Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

NXX: 772

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-772 A Atlas EMS TX FTWOTXEDDS6  7421 AT&T - LOCAL 552      
817-772 8 Atlas EMS TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2003-10-27   
817-772 9 Atlas EMS TX FTWOTXEDDS6  7421 AT&T - LOCAL 552   2003-03-29   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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