Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Copan, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
918-532 A COPNOKMARS1  9533 SOUTHWESTERN BELL 538      
918-532 1   9533 SOUTHWESTERN BELL 538      
918-532 3   516C AT&T CORP. 538   2010-11-28   
918-532 4   9533 SOUTHWESTERN BELL 538      
918-532 5   9533 SOUTHWESTERN BELL 538      
918-532 6   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2006-09-25   
918-532 7   145J TERRA NOVA TELECOM INC. 538   2022-11-02   
918-532 8   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 538   2019-11-21   
918-719 A COPNOKMARS1  9533 SOUTHWESTERN BELL 538      
918-719 0   9533 SOUTHWESTERN BELL 538      
918-719 1   409F ONVOY, LLC - OK 538   2016-09-29   
918-719 2   409F ONVOY, LLC - OK 538   2016-09-29   
918-719 5   409F ONVOY, LLC - OK 538   2021-02-28   
918-719 6   409F ONVOY, LLC - OK 538   2021-02-28   
918-719 7   508J CENTURYLINK COMMUNICATIONS, LLC 538   2017-04-06   
918-719 8   073H TELNYX LLC 538   2019-01-21   
918-719 9   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 538   2015-01-09   

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

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