Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 773 [Rate centres in NPA 773] [Dial plan for NPA 773]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-399 A Chicago Zone 03-Newcastle IL PRRGILXLDS0  9329 AMERITECH ILLINOIS 358      
773-399 0 Chicago Zone 03-Newcastle IL   9329 AMERITECH ILLINOIS 358      
773-399 1 Chicago Zone 03-Newcastle IL   9329 AMERITECH ILLINOIS 358      
773-399 2 Chicago Zone 03-Newcastle IL   9329 AMERITECH ILLINOIS 358      
773-399 3 Chicago Zone 03-Newcastle IL   9329 AMERITECH ILLINOIS 358      
773-399 4 Chicago Zone 03-Newcastle IL   9329 AMERITECH ILLINOIS 358      
773-399 5 Chicago Zone 03-Newcastle IL   9329 AMERITECH ILLINOIS 358      
773-399 6 Chicago Zone 03-Newcastle IL   9329 AMERITECH ILLINOIS 358      
773-399 7 Chicago Zone 03-Newcastle IL   9329 AMERITECH ILLINOIS 358      
773-399 8 Chicago Zone 03-Newcastle IL   9329 AMERITECH ILLINOIS 358      
773-399 9 Chicago Zone 03-Newcastle IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2014-07-18   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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