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: 704

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-704 A Frisco EACS TX FRSCTXCODS1  9533 SOUTHWESTERN BELL 552      
972-704 0 Frisco EACS TX   9533 SOUTHWESTERN BELL 552      
972-704 1 Frisco EACS TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2004-12-02   
972-704 2 Frisco EACS TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2005-05-27   
972-704 3 Frisco EACS TX   516C AT&T CORP. 552   2005-09-12   
972-704 4 Frisco EACS TX   5562 METROPCS, INC. 552   2005-12-14   
972-704 5 Frisco EACS TX   5562 METROPCS, INC. 552   2005-12-14   
972-704 6 Frisco EACS TX   5562 METROPCS, INC. 552   2005-12-14   
972-704 7 Frisco EACS TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-04-24   
972-704 8 Frisco EACS TX   5562 METROPCS, INC. 552   2006-08-07   
972-704 9 Frisco EACS TX   5562 METROPCS, INC. 552   2006-08-07   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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