Local Calling Guide

Area code/prefix search

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NPA: 947 [Rate centres in NPA 947] [Dial plan for NPA 947]

NXX: 278

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
947-278 A Pontiac MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2024-07-06   
947-278 0 Pontiac MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2024-11-01   
947-278 1 Pontiac MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2024-11-25   
947-278 2 Pontiac MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-04-03   
947-278 3 Pontiac MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-04-25   
947-278 9 Pontiac MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2024-07-06   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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