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: 378

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-378 A Chicago Zone 05-Austin IL CHCGILAURP0  9329 ILLINOIS BELL TEL CO 358      
773-378 0 Chicago Zone 05-Austin IL CHCGILAURP0  9329 ILLINOIS BELL TEL CO 358      
773-378 1 Chicago Zone 05-Austin IL CHCGILAURP0  9329 ILLINOIS BELL TEL CO 358      
773-378 2 Chicago Zone 05-Austin IL CHCGILAURP0  9329 ILLINOIS BELL TEL CO 358      
773-378 3 Chicago Zone 05-Austin IL CHCGILAURP0  9329 ILLINOIS BELL TEL CO 358      
773-378 4 Chicago Zone 05-Austin IL CHCGILAURP0  9329 ILLINOIS BELL TEL CO 358      
773-378 5 Chicago Zone 05-Austin IL CHCGILAURP0  9329 ILLINOIS BELL TEL CO 358      
773-378 6 Chicago Zone 05-Austin IL CHCGILAURP0  9329 ILLINOIS BELL TEL CO 358      
773-378 7 Chicago Zone 05-Austin IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2019-10-22   
773-378 8 Chicago Zone 05-Austin IL CHCGILAURP0  9329 ILLINOIS BELL TEL CO 358      
773-378 9 Chicago Zone 05-Austin IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-07-07   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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