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Exchange · Chicago, IL

(312) 820-xxxx

Every number from 312-820-0000 to 312-820-9999. NANPA records the exchange as assigned to Onvoy (Sinch) for Chicago, IL in 2020. Robocall and scam operations often use many numbers from one exchange, so if one number here is a shady call, its neighbors deserve a second look.

CarrierOnvoy (Sinch)original
Line typeVoIP / internet phonelikely
Rate centerChicago, IL
Flagged numbers13

Reported numbers starting 312-820

NumberVerdictWhat it isReportsComplaints
(312) 820-0957CautionScam or spam text05
(312) 820-2015CautionScam or spam text03
(312) 820-2315CautionScam or spam text05
(312) 820-3781CautionScam or spam text04
(312) 820-3851CautionScam or spam text08
(312) 820-3855CautionScam or spam text03
(312) 820-3874CautionScam or spam text05
(312) 820-3876CautionScam or spam text03
(312) 820-5047CautionScam or spam text03
(312) 820-5048CautionScam or spam text04
(312) 820-6955CautionScam or spam text04
(312) 820-6956CautionScam or spam text04
(312) 820-6957CautionScam or spam text03

About the 312-820 exchange

312-820 is an exchange (the first six digits of a phone number) in area code 312, which covers Illinois. NANPA, which runs the North American Numbering Plan, assigned it to Onvoy (Sinch) for the Chicago, IL rate center in 2020. Numbers from this carrier are usually VoIP / internet phone lines.

People keep their number when they move or switch carrier, so this is where the number was first assigned, not where the caller is today. Local time for 312-820 numbers is usually Central time. Scammers can also fake (spoof) any number, so a call that shows a 312-820 number may not come from Onvoy (Sinch) at all.

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