You are reviewing the Area Code (NPA/NXX) report for 312-400. Did you mean to search the SMS short code 312400?
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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 | 312400 |
| Basic Format | 312-400 |
| NPA (Area Code) | 312 |
| NXX | 400 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State |
|---|---|---|---|---|---|---|---|
| 312-400-XXXX | 9748 | AMERICAN MESSAGING SERVICES, LLC | CHICGOZN01 | AS | 04/13/2001 | CHICAGO ZONE 01 | IL |
Reports
Anonymous User from Chicago Il, Illinois
February 12, 2025 at 4:03 PM
Anonymous User from Bozeman, Montana
November 3, 2022 at 5:59 PM