Illinois Bell Telephone Company
d/b/a AT&T Illinois
Company Information
| Legal Name: | Illinois Bell Telephone Company |
| Doing Business As: | AT&T Illinois |
| Service Type: | Incumbent LEC |
| Holding Company: | AT&T, Inc. |
| FCC Filer ID: | 803214 |
| CORES ID: | 0027735927 |
| USF Contributor: | Yes |
| Last Filing: | 4/1/2019 |
Headquarters
| City: | Chicago |
| State: | Illinois (IL) |
| ZIP Code: | 60606 |
| Phone: | (847) 248-2000 |
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