You are reviewing the Area Code (NPA/NXX) report for 312-227. Did you mean to search the SMS short code 312227?
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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 | 312227 |
| Basic Format | 312-227 |
| NPA (Area Code) | 312 |
| NXX | 227 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|---|
| 312-227-0XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/20/2010 | CHICAGO ZONE 01 | IL | MW | 10/15/2010 |
| 312-227-1XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/20/2010 | CHICAGO ZONE 01 | IL | MW | 10/15/2010 |
| 312-227-2XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/20/2010 | CHICAGO ZONE 01 | IL | MW | 10/15/2010 |
| 312-227-3XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/20/2010 | CHICAGO ZONE 01 | IL | MW | 10/15/2010 |
| 312-227-4XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/20/2010 | CHICAGO ZONE 01 | IL | MW | 10/15/2010 |
| 312-227-5XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/20/2010 | CHICAGO ZONE 01 | IL | MW | 10/15/2010 |
| 312-227-6XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/20/2010 | CHICAGO ZONE 01 | IL | MW | 10/15/2010 |
| 312-227-7XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/20/2010 | CHICAGO ZONE 01 | IL | MW | 10/15/2010 |
| 312-227-8XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/20/2010 | CHICAGO ZONE 01 | IL | MW | 10/15/2010 |
| 312-227-9XXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/20/2010 | CHICAGO ZONE 01 | IL | MW | 10/15/2010 |
| 312-227-XXXX | 9329 | ILLINOIS BELL TEL CO | CHICGOZN01 | AS | 09/15/2010 | CHICAGO ZONE 01 | IL |
| Phone | Name | Address |
|---|---|---|
| 312-227-2610 | Lurie Children's Pediatrics in Uptown | 4867 North Broadway Chicago 60640 US |
| 312-227-4000 | Ann & Robert H. Lurie Children's Hospital | 225 East Chicago Avenue Chicago 60611 US |
| 312-227-7600 | Outpatient Center in Northbrook | 1131 Techny Road Northbrook 60062 US |
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