Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Port O'Connor, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
361-408 A CRCHTXTUXDZ  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 564      
361-408 0 CRCHTXTUXDZ  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 564      
361-408 1 PTLVTXXAIMD  903C ONVOY, LLC - TX 564   2024-01-11   
361-408 2 PTLVTXXAMMD  624H ONVOY SPECTRUM, LLC 564   2024-01-05   
361-408 3 CRCHTXTUXDZ  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 564   2021-07-30   
361-408 4 CRCHTXTUX5Y  903C ONVOY, LLC - TX 564   2021-04-04   
361-408 7 CRCHTXTUXWY  508J CENTURYLINK COMMUNICATIONS, LLC 564   2016-05-22   
361-408 8 CRCHTXTUX5Y  903C ONVOY, LLC - TX 564   2021-07-31   
361-408 9 CRCHTXTUX3Y  004F BANDWIDTH.COM CLEC, LLC - TX 564   2020-08-08   
361-983 A PTOCTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-983 0   145J TERRA NOVA TELECOM INC. 564   2025-08-17   
361-983 2 PTOCTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-983 4 PTOCTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 564      
361-983 8 PTLVTXXAPMD  793K TWC IP ENABLED SERVICES, LLC 564   2021-04-27   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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