You are reviewing the Area Code (NPA/NXX) report for 312-223. Did you mean to search the SMS short code 312223?
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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 | 312223 |
| Basic Format | 312-223 |
| NPA (Area Code) | 312 |
| NXX | 223 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | City | State |
|---|---|---|---|---|---|---|
| 312-223-XXXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | CHICAGO ZONE 01 | IL |
| Phone | Name | Address |
|---|---|---|
| 312-223-2000 | Chicago Title Insurance Company | |
| 312-223-9201 | CK REPORTING, LTD. | |
| 312-223-8500 | Residence Inn Chicago Downtown/Loop | 11 South LaSalle Street Chicago 60603 US |
Reports
Anonymous User from , IL
April 29, 2026 at 3:28 PM
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