California
Area code 840
Area code 840 covers Pomona, San Bernardino, Arrowhead, Fontana, Chino and more in California, in the Pacific time zone. It has been in service since 2021. It shares its area with 909 (an overlay).
WhereCalifornia
Time zonePacific
Exchanges132
Flagged numbers13 complaints
Most reported 840 numbers
Carriers in 840
Line types
Counted over the exchanges, from the carrier each was assigned to.
Cities in area code 840
PomonaSan BernardinoArrowheadFontanaChinoClaremontOntarioUpland
Every 840 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 |
|---|---|---|---|---|
| 840-200 | Chino | Fractel | VoIP | 0 |
| 840-201 | Fontana | AT&T Mobility | Wireless | 0 |
| 840-202 | Pomona | AT&T Mobility | Wireless | 0 |
| 840-203 | San Bernardino | AT&T Mobility | Wireless | 0 |
| 840-204 | San Bernardino | AT&T Mobility | Wireless | 0 |
| 840-205 | Claremont | Bandwidth | VoIP | 0 |
| 840-206 | Chino | AT&T Mobility | Wireless | 0 |
| 840-207 | Arrowhead | T-Mobile | Wireless | 0 |
| 840-208 | Claremont | Bandwidth | VoIP | 0 |
| 840-209 | Arrowhead | T-Mobile | Wireless | 0 |
| 840-210 | Fontana | T-Mobile | Wireless | 0 |
| 840-212 | Chino | T-Mobile | Wireless | 0 |
| 840-213 | Redlands | T-Mobile | Wireless | 0 |
| 840-214 | Marshall | T-Mobile | Wireless | 0 |
| 840-215 | Highland | T-Mobile | Wireless | 0 |
| 840-216 | Arrowhead | T-Mobile | Wireless | 1 |
| 840-217 | Fontana | T-Mobile | Wireless | 0 |
| 840-218 | Chino | Verizon Wireless | Wireless | 0 |
| 840-219 | Calimesa | T-Mobile | Wireless | 0 |
| 840-220 | Rialto | Bandwidth | VoIP | 0 |
| 840-221 | San Bernardino | Hd Carrier | Landline | 0 |
| 840-222 | San Bernardino | Fractel | VoIP | 0 |
| 840-223 | Calimesa | Bandwidth | VoIP | 0 |
| 840-224 | San Bernardino | AT&T Mobility | Wireless | 0 |
| 840-225 | Pomona | AT&T Mobility | Wireless | 0 |
| 840-226 | Pomona | Onvoy (Sinch) | VoIP | 0 |
| 840-227 | San Bernardino | Verizon Wireless | Wireless | 0 |
| 840-228 | Colton | Verizon Wireless | Wireless | 0 |
| 840-229 | Claremont | Verizon Wireless | Wireless | 0 |
| 840-230 | Pomona | Boost Subscriberco | Landline | 0 |
| 840-231 | Pomona | T-Mobile | Wireless | 0 |
| 840-232 | Fontana | T-Mobile | Wireless | 0 |
| 840-233 | Arrowhead | T-Mobile | Wireless | 0 |
| 840-234 | Arrowhead | Fractel | VoIP | 0 |
| 840-235 | Colton | Commio | VoIP | 0 |
| 840-236 | Claremont | Onvoy (Sinch) | VoIP | 0 |
| 840-237 | Ontario | Onvoy (Sinch) | VoIP | 0 |
| 840-238 | Pomona | AT&T Mobility | Wireless | 0 |
| 840-239 | Fontana | Onvoy (Sinch) | VoIP | 0 |
| 840-240 | Diamond Bar | Onvoy (Sinch) | VoIP | 0 |
| 840-241 | Rialto | Onvoy (Sinch) | VoIP | 0 |
| 840-242 | Upland | Onvoy (Sinch) | VoIP | 0 |
| 840-243 | Pomona | T-Mobile | Wireless | 0 |
| 840-244 | Diamond Bar | T-Mobile | Wireless | 0 |
| 840-245 | Redlands | T-Mobile | Wireless | 0 |
| 840-246 | Etiwanda | T-Mobile | Wireless | 0 |
| 840-247 | Highland | T-Mobile | Wireless | 0 |
| 840-248 | Fontana | T-Mobile | Wireless | 0 |
| 840-249 | Marshall | T-Mobile | Wireless | 0 |
| 840-250 | Arrowhead | T-Mobile | Wireless | 0 |
| 840-251 | Redlands | T-Mobile | Wireless | 0 |
| 840-252 | Mentone | T-Mobile | Wireless | 0 |
| 840-253 | Calimesa | T-Mobile | Wireless | 0 |
| 840-254 | Rialto | Onvoy (Sinch) | VoIP | 0 |
| 840-255 | San Bernardino | Onvoy (Sinch) | VoIP | 0 |
| 840-256 | Upland | T-Mobile | Wireless | 0 |
| 840-257 | Colton | T-Mobile | Wireless | 0 |
| 840-258 | Highland | Verizon Wireless | Wireless | 0 |
| 840-259 | Pomona | AT&T Mobility | Wireless | 0 |
| 840-260 | Pomona | T-Mobile | Wireless | 0 |
| 840-261 | Fontana | AT&T Mobility | Wireless | 0 |
| 840-262 | Arrowhead | T-Mobile | Wireless | 0 |
| 840-263 | Fontana | AT&T Mobility | Wireless | 0 |
| 840-264 | Pomona | AT&T Mobility | Wireless | 0 |
| 840-265 | Arrowhead | T-Mobile | Wireless | 0 |
| 840-266 | San Bernardino | Verizon Wireless | Wireless | 0 |
| 840-267 | Pomona | AT&T Mobility | Wireless | 0 |
| 840-268 | Marshall | AT&T Mobility | Wireless | 0 |
| 840-269 | Ontario | Onvoy (Sinch) | VoIP | 0 |
| 840-270 | Ontario | AT&T Mobility | Wireless | 0 |
| 840-271 | Fontana | Verizon Wireless | Wireless | 0 |
| 840-272 | Chino | Onvoy (Sinch) | VoIP | 0 |
| 840-273 | Mentone | Onvoy (Sinch) | VoIP | 0 |
| 840-274 | Arrowhead | Onvoy (Sinch) | VoIP | 0 |
| 840-275 | Pomona | Verizon Wireless | Wireless | 0 |
| 840-276 | Upland | Verizon Wireless | Wireless | 0 |
| 840-277 | Claremont | Verizon Wireless | Wireless | 0 |
| 840-278 | Arrowhead | T-Mobile | Wireless | 0 |
| 840-279 | Ontario | Verizon Wireless | Wireless | 0 |
| 840-280 | San Bernardino | AT&T | VoIP | 0 |
| 840-281 | Colton | T-Mobile | Wireless | 0 |
| 840-282 | Chino | Onvoy (Sinch) | VoIP | 0 |
| 840-283 | Arrowhead | Onvoy (Sinch) | VoIP | 0 |
| 840-284 | Chino | Onvoy (Sinch) | VoIP | 0 |
| 840-285 | Fontana | Onvoy (Sinch) | VoIP | 0 |
| 840-286 | Arrowhead | T-Mobile | Wireless | 0 |
| 840-287 | Marshall | Onvoy (Sinch) | VoIP | 0 |
| 840-288 | San Bernardino | Verizon Business | VoIP | 0 |
| 840-289 | Diamond Bar | Onvoy (Sinch) | VoIP | 0 |
| 840-290 | Upland | Onvoy (Sinch) | VoIP | 0 |
| 840-291 | San Bernardino | Onvoy (Sinch) | VoIP | 0 |
| 840-292 | San Bernardino | AT&T Mobility | Wireless | 0 |
| 840-293 | Etiwanda | Onvoy (Sinch) | VoIP | 0 |
| 840-294 | San Bernardino | Verizon Wireless | Wireless | 0 |
| 840-295 | Ontario | AT&T Mobility | Wireless | 0 |
| 840-296 | Chino | Onvoy (Sinch) | VoIP | 0 |
| 840-297 | Calimesa | Onvoy (Sinch) | VoIP | 0 |
| 840-298 | Highland | Onvoy (Sinch) | VoIP | 0 |
| 840-299 | San Bernardino | Vonage | VoIP | 0 |
| 840-300 | Redlands | Fractel | VoIP | 0 |
| 840-333 | Pomona | Fractel | VoIP | 0 |
| 840-336 | Colton | Fractel | VoIP | 0 |
| 840-345 | Pomona | Fractel | VoIP | 0 |
| 840-356 | Arrowhead | Fractel | VoIP | 0 |
| 840-400 | Ontario | Fractel | VoIP | 0 |
| 840-444 | Arrowhead | Fractel | VoIP | 0 |
| 840-465 | Chino | Fractel | VoIP | 0 |
| 840-466 | Upland | Ton80 Communications | VoIP | 0 |
| 840-500 | Big Bear Lake | Fractel | VoIP | 0 |
| 840-587 | San Bernardino | Fractel | VoIP | 0 |
| 840-588 | Diamond Bar | Fractel | VoIP | 0 |
| 840-600 | Colton | Fractel | VoIP | 0 |
| 840-666 | Fontana | Fractel | VoIP | 0 |
| 840-677 | Etiwanda | Fractel | VoIP | 0 |
| 840-688 | Crestline | Fractel | VoIP | 0 |
| 840-699 | Ontario | Fractel | VoIP | 0 |
| 840-777 | Pomona | Terra Nova Telecom | Landline | 0 |
| 840-788 | Fontana | Fractel | VoIP | 0 |
| 840-799 | Rialto | Fractel | VoIP | 0 |
| 840-800 | Upland | Fractel | VoIP | 0 |
| 840-804 | Claremont | Onvoy (Sinch) | VoIP | 0 |
| 840-837 | Pomona | Ton80 Communications | VoIP | 0 |
| 840-840 | Ontario | Onvoy (Sinch) | VoIP | 0 |
| 840-877 | Marshall | Fractel | VoIP | 0 |
| 840-888 | Redlands | Terra Nova Telecom | Landline | 0 |
| 840-899 | Highland | Fractel | VoIP | 0 |
| 840-900 | Rialto | Fractel | VoIP | 0 |
| 840-977 | Claremont | Fractel | VoIP | 0 |
| 840-996 | San Bernardino | AT&T Mobility | Wireless | 0 |
| 840-997 | Claremont | Onvoy (Sinch) | VoIP | 0 |
| 840-998 | Highland | Verizon Wireless | Wireless | 0 |
| 840-999 | Upland | Terra Nova Telecom | Landline | 0 |
Area code 840 questions
Where is area code 840?
Area code 840 is in California. Its biggest rate centers are Pomona, San Bernardino, Arrowhead, Fontana, Chino.
What time zone is area code 840?
Area code 840 is in the Pacific time zone.
Is a call from area code 840 a scam?
An area code alone can't tell you. Scammers use and spoof numbers in every area code. 1 840 number has been flagged on ShadyCall. Look up the full number to see its reports and FTC/FCC complaints.
What carriers use area code 840?
Of its 132 exchanges, the most were assigned to T-Mobile, Onvoy (Sinch), Fractel. Numbers can be ported to any carrier, so the exchange shows the original carrier only.
What area codes overlay 840?
840 shares its area with 909. In an overlay, new numbers get the newer codes and you dial all ten digits.