	VoIP	0
603-577	Nashua	Consolidated Comm of No. New...	Landline	0
603-578	Nashua	Consolidated Comm of No. New...	Landline	0
603-579	Nashua	Consolidated Comm of No. New...	Landline	0
603-580	Exeter	Comcast (Xfinity)	VoIP	0
603-581	Laconia	Windstream (PAETEC)	VoIP	0
603-582	Merrimack	T-Mobile	Wireless	0
603-583	Exeter	Lumen (Level 3)	VoIP	0
603-584	Concord	T-Mobile	Wireless	0
603-585	Fitzwilliam	Consolidated Comm of No. New...	Landline	0
603-586	Jefferson	Consolidated Comm of No. New...	Landline	0
603-587	Candia	Verizon Business	VoIP	0
603-588	Antrim	Contoocook Valley	Landline	0
603-589	Nashua	Windstream (PAETEC)	VoIP	0
603-590	Durham	Freedom Ring Communications	Landline	0
603-591	Manchester	T-Mobile	Wireless	0
603-592	Spofford	Verizon Business	VoIP	0
603-593	Jaffrey	Windstream (PAETEC)	VoIP	0
603-594	Nashua	Consolidated Comm of No. New...	Landline	0
603-595	Nashua	Consolidated Comm of No. New...	Landline	0
603-596	Nashua	Consolidated Comm of No. New...	Landline	0
603-597	Lyme	Verizon Business	VoIP	0
603-598	Nashua	Consolidated Comm of No. New...	Landline	0
603-599	Nashua	Consolidated Comm of No. New...	Landline	0
603-600	Manchester	Commio	VoIP	0
603-601	Hampton	Windstream (PAETEC)	VoIP	0
603-602	Rochester	AT&T	VoIP	0
603-604	Rye	Consolidated Comm of No. New...	Landline	0
603-605	Dover	Peerless Network	VoIP	0
603-606	Manchester	Onvoy (Sinch)	VoIP	0
603-607		Nuso	Landline	0
603-608	Northwood	T-Mobile (Metro)	Wireless	0
603-609	Dover	AT&T Mobility	Wireless	0
603-610	Portsmouth	Windstream (PAETEC)	VoIP	0
603-612	Plaistow	Windstream (PAETEC)	VoIP	0
603-613	Colebrook	Verizon Business	VoIP	0
603-614		Lumen (Level 3)	VoIP	0
603-615	Manchester	Consolidated Comm of No. New...	Landline	0
603-616	Littleton	T-Mobile	Wireless	0
603-617	Dover	Windstream (PAETEC)	VoIP	0
603-618	Pike	Lumen (Level 3)	VoIP	0
603-619	Laconia	Comcast (Xfinity)	VoIP	0
603-620	Merrimack	T-Mobile	Wireless	0
603-621	Manchester	Consolidated Comm of No. New...	Landline	0
603-622	Manchester	Consolidated Comm of No. New...	Landline	0
603-623	Manchester	Consolidated Comm of No. New...	Landline	0
603-624	Manchester	Consolidated Comm of No. New...	Landline	0
603-625	Manchester	Consolidated Comm of No. New...	Landline	0
603-626	Manchester	Consolidated Comm of No. New...	Landline	0
603-627	Manchester	Consolidated Comm of No. New...	Landline	0
603-628	Manchester	Consolidated Comm of No. New...	Landline	0
603-629	Manchester	Consolidated Comm of No. New...	Landline	0
603-630	Laconia	Bell Atlantic Mobile	Landline	0
603-631	Lancaster	T-Mobile	Wireless	0
603-632	Enfield	Consolidated Comm of No. New...	Landline	0
603-633	Milford	Bell Atlantic Mobile	Landline	0
603-634	Manchester	Consolidated Comm of No. New...	Landline	0
603-635	Pelham	Consolidated Comm of No. New...	Landline	0
603-636	Groveton	Consolidated Comm of No. New...	Landline	0
603-637	Bedford	Verizon Business	VoIP	0
603-638	Monroe	Consolidated Comm of No. New...	Landline	0
603-639	Manchester	Consolidated Comm of No. New...	Landline	0
603-640	Hanover	Consolidated Comm of No. New...	Landline	0
603-641	Manchester	Consolidated Comm of No. New...	Landline	0
603-642	Kingston	Consolidated Comm of No. New...	Landline	0
603-643	Hanover	Consolidated Comm of No. New...	Landline	0
603-644	Manchester	Consolidated Comm of No. New...	Landline	0
603-645	Manchester	Consolidated Comm of No. New...	Landline	0
603-646	Hanover	Consolidated Comm of No. New...	Landline	0
603-647	Manchester	Consolidated Comm of No. New...	Landline	0
603-648	Salisbury	Kearsarge Tel	Landline	0
603-649	Jaffrey	Comcast (Xfinity)	VoIP	0
603-650	Hanover	Consolidated Comm of No. New...	Landline	0
603-651		T-Mobile	Wireless	0
603-652	Milton	Consolidated Comm of No. New...	Landline	0
603-653	Hanover	Consolidated Comm of No. New...	Landline	0
603-654	Wilton	Wilton Tel	Landline	0
603-655	Manchester	Consolidated Comm of No. New...	Landline	0
603-656	Manchester	Fidium Enterprise Services	Landline	0
603-657	Manchester	Windstream (PAETEC)	VoIP	0
603-658	Exeter	Freedom Ring Communications	Landline	0
603-659	Newmarket	Consolidated Comm of No. New...	Landline	0
603-660	Goffstown	Bell Atlantic Mobile	Landline	0
603-661	Manchester	T-Mobile	Wireless	0
603-662	Conway	UScellular	Wireless	0
603-663	Manchester	Consolidated Comm of No. New...	Landline	0
603-664	Barrington	Consolidated Comm of No. New...	Landline	0
603-665	Manchester	Consolidated Comm of No. New...	Landline	0
603-666	Manchester	Consolidated Comm of No. New...	Landline	0
603-667	Lebanon	Verizon Business	VoIP	0
603-668	Manchester	Consolidated Comm of No. New...	Landline	0
603-669	Manchester	Consolidated Comm of No. New...	Landline	0
603-670	Merrimack	Windstream (PAETEC)	VoIP	0
603-671	Franklin	Verizon Business	VoIP	0
603-672	Milford	Consolidated Comm of No. New...	Landline	0
603-673	Milford	Consolidated Comm of No. New...	Landline	0
603-674	Manchester	T-Mobile	Wireless	0
603-675	Plainfield	Consolidated Comm of No. New...	Landline	0
603-676	Hanover	Freedom Ring Communications	Landline	0
603-677	Meredith	Verizon Business	VoIP	0
603-678	Lebanon	Lumen (Level 3)	VoIP	0
603-679	Epping	Consolidated Comm of No. New...	Landline	0
603-680	Hillsborough	Fidium Enterprise Services	Landline	0
603-681	Salem	Windstream (PAETEC)	VoIP	0
603-682	Manchester	T-Mobile	Wireless	0
603-683	Merrimack	Consolidated Comm of No. New...	Landline	0
603-684	Lancaster	Lumen (Level 3)	VoIP	0
603-685	Salem	Windstream (PAETEC)	VoIP	0
603-686	Exeter	Bell Atlantic Mobile	Landline	0
603-687	Jackson	Freedom Ring Communications	Landline	0
603-688	Concord	Peerless Network	VoIP	0
603-689	Nashua	Windstream (PAETEC)	VoIP	0
603-690	Claremont	Verizon Business	VoIP	0
603-691	Exeter	Commio	VoIP	0
603-692	Somersworth	Consolidated Comm of No. New...	Landline	0
603-693	Epping	Windstream (PAETEC)	VoIP	0
603-694	Chatham	Consolidated Communications of...	Landline	0
603-695	Manchester	Consolidated Comm of No. New...	Landline	0
603-696	Manchester	Onvoy (Sinch)	VoIP	0
603-697	Dover	Comcast (Xfinity)	VoIP	0
603-698	Manchester	Nuso	Landline	0
603-699	Nashua	Nuso	Landline	0
603-701	New Durham	Idt America	Landline	0
603-702	Kingston	Bell Atlantic Mobile	Landline	0
603-703	Manchester	Otel Telekom	Landline	0
603-704	Derry	AT&T	VoIP	0
603-705	Salisbury	Comcast (Xfinity)	VoIP	0
603-706	Raymond	Windstream (PAETEC)	VoIP	0
603-707	Meredith	Bell Atlantic Mobile	Landline	0
603-708	Canterbury	Comcast (Xfinity)	VoIP	0
603-709	Plainfield	Lumen (Level 3)	VoIP	0
603-710	Washington	AT&T Mobility	Wireless	0
603-712	Pike	Verizon Business	VoIP	0
603-713	Nashua	Onvoy (Sinch)	VoIP	1
603-714	Bedford	Bell Atlantic Mobile	Landline	0
603-715	Concord	Comcast (Xfinity)	VoIP	0
603-716	Manchester	Bell Atlantic Mobile	Landline	0
603-717	Concord	Windstream (PAETEC)	VoIP	0
603-718	Nashua	Bell Atlantic Mobile	Landline	0
603-719	Keene	Freedom Ring Communications	Landline	0
603-720	Troy	Twc IP Enabled Services	Landline	0
603-721	Milford	T-Mobile (Metro)	Wireless	0
603-722	Manchester	Bandwidth	VoIP	0
603-723	Berlin	UScellular	Wireless	0
603-724	Concord	Windstream (PAETEC)	VoIP	0
603-725	Tamworth	Lumen (Level 3)	VoIP	0
603-726	Campton	Consolidated Comm of No. New...	Landline	0
603-727	Lebanon	Windstream (PAETEC)	VoIP	0
603-728		Lumen (Level 3)	VoIP	0
603-729	Tilton	Verizon Business	VoIP	0
603-730	No Conway	Verizon Business	VoIP	0
603-731	Concord	Bell Atlantic Mobile	Landline	0
603-732	Milford	Verizon Business	VoIP	0
603-733	No Conway	Lumen (Level 3)	VoIP	0
603-734	Epping	Verizon Business	VoIP	0
603-735	Andover	Kearsarge Tel	Landline	0
603-736	Epsom	Consolidated Comm of No. New...	Landline	0
603-737	Laconia	Freedom Ring Communications	Landline	0
603-738	Concord	AT&T Mobility	Wireless	0
603-739		Verizon Business	VoIP	0
603-740	Dover	Consolidated Comm of No. New...	Landline	0
603-741	New Boston	Lumen (Level 3)	VoIP	0
603-742	Dover	Consolidated Comm of No. New...	Landline	0
603-743	Dover	Consolidated Comm of No. New...	Landline	0
603-744	Bristol	Consolidated Comm of No. New...	Landline	0
603-745		Consolidated Comm of No. New...	Landline	0
603-746		Merrimack County Tel	Landline	0
603-747		Consolidated Comm of No. New...	Landline	0
603-748	Warner	Bell Atlantic Mobile	Landline	0
603-749	Dover	Consolidated Comm of No. New...	Landline	0
603-750	Dover	Fidium Enterprise Services	Landline	0
603-751	Pelham	Verizon Business	VoIP	0
603-752	Berlin	Consolidated Comm of No. New...	Landline	0
603-753	Penacook	Consolidated Comm of No. New...	Landline	0
603-754	Lancaster	Freedom Ring Communications	Landline	0
603-755	Farmington	Consolidated Comm of No. New...	Landline	0
603-756	Walpole	Consolidated Comm of No. New...	Landline	0
603-757	Keene	Windstream (PAETEC)	VoIP	0
603-758	Hampton	Windstream (PAETEC)	VoIP	0
603-759	Nashua	Bell Atlantic Mobile	Landline	0
603-760	Seabrook	AT&T	VoIP	0
603-761	Littleton	Freedom Ring Communications	Landline	0
603-762	Keene	Bell Atlantic Mobile	Landline	0
603-763	Sunapee	Consolidated Comm of No. New...	Landline	0
603-764	Warren	Consolidated Comm of No. New...	Landline	0
603-765	Nashua	T-Mobile	Wireless	0
603-766	Portsmouth	Freedom Ring Communications	Landline	0
603-767	Dover	AT&T Mobility	Wireless	0
603-768	Danbury	Consolidated Comm of No. New...	Landline	0
603-769	Milford	Lumen (Level 3)	VoIP	0
603-770	Exeter	Bell Atlantic Mobile	Landline	0
603-771	Manchester	Consolidated Comm of No. New...	Landline	0
603-772	Exeter	Consolidated Comm of No. New...	Landline	0
603-773	Exeter	Consolidated Comm of No. New...	Landline	0
603-774	Dunbarton	Dunbarton Tel	Landline	0
603-775	Exeter	Consolidated Comm of No. New...	Landline	0
603-776	Barnstead	Union Tel	Landline	0
603-777	Exeter	Consolidated Comm of No. New...	Landline	0
603-778	Exeter	Consolidated Comm of No. New...	Landline	0
603-779	Plymouth	Verizon Business	VoIP	0
603-780	Canaan	Lumen (Level 3)	VoIP	0
603-781	Dover	AT&T Mobility	Wireless	0
603-782	Manchester	Lumen (Level 3)	VoIP	0
603-783	Canterbury	Consolidated Comm of No. New...	Landline	0
603-784	Peterborough	Verizon Business	VoIP	0
603-785	Manchester	AT&T Mobility	Wireless	0
603-786	Rumney	Consolidated Comm of No. New...	Landline	0
603-787		Consolidated Comm of No. New...	Landline	0
603-788	Lancaster	Consolidated Comm of No. New...	Landline	0
603-789	Danbury	Freedom Ring Communications	Landline	0
603-790	W Lebanon	Bell Atlantic Mobile	Landline	0
603-791	Nashua	Consolidated Comm of No. New...	Landline	0
603-792	Manchester	Freedom Ring Communications	Landline	0
603-793	Exeter	T-Mobile (Metro)	Wireless	0
603-794	Laconia	AT&T Mobility	Wireless	0
603-795	Lyme	Consolidated Comm of No. New...	Landline	0
603-796	Boscawen	Kearsarge Tel	Landline	0
603-797	Plaistow	Verizon Business	VoIP	0
603-798	Chichester	Kearsarge Tel	Landline	0
603-799	Manchester	T-Mobile (Metro)	Wireless	0
603-800	Meredith	Fractel	VoIP	0
603-801	Milford	Bell Atlantic Mobile	Landline	0
603-802	Concord	Onvoy (Sinch)	VoIP	0
603-803	Keene	Lumen (CenturyLink)	Landline	0
603-804	Dover	Boost Subscriberco	Landline	0
603-805	Concord	Verizon Business	VoIP	0
603-808	Antrim	Comcast (Xfinity)	VoIP	0
603-809	Nashua	Bell Atlantic Mobile	Landline	0
603-810	Nashua	Telnyx	VoIP	0
603-812	Portsmouth	Bell Atlantic Mobile	Landline	0
603-813		Idt America	Landline	0
603-814	Seabrook	Comcast (Xfinity)	VoIP	0
603-815	Durham	AT&T	VoIP	0
603-816	Nashua	Freedom Ring Communications	Landline	0
603-817	Dover	T-Mobile	Wireless	0
603-818	Derry	T-Mobile	Wireless	0
603-819	Plaistow	Lumen (Level 3)	VoIP	0
603-820	Merrimack	T-Mobile (Metro)	Wireless	0
603-821	Nashua	Windstream (PAETEC)	VoIP	0
603-822	Rochester	Windstream (PAETEC)	VoIP	0
603-823	Franconia	Consolidated Comm of No. New...	Landline	0
603-824	Salem	Verizon Business	VoIP	0
603-825	Manchester	Ton80 Communications	VoIP	0
603-826	Charlestown	Consolidated Comm of No. New...	Landline	0
603-827	Harrisville	Consolidated Comm of No. New...	Landline	0
603-828	Portsmouth	Bell Atlantic Mobile	Landline	0
603-829	Sunapee	Verizon Business	VoIP	0
603-831	Greenfield	Bell Atlantic Mobile	Landline	0
603-832	Laconia	Windstream (PAETEC)	VoIP	0
603-833	Rochester	Bell Atlantic Mobile	Landline	0
603-834	Dover	Windstream (PAETEC)	VoIP	0
603-835	Alstead	Consolidated Comm of No. New...	Landline	0
603-836	Manchester	Comcast (Xfinity)	VoIP	0
603-837	Whitefield	Consolidated Comm of No. New...	Landline	0
603-838	Lisbon	Consolidated Comm of No. New...	Landline	0
603-839	Farmington	Twc IP Enabled Services	Landline	0
603-840	Epsom	Comcast (Xfinity)	VoIP	0
603-841	Somersworth	Comcast (Xfinity)	VoIP	0
603-842	Dover	Windstream (PAETEC)	VoIP	0
603-843	Newport	Freedom Ring Communications	Landline	0
603-845	Derry	Windstream (PAETEC)	VoIP	0
603-846	Twin Mt	Consolidated Comm of No. New...	Landline	0
603-847	Sullivan	Consolidated Comm of No. New...	Landline	0
603-848	Concord	UScellular	Wireless	0
603-850	Lisbon	AT&T Mobility	Wireless	0
603-851	Manchester	Bell Atlantic Mobile	Landline	0
603-852	Keene	T-Mobile	Wireless	0
603-853		Freedom Ring Communications	Landline	0
603-854	Manchester	AT&T Mobility	Wireless	0
603-855	Alton	Idt America	Landline	0
603-856	Concord	Windstream (PAETEC)	VoIP	0
603-857	Suncook	Leap Telecom	Landline	0
603-858	Manchester	T-Mobile	Wireless	0
603-859	New Durham	Union Tel	Landline	0
603-860	Manchester	Bell Atlantic Mobile	Landline	0
603-861	Tamworth	Verizon Business	VoIP	0
603-862	Durham	Windstream (PAETEC)	VoIP	0
603-863	Newport	Consolidated Comm of No. New...	Landline	0
603-864	Nashua	Consolidated Comm of No. New...	Landline	0
603-865	Newport	Consolidated Comm of No. New...	Landline	0
603-866	Dover	T-Mobile	Wireless	0
603-867	Manchester	AT&T Mobility	Wireless	0
603-868	Durham	Consolidated Comm of No. New...	Landline	0
603-869	Bethlehem	Consolidated Comm of No. New...	Landline	0
603-870	Salem	Consolidated Comm of No. New...	Landline	0
603-871	Sanbornvl	Lumen (Level 3)	VoIP	0
603-872		Idt America	Landline	0
603-873	Sunapee	Lumen (Level 3)	VoIP	0
603-874	Monroe	Lumen (Level 3)	VoIP	0
603-875	Alton	Union Tel	Landline	0
603-876	Marlborough	Consolidated Comm of No. New...	Landline	0
603-877	New London	Comcast (Xfinity)	VoIP	0
603-878	Greenville	Consolidated Comm of No. New...	Landline	0
603-879	Nashua	Consolidated Comm of No. New...	Landline	0
603-880	Nashua	Telnyx	VoIP	0
603-881	Nashua	Consolidated Comm of No. New...	Landline	0
603-882	Nashua	Consolidated Comm of No. New...	Landline	0
603-883	Nashua	Consolidated Comm of No. New...	Landline	0
603-884	Nashua	Consolidated Comm of No. New...	Landline	0
603-885	Nashua	Consolidated Comm of No. New...	Landline	0
603-886	Nashua	Consolidated Comm of No. New...	Landline	0
603-887	Chester	Granite State Tel	Landline	0
603-888	Nashua	Consolidated Comm of No. New...	Landline	0
603-889	Nashua	Consolidated Comm of No. New...	Landline	0
603-890	Salem	Consolidated Comm of No. New...	Landline	0
603-891	Nashua	Consolidated Comm of No. New...	Landline	0
603-892	Concord	T-Mobile	Wireless	0
603-893	Salem	Consolidated Comm of No. New...	Landline	0
603-894	Salem	Consolidated Comm of No. New...	Landline	0
603-895	Raymond	Consolidated Comm of No. New...	Landline	0
603-896	Salem	Consolidated Comm of No. New...	Landline	0
603-897	Nashua	Consolidated Comm of No. New...	Landline	0
603-898	Salem	Consolidated Comm of No. New...	Landline	0
603-899	Rindge	Consolidated Comm of No. New...	Landline	0
603-900	Newport	Fractel	VoIP	0
603-901	Conway	Verizon Business	VoIP	0
603-902	Sutton	Comcast (Xfinity)	VoIP	0
603-903	Keene	Bell Atlantic Mobile	Landline	0
603-904	Walpole	Otel Telekom	Landline	0
603-905	Barrington	Otel Telekom	Landline	0
603-906	Barnstead	Idt America	Landline	0
603-910	Hampton	Windstream (PAETEC)	VoIP	0
603-912	Salem	Terra Nova Telecom	Landline	0
603-913	Merrimack	Windstream (PAETEC)	VoIP	0
603-915	Gorham	Bell Atlantic Mobile	Landline	0
603-916	Meredith	T-Mobile	Wireless	0
603-918	Hampton	Bell Atlantic Mobile	Landline	0
603-919	Rochester	Bell Atlantic Mobile	Landline	0
603-921	Nashua	Bell Atlantic Mobile	Landline	0
603-922	No Stratfd	Consolidated Comm of No. New...	Landline	0
603-923	Rochester	Lumen (Level 3)	VoIP	1
603-924	Peterborough	Consolidated Comm of No. New...	Landline	0
603-925	Peterborough	Freedom Ring Communications	Landline	0
603-926	Hampton	Consolidated Comm of No. New...	Landline	0
603-927	Sutton	Merrimack County Tel	Landline	0
603-928	Suncook	Freedom Ring Communications	Landline	0
603-929	Hampton	Consolidated Comm of No. New...	Landline	0
603-930	Nashua	AT&T Mobility	Wireless	0
603-931	Concord	Verizon Business	VoIP	0
603-932	Manchester	Onvoy (Sinch)	VoIP	0
603-933	Greenfield	Bell Atlantic Mobile	Landline	0
603-934	Franklin	Consolidated Comm of No. New...	Landline	0
603-935	Manchester	Comcast (Xfinity)	VoIP	0
603-937	Meredith	Bell Atlantic Mobile	Landline	0
603-938	Bradford	Merrimack County Tel	Landline	0
603-939		Consolidated Communications of...	Landline	0
603-941	Wolfeboro	Verizon Business	VoIP	0
603-942	Northwood	Consolidated Comm of No. New...	Landline	0
603-943	Nashua	T-Mobile	Wireless	0
603-944	South Hampton	T-Mobile (Metro)	Wireless	0
603-945	Manchester	Onvoy (Sinch)	VoIP	0
603-947	Plymouth	Freedom Ring Communications	Landline	0
603-948	Rochester	Idt America	Landline	0
603-951	Milan	Lumen (Level 3)	VoIP	0
603-952	Salem	Lumen (Level 3)	VoIP	0
603-953	Dover	Windstream (PAETEC)	VoIP	0
603-956	Portsmouth	Vonage	VoIP	0
603-957	Portsmouth	AT&T Mobility	Wireless	0
603-960	Campton	Bell Atlantic Mobile	Landline	0
603-961	Chichester	Comcast (Xfinity)	VoIP	0
603-964	Rye	Consolidated Comm of No. New...	Landline	0
603-965	Derry	Windstream (PAETEC)	VoIP	0
603-966	Nashua	T-Mobile	Wireless	0
603-967	Hampton	Lumen (Level 3)	VoIP	0
603-968	Ashland	Consolidated Comm of No. New...	Landline	0
603-969	Portsmouth	T-Mobile	Wireless	0
603-970	Dover	AT&T Mobility	Wireless	0
603-971	Rindge	Freedom Ring Communications	Landline	0
603-973	Rochester	T-Mobile (Metro)	Wireless	0
603-974	Plaistow	Comcast (Xfinity)	VoIP	0
603-975	Boscawen	Comcast (Xfinity)	VoIP	0
603-977	Andover	Comcast (Xfinity)	VoIP	0
603-978	Dover	AT&T Mobility	Wireless	0
603-986	No Conway	Bell Atlantic Mobile	Landline	0
603-988	Portsmouth	T-Mobile	Wireless	0
603-989	Pike	Consolidated Comm of No. New...	Landline	0
603-991	Littleton	Bell Atlantic Mobile	Landline	0
603-992	Danbury	Lumen (Level 3)	VoIP	0
603-994	Rochester	Freedom Ring Communications	Landline	0
603-995	Henniker	T-Mobile	Wireless	0
603-996	Plymouth	T-Mobile (Metro)	Wireless	0
603-997	Hampton	T-Mobile (Metro)	Wireless	0
603-998	Laconia	T-Mobile (Metro)	Wireless	0
603-999	Salem	Fractel	VoIP	0

Area code 603 questions

Where is area code 603?

Area code 603 is in New Hampshire. Its biggest rate centers are Manchester, Nashua, Concord, Derry, Dover.

What time zone is area code 603?

Area code 603 is in the Eastern time zone.

Is a call from area code 603 a scam?

An area code alone can't tell you. Scammers use and spoof numbers in every area code. 4 603 numbers have been flagged on ShadyCall. Look up the full number to see its reports and FTC/FCC complaints.

What carriers use area code 603?

Of its 752 exchanges, the most were assigned to Consolidated Comm of No. New England, Bell Atlantic Mobile, T-Mobile. Numbers can be ported to any carrier, so the exchange shows the original carrier only.