Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 580 [Rate centres in NPA 580] [Dial plan for NPA 580]

NXX: 456

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-456 A Roff OK ROFFOKMARS1  9533 SOUTHWESTERN BELL 536      
580-456 0 Roff OK   409F ONVOY, LLC - OK 536   2018-05-03   
580-456 1 Roff OK   9533 SOUTHWESTERN BELL 536      
580-456 2 Roff OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2007-08-09   
580-456 3 Roff OK   073H TELNYX LLC 536   2019-09-28   
580-456 4 Roff OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2008-11-18   
580-456 5 Roff OK   516C AT&T CORP. 536   2011-02-05   
580-456 6 Roff OK   530C TELEPORT COMMUNICATIONS AMERICA OK - LLC 536   2012-04-23   
580-456 7 Roff OK   9533 SOUTHWESTERN BELL 536      
580-456 8 Roff OK   409F ONVOY, LLC - OK 536   2016-06-14   
580-456 9 Roff OK   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2015-01-09   

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

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