You are reviewing the Area Code (NPA/NXX) report for 312-612. Did you mean to search the SMS short code 312612?
Paste raw digits, a formatted phone number, an area code, an NPA-NXX block, or a short code. US and Canada phone lookups route automatically, and international iMessage checks are available separately.
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 Number | 312612 |
| Basic Format | 312-612 |
| NPA (Area Code) | 312 |
| NXX | 612 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|---|
| 312-612-0XXX | 984E | BANDWIDTH.COM CLEC, LLC - IL | CHICGOZN01 | AS | 02/02/2010 | CHICAGO ZONE 01 | IL | MW | 03/04/2010 |
| 312-612-1XXX | 6115 | LEVEL 3 COMMUNICATIONS, LLC - IL | CHICGOZN01 | AS | 09/15/2000 | CHICAGO ZONE 01 | IL | MW | 09/28/2000 |
| 312-612-2XXX | 6115 | LEVEL 3 COMMUNICATIONS, LLC - IL | CHICGOZN01 | AS | 09/15/2000 | CHICAGO ZONE 01 | IL | MW | 09/28/2000 |
| 312-612-3XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | RT | CHICAGO ZONE 01 | IL | MW | ||
| 312-612-4XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | RT | CHICAGO ZONE 01 | IL | MW | ||
| 312-612-5XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | RT | CHICAGO ZONE 01 | IL | MW | ||
| 312-612-6XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/08/2000 | CHICAGO ZONE 01 | IL | MW | 10/24/2000 |
| 312-612-7XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/08/2000 | CHICAGO ZONE 01 | IL | MW | 10/24/2000 |
| 312-612-8XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/08/2000 | CHICAGO ZONE 01 | IL | MW | 10/24/2000 |
| 312-612-9XXX | 984E | BANDWIDTH.COM CLEC, LLC - IL | CHICGOZN01 | AS | 02/02/2010 | CHICAGO ZONE 01 | IL | MW | 03/04/2010 |
| 312-612-XXXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | CHICAGO ZONE 01 | IL |
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