Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 505 [Rate centres in NPA 505] [Dial plan for NPA 505]

NXX: 646

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
505-646 A Fence Lake NM ALBQNM10X3X  516J TON80 COMMUNICATIONS, LLC 664      
505-646 2 Fence Lake NM ALBQNMMAXLX  5470 LEVEL 3 COMMUNICATIONS, LLC - NM 664   2023-02-18   
505-646 4 Fence Lake NM ALBQNM10X3X  516J TON80 COMMUNICATIONS, LLC 664   2022-05-04   
505-646 6 Fence Lake NM   145J TERRA NOVA TELECOM INC. 664   2025-07-06   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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