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
773-487 A Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 AMERITECH ILLINOIS 358      
773-487 0 Chicago Zone 07-Stewart IL   9329 AMERITECH ILLINOIS 358      
773-487 1 Chicago Zone 07-Stewart IL   9329 AMERITECH ILLINOIS 358      
773-487 3 Chicago Zone 07-Stewart IL   9329 AMERITECH ILLINOIS 358      
773-487 4 Chicago Zone 07-Stewart IL   9329 AMERITECH ILLINOIS 358      
773-487 5 Chicago Zone 07-Stewart IL   9329 AMERITECH ILLINOIS 358      
773-487 6 Chicago Zone 07-Stewart IL   9329 AMERITECH ILLINOIS 358      
773-487 8 Chicago Zone 07-Stewart IL   9329 AMERITECH ILLINOIS 358      
773-487 9 Chicago Zone 07-Stewart IL   9329 AMERITECH ILLINOIS 358      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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