You are reviewing the Area Code (NPA/NXX) report for 312-355. Did you mean to search the SMS short code 312355?
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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 | 312355 |
| Basic Format | 312-355 |
| NPA (Area Code) | 312 |
| NXX | 355 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | City | State |
|---|---|---|---|---|---|---|
| 312-355-XXXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | CHICAGO ZONE 01 | IL |
| Phone | Name | Address |
|---|---|---|
| 312-355-2338 | Chick-fil-A | 750 South Halsted Street Chicago 60607 US |
| 312-355-5645 | University of Illinois - Mile Square Health Center at Back of The Yards | 4630 South Bishop Street Chicago 60609 US |
Reports
Anonymous User from Chicago, Illinois
November 13, 2025 at 6:34 PM
Anonymous User from Chicago, Illinois
November 13, 2025 at 6:31 PM
Anonymous User from Libertyville, Illinois
July 8, 2025 at 11:14 AM
Anonymous User from Libertyville, Illinois
May 7, 2025 at 1:41 PM
Anonymous User from , IL
February 26, 2025 at 1:55 PM
Anonymous User from , IL
February 24, 2025 at 1:22 PM
Anonymous User from Chicago, Illinois
February 4, 2025 at 9:31 AM
Anonymous User from Libertyville, Illinois
December 8, 2024 at 3:10 PM
Anonymous User from Glen Ellyn, Illinois
June 22, 2024 at 4:54 PM
Anonymous User from Chicago, Illinois
February 21, 2024 at 11:20 AM
Anonymous User from Willowbrook, Illinois
January 6, 2023 at 12:05 PM
Anonymous User from , IL
January 4, 2023 at 2:30 PM