Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

NXX: 453

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-453 A Tombstone AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668      
520-453 0 Tombstone AZ   939H COMMIO, LLC 668   2021-06-11   
520-453 1 Tombstone AZ   073H TELNYX LLC 668   2020-11-21   
520-453 2 Tombstone AZ   630E ONVOY, LLC - AZ 668   2020-11-24   
520-453 3 Tombstone AZ   630E ONVOY, LLC - AZ 668   2020-11-24   
520-453 4 Tombstone AZ   630E ONVOY, LLC - AZ 668   2020-09-10   
520-453 5 Tombstone AZ   630E ONVOY, LLC - AZ 668   2020-09-10   
520-453 7 Tombstone AZ   321J HD CARRIER LLC 668   2020-11-15   
520-453 8 Tombstone AZ   321J HD CARRIER LLC 668   2020-11-15   
520-453 9 Tombstone AZ   579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2021-01-03   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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