The 312 Area Code (or Area Code 312) is located in the state of MO. Area Code 312 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 1.63 million unique phone numbers and 5.08 million individuals near the city of Saint Louis
Area code 312 was put into service. In 1989 Area code 312 was split to form area code 708. In 1996 area code 312 was split again to form area code 773. In 2009 area code 312 was overlaid with area code 872.
Chicago, Hinsdale, La Grange Park, Northbrook, Roselle, Wheeling.
PREFIX | COUNTY | CITY | CARRIER | TYPE |
---|---|---|---|---|
312-502 | Cook | Chicago | Cellco Partnership Dba Verizon Wireless - IL | Wireless |
312-503 | Cook | Chicago | Broadwing Communications, Llc - IL | Landline |
312-504 | Cook | Chicago | New Cingular Wireless Pcs, Llc - IL | Wireless |
312-505 | Cook | Chicago | Cellco Partnership Dba Verizon Wireless - IL | Wireless |
312-506 | Cook | Chicago | First Communications, Llc | Landline |
312-507 | Cook | Chicago | Ameritech Illinois | Landline |
312-508 | Cook | Chicago | Peerless Network Of Illinois, Llc - IL | Landline |
312-509 | Cook | Chicago | Peerless Network Of Illinois, Llc - IL | Landline |
312-510 | DuPage | Hinsdale | New Cingular Wireless Pcs, Llc - IL | Wireless |
312-512 | Cook | Chicago | Usa Mobility Wireless, Inc. | Wireless |
312-513 | Cook | Chicago | New Cingular Wireless Pcs, Llc - IL | Wireless |
312-514 | Cook | Chicago | American Messaging Services, Llc | Wireless |
312-515 | Cook | Chicago | Cellco Partnership Dba Verizon Wireless - IL | Wireless |
312-516 | Cook | Chicago | Ameritech Illinois | Landline |
312-518 | Cook | Wheeling | New Cingular Wireless Pcs, Llc - IL | Wireless |
312-519 | Cook | Chicago | Cellco Partnership Dba Verizon Wireless - IL | Wireless |
312-520 | Cook | Chicago | Cellco Partnership Dba Verizon Wireless - IL | Wireless |
312-521 | Cook | Chicago | At&t Local | Landline |
312-523 | Cook | Chicago | Sprint Spectrum L.p. | Wireless |
312-524 | Cook | Wheeling | New Cingular Wireless Pcs, Llc - IL | Wireless |
312-525 | Cook | Chicago | Mcimetro Access Transmission Services Llc | Landline |
312-526 | Cook | Chicago | Ameritech Illinois | Landline |
312-527 | Cook | Chicago | Ameritech Illinois | Landline |
312-528 | Cook | Chicago | Ameritech Illinois | Landline |
312-529 | Cook | Chicago | At&t Local | Landline |
312-530 | Cook | Chicago | Usa Mobility Wireless, Inc. | Wireless |
312-531 | DuPage | Hinsdale | New Cingular Wireless Pcs, Llc - IL | Wireless |
312-532 | Cook | Chicago | T-Mobile Usa, Inc. | Wireless |
312-533 | Cook | Chicago | Cellco Partnership Dba Verizon Wireless - IL | Wireless |
312-534 | Cook | Chicago | Ameritech Illinois | Landline |
312-537 | Cook | Chicago | Ameritech Illinois | Landline |
312-540 | Cook | Chicago | Ameritech Illinois | Landline |
312-541 | Cook | Chicago | Ameritech Illinois | Landline |
312-542 | Cook | Chicago | Ameritech Illinois | Landline |
312-543 | Cook | Chicago | New Cingular Wireless Pcs, Llc - IL | Wireless |
312-544 | Cook | Chicago | Ameritech Illinois | Landline |
312-545 | Cook | Chicago | Sprint Spectrum L.p. | Wireless |
312-546 | Cook | Chicago | Level 3 Communications, Llc - IL | Landline |
312-547 | Cook | Chicago | New Cingular Wireless Pcs, Llc - IL | Wireless |
312-548 | Cook | Chicago | Broadwing Communications, Llc - IL | Landline |
312-550 | Cook | Chicago | Cellco Partnership Dba Verizon Wireless - IL | Wireless |
312-551 | Cook | Chicago | Ameritech Illinois | Landline |
312-552 | Cook | Chicago | Ameritech Illinois | Landline |
312-553 | Cook | Chicago | Ameritech Illinois | Landline |
312-554 | Cook | Chicago | Ameritech Illinois | Landline |
312-556 | Cook | Chicago | Ameritech Illinois | Wireless |
312-557 | Cook | Chicago | Ameritech Illinois | Landline |
312-558 | Cook | Chicago | Ameritech Illinois | Landline |
312-559 | Cook | Chicago | Ameritech Illinois | Landline |
312-560 | Cook | Chicago | New Cingular Wireless Pcs, Llc - IL | Wireless |
312-561 | Cook | Chicago | Cellco Partnership Dba Verizon Wireless - IL | Wireless |
312-562 | Cook | Chicago | Usa Mobility Wireless, Inc. | Wireless |
312-563 | Cook | Chicago | Ameritech Illinois | Landline |
312-564 | Cook | Chicago | First Communications, Llc | Landline |
312-565 | Cook | Chicago | Ameritech Illinois | Landline |
312-566 | Cook | Chicago | Ameritech Illinois | Landline |
312-567 | Cook | Chicago | Ameritech Illinois | Landline |
312-568 | Cook | Chicago | Ameritech Illinois | Landline |
312-569 | Cook | Chicago | Ameritech Illinois | Landline |
312-570 | Cook | Chicago | Ameritech Illinois | Landline |
312-571 | Cook | Chicago | Usa Mobility Wireless, Inc. | Wireless |
312-572 | Cook | Chicago | Ameritech Illinois | Landline |
312-573 | Cook | Chicago | Ameritech Illinois | Landline |
312-574 | Cook | Chicago | Ameritech Illinois | Landline |
312-575 | Cook | Chicago | Ameritech Illinois | Landline |
312-576 | Cook | Chicago | New Cingular Wireless Pcs, Llc - IL | Wireless |
312-577 | Cook | Chicago | Mci Worldcom Communications, Inc. - IL | Landline |
312-578 | Cook | Chicago | Ameritech Illinois | Landline |
312-580 | Cook | Chicago | Ameritech Illinois | Landline |
312-582 | Cook | Chicago | Ameritech Illinois | Landline |
Phone Number 312-535-6971 |
USAGE Landline |
City Chicago |
Operate Read more about who called from 3125356971 |
Update Time Mar-20-2024 |
Phone Number 312-325-0621 |
USAGE Landline |
City Chicago |
Operate Read more about who called from 3123250621 |
Update Time Mar-20-2024 |
Phone Number 312-332-7119 |
USAGE Landline |
City Chicago |
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Update Time Mar-20-2024 |
Phone Number 312-225-5555 |
USAGE Landline |
City Chicago |
Operate Read more about who called from 3122255555 |
Update Time Mar-20-2024 |
Phone Number 312-500-4314 |
USAGE Landline |
City Chicago |
Operate Read more about who called from 3125004314 |
Update Time Mar-20-2024 |
Phone Number 312-380-4033 |
USAGE Landline |
City Chicago |
Operate Read more about who called from 3123804033 |
Update Time Mar-19-2024 |
Phone Number 312-818-5250 |
USAGE Landline |
City Chicago |
Operate Read more about who called from 3128185250 |
Update Time Dec-27-2023 |
Phone Number 312-632-6812 |
USAGE Landline |
City Chicago |
Operate Read more about who called from 3126326812 |
Update Time Dec-26-2023 |
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