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: 656

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-656 A Duncan OK ENIDOKKI0MD  6272 UNITED STATES CELLULAR - OK 536      
580-656 0 Duncan OK   6272 UNITED STATES CELLULAR - OK 536      
580-656 1 Duncan OK   6272 UNITED STATES CELLULAR - OK 536      
580-656 2 Duncan OK   6272 UNITED STATES CELLULAR - OK 536      
580-656 3 Duncan OK   6272 UNITED STATES CELLULAR - OK 536      
580-656 4 Duncan OK   6272 UNITED STATES CELLULAR - OK 536      
580-656 5 Duncan OK   6272 UNITED STATES CELLULAR - OK 536      
580-656 6 Duncan OK   6272 UNITED STATES CELLULAR - OK 536      
580-656 7 Duncan OK   6272 UNITED STATES CELLULAR - OK 536      
580-656 8 Duncan OK   6272 UNITED STATES CELLULAR - OK 536      
580-656 9 Duncan OK   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2015-12-05   

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

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