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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 | 312321 |
| Basic Format | 312-321 |
| NPA (Area Code) | 312 |
| NXX | 321 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | City | State |
|---|---|---|---|---|---|---|
| 312-321-XXXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | CHICAGO ZONE 01 | IL |
| Phone | Name | Address |
|---|---|---|
| 312-321-1500 | National Kidney Foundation Of Illinois | |
| 312-321-3000 | Sun-Times Media, LLC | |
| 312-321-9800 | Caravan Tours, Inc. | |
| 312-321-0900 | Subway | Chicago 60654 US |
| 312-321-1000 | Pizzeria Uno | 29 East Ohio Street Chicago 60611 US |
| 312-321-6242 | NAHA | 500 North Clark Street Chicago 60654 US |
| 312-321-7129 | 320 River Bar | 320 North Dearborn Street Chicago 60654 US |
| 312-321-8788 | Starbucks | 505 North Michigan Avenue Chicago 60611 US |
| 312-321-8823 | Michael Jordan’s Steak House | 505 North Michigan Avenue Chicago 60611 US |
| 312-321-9314 | Shamrock Club | 210 West Kinzie Street Chicago 60654 US |
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