You are reviewing the Area Code (NPA/NXX) report for 312-541. Did you mean to search the SMS short code 312541?
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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 | 312541 |
| Basic Format | 312-541 |
| NPA (Area Code) | 312 |
| NXX | 541 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | City | State |
|---|---|---|---|---|---|---|
| 312-541-XXXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | CHICAGO ZONE 01 | IL |
| Phone | Name | Address |
|---|---|---|
| 312-541-2822 | Leon J. Teichner & Associates, P.C. | 161 North Clark Street Chicago 60601 US |
| 312-541-2831 | Leon J. Teichner & Associates, P.C. | 161 North Clark Street Chicago 60601 US |
| 312-541-9500 | Bain & Company | 190 South LaSalle Street Chicago 60603 US |
Reports
Anonymous User from , IL
April 11, 2026 at 4:21 PM
Anonymous User from , IL
April 11, 2026 at 3:42 PM
Anonymous User from Chicago, Illinois
January 13, 2026 at 11:27 AM
Anonymous User from Chicago, Illinois
June 4, 2025 at 11:51 AM
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Anonymous User from Chicago, Illinois
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Anonymous User from , IL
October 25, 2022 at 4:10 PM
Anonymous User from , IL
August 11, 2022 at 11:40 AM