You are reviewing the Area Code (NPA/NXX) report for 312-364. Did you mean to search the SMS short code 312364?
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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 | 312364 |
| Basic Format | 312-364 |
| NPA (Area Code) | 312 |
| NXX | 364 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | City | State |
|---|---|---|---|---|---|---|
| 312-364-XXXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | CHICAGO ZONE 01 | IL |
| Phone | Name | Address |
|---|---|---|
| 312-364-9098 | Construction Service Associates |
Reports
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April 22, 2026 at 11:43 AM
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