Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Royse City EMS, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-636 A RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 0 RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 1 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-06-24   
972-636 2 RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 3 RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 4 DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2013-04-22   
972-636 5 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-05-08   
972-636 6 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2024-01-07   
972-636 7 RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      
972-636 8 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2006-05-08   
972-636 9 RYCYTXNERS0  9533 SOUTHWESTERN BELL 552      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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