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: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-233 A La Mesa NM LAMSNMMARS1  9636 QWEST CORPORATION 664      
575-233 0 La Mesa NM   9636 QWEST CORPORATION 664      
575-233 1 La Mesa NM   9636 QWEST CORPORATION 664      
575-233 2 La Mesa NM   9636 QWEST CORPORATION 664      
575-233 3 La Mesa NM   9636 QWEST CORPORATION 664      
575-233 4 La Mesa NM   9636 QWEST CORPORATION 664      
575-233 5 La Mesa NM   9636 QWEST CORPORATION 664      
575-233 6 La Mesa NM   206F ONVOY, LLC - NM 664   2006-10-29   
575-233 7 La Mesa NM   5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2004-11-14   
575-233 8 La Mesa NM   5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2008-09-17   
575-233 9 La Mesa NM   9636 QWEST CORPORATION 664      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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