You are reviewing the Area Code (NPA/NXX) report for 312-440. Did you mean to search the SMS short code 312440?
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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 | 312440 |
| Basic Format | 312-440 |
| NPA (Area Code) | 312 |
| NXX | 440 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | City | State |
|---|---|---|---|---|---|---|
| 312-440-XXXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | CHICAGO ZONE 01 | IL |
| Phone | Name | Address |
|---|---|---|
| 312-440-0020 | Zimmerman Law Offices, P.C. | |
| 312-440-4000 | Wintrust Bank - Oak & Rush | |
| 312-440-0885 | Corcoran's Grill & Pub | 1615 North Wells Street Chicago 60614 US |
| 312-440-2303 | Bailey Edward | 1103 South Mattis Avenue Champaign 61821 US |
Reports
Anonymous User from , IL
April 22, 2026 at 5:25 PM
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April 19, 2016 at 10:40 PM