Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 972 [Rate centres in NPA 972] [Dial plan for NPA 972]

NXX: 477

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-477 A Plano TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552      
972-477 1 Plano TX   6529 T-MOBILE USA, INC. 552   2025-05-16   
972-477 2 Plano TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 3 Plano TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 4 Plano TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 5 Plano TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 6 Plano TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 7 Plano TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2025-07-11   
972-477 8 Plano TX   732J NUSO, LLC 552   2025-05-09   
972-477 9 Plano TX   732J NUSO, LLC 552   2025-05-09   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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