Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Princeton, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-736 6 PRTNTXRERS0  9533 SOUTHWESTERN BELL 552      
972-736 7 DLLSTXALDS4  903C ONVOY, LLC - TX 552   2012-05-15   
972-736 8 DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2013-04-22   
972-736 9 DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2013-04-22   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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