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: 325

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-325 A Hillsdale OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536      
580-325 0 Hillsdale OK OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2016-02-19   
580-325 1 Hillsdale OK OKCYOKCEXBZ  073H TELNYX LLC 536   2019-09-28   
580-325 2 Hillsdale OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2020-07-11   
580-325 3 Hillsdale OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2020-07-11   
580-325 4 Hillsdale OK   515J IP HORIZON LLC 536   2026-04-05   
580-325 5 Hillsdale OK OKCYOKCEXXY  516C AT&T CORP. 536   2011-08-25   
580-325 6 Hillsdale OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2016-06-14   
580-325 7 Hillsdale OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-03-04   
580-325 8 Hillsdale OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-03-04   
580-325 9 Hillsdale OK   612K CSC VOICE, LLC 536   2022-11-11   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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