Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: CRLBTXXAL01

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
325-465 A Carlsbad TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-465 2 Carlsbad TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-465 4 Carlsbad TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-465 5 Carlsbad TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-465 8 Carlsbad TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      
325-465 9 Carlsbad TX 4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 961      

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

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