Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 575 [Rate centres in NPA 575] [Dial plan for NPA 575]

NXX: 236

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-236 A Carlsbad NM CRLBNMXADS1  1164 VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW 664      
575-236 0 Carlsbad NM CRLBNMXADS1  1164 VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW 664      
575-236 1 Carlsbad NM CRLBNMXADS1  1164 VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW 664      
575-236 2 Carlsbad NM CRLBNMXAPS0  1164 VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW 664      
575-236 3 Carlsbad NM CRLBNMXADS1  1164 VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW 664      
575-236 4 Carlsbad NM ALBQNMMAX2Y  123F BANDWIDTH.COM CLEC, LLC - NM 664   2016-07-22   
575-236 5 Carlsbad NM CRLBNMXADS1  1164 VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW 664      
575-236 6 Carlsbad NM CRLBNMXADS1  1164 VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW 664      
575-236 7 Carlsbad NM CRLBNMXADS1  1164 VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW 664      
575-236 8 Carlsbad NM CRLBNMXADS1  1164 VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW 664      
575-236 9 Carlsbad NM CRLBNMXADS1  1164 VALOR TELECOM TX,LP-NM #1 DBA WINDSTREAM COMM SW 664      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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