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| Raw Number | 773400 |
| Basic Format | 773-400 |
| NPA (Area Code) | 773 |
| NXX | 400 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State |
|---|---|---|---|---|---|---|---|
| 773-400-XXXX | 9748 | AMERICAN MESSAGING SERVICES, LLC | CHICGOZN02 | AS | 04/16/2001 | CHICAGO ZONE 02 | IL |
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