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312-731

You are reviewing the Area Code (NPA/NXX) report for 312-731. Did you mean to search the SMS short code 312731?

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Examples: 206-739-5800, 206, 206-739, 48369

🇺🇸 DSN NORTHCOM Area Code Detected

The area code you entered, 312, overlaps with the DSN network for the Continental United States and Puerto Rico under Northern Command (NORTHCOM), though it could also be part of standard civilian phone numbers.

Raw Number312731
Basic Format312-731
NPA (Area Code)312
NXX731

Call Routing Data

NPA-NXX-XOCNCompanyRate CenterUse TypeAssign DateStateRegionBlock Effective Date
312-731-0XXX6529T-MOBILE USA, INC.CHICGOZN01AS07/08/2005ILMW08/01/2005
312-731-1XXX6529T-MOBILE USA, INC.CHICGOZN01AS01/28/2004ILMW02/09/2004
312-731-2XXX6529T-MOBILE USA, INC.CHICGOZN01AS01/28/2004ILMW02/09/2004
312-731-3XXX6529T-MOBILE USA, INC.CHICGOZN01AS11/05/2004ILMW12/06/2004
312-731-4XXX6529T-MOBILE USA, INC.CHICGOZN01AS11/05/2004ILMW12/06/2004
312-731-5XXX6529T-MOBILE USA, INC.CHICGOZN01AS06/14/2005ILMW07/11/2005
312-731-6XXX6529T-MOBILE USA, INC.CHICGOZN01AS06/14/2005ILMW07/11/2005
312-731-7XXX6529T-MOBILE USA, INC.CHICGOZN01AS06/08/2004ILMW07/15/2004
312-731-8XXX6529T-MOBILE USA, INC.CHICGOZN01AS06/08/2004ILMW07/15/2004
312-731-9XXX6529T-MOBILE USA, INC.CHICGOZN01AS07/08/2005ILMW08/10/2005
312-731-XXXX6529T-MOBILE USA, INC.CHICGOZN01ASIL

Business/Government Phones on the 312-731 Prefix

PhoneNameAddress
312-731-4939CrossCountry Mortgage, LLC
312-731-3167Yvolina’s Tamales814 West 18th Street Chicago 60608 US
312-731-4787TE'AMO Sweets2306 South Archer Avenue Chicago 60616 US

Reports

Anonymous User from Waukegan, Illinois

March 12, 2025 at 10:50 AM

312-731-6722 reported as a Robocall. Received on March 6, 2025 at 12:49 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from Acton, California

February 28, 2024 at 12:49 PM

312-731-6897 reported as a Robocall. Received on February 28, 2024 at 9:47 AM.
Call for Medical & prescriptions

Anonymous User from Mount Pleasant, Texas

August 9, 2023 at 10:20 PM

312-731-4881 reported as a Robocall. Received on August 9, 2023 at 6:09 PM.
Call for Calls pretending to be government, businesses, or family and friends

Anonymous User from , IL

January 12, 2023 at 12:09 PM

312-731-1442 reported as a unwanted call. Received on January 12, 2023 at 11:05 AM.

Anonymous User from Pekin, Illinois

June 24, 2022 at 4:27 PM

312-731-1177 reported as a Live Voice or Other. Received on June 24, 2022 at 3:24 PM.

Anonymous User from Belmont, NY

June 14, 2022 at 5:10 PM

None reported as a Text Message. Received on June 14, 2022 at 6:50 AM.
Unwanted call for Prizes Won Something Services
Caller ID indicated they called from 312-731-3510
Contacted via Wireless (cell phone/other mobile device)

Most 'popular' numbers on this prefix:

312-731-0XXX: 312-731-0403 | 312-731-0420 | 312-731-0426 | 312-731-0428 | 312-731-0480 | 312-731-0490 | 312-731-0900 | 312-731-0902 | 312-731-0907 | 312-731-0940 | 312-731-0945 |
312-731-1XXX: 312-731-1100 | 312-731-1111 | 312-731-1122 | 312-731-1171 | 312-731-1178 | 312-731-1179 | 312-731-1400 | 312-731-1409 | 312-731-1414 | 312-731-1440 | 312-731-1441 | 312-731-1447 |
312-731-3XXX: 312-731-3100 | 312-731-3160 | 312-731-3162 | 312-731-3168 | 312-731-3191 | 312-731-3197 | 312-731-3200 | 312-731-3231 | 312-731-3290 | 312-731-3291 | 312-731-3299 | 312-731-3300 | 312-731-3330 | 312-731-3333 | 312-731-3400 | 312-731-3420 | 312-731-3450 | 312-731-3470 | 312-731-3475 | 312-731-3477 | 312-731-3500 | 312-731-3510 | 312-731-3511 | 312-731-3515 | 312-731-3550 | 312-731-3600 | 312-731-3650 | 312-731-3651 | 312-731-3670 | 312-731-3675 | 312-731-3677 | 312-731-3900 | 312-731-3950 | 312-731-3953 | 312-731-3955 |
312-731-4XXX: 312-731-4800 | 312-731-4807 | 312-731-4880 | 312-731-4888 | 312-731-4900 | 312-731-4930 | 312-731-4932 | 312-731-4935 | 312-731-4997 | 312-731-4998 |
312-731-5XXX: 312-731-5300 | 312-731-5320 | 312-731-5330 | 312-731-5350 | 312-731-5355 | 312-731-5600 | 312-731-5601 | 312-731-5650 | 312-731-5655 |
312-731-6XXX: 312-731-6000 | 312-731-6020 | 312-731-6022 | 312-731-6060 | 312-731-6062 | 312-731-6069 | 312-731-6200 | 312-731-6202 | 312-731-6220 | 312-731-6222 | 312-731-6700 | 312-731-6720 | 312-731-6721 | 312-731-6725 | 312-731-6777 | 312-731-6800 | 312-731-6801 | 312-731-6888 | 312-731-6890 | 312-731-6898 | 312-731-6899 |
312-731-8XXX: 312-731-8263 | 312-731-8283 | 312-731-8290 | 312-731-8291 | 312-731-8293 | 312-731-8300 | 312-731-8303 | 312-731-8320 | 312-731-8380 | 312-731-8383 | 312-731-8387 | 312-731-8800 | 312-731-8848 | 312-731-8888 | 312-731-8896 | 312-731-8898 | 312-731-8899 |
312-731-9XXX: 312-731-9000 | 312-731-9010 | 312-731-9020 | 312-731-9030 | 312-731-9031 | 312-731-9033 | 312-731-9400 | 312-731-9402 | 312-731-9405 | 312-731-9409 | 312-731-9450 |