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Phone numbers, along with owner names and location information, found in U.S. open datasets:
Prefix 773-479 is operated by ILLINOIS BELL TEL CO. Its rate center is CHICGOZN05.
| Company | ILLINOIS BELL TEL CO |
| Rate Center | CHICGOZN05 |
Other prefixes with the same CHICGOZN05 rate center and operated by ILLINOIS BELL TEL CO: