Local Calling Guide
Area code/prefix search
NPA: 773 [Rate centres in NPA 773] [Dial plan for NPA 773]
NXX: 646
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
773-646 | A | Chicago Zone 09-Mitchell | IL | CHCGILMHRS0 | 9329 ILLINOIS BELL TEL CO | 358 |
Last updated: Fri, 22 Mar 2024 03:02:44 UTC
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