Local Calling Guide

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Mangum, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-499 A OKCYOKCEXOY  530C TELEPORT COMMUNICATIONS AMERICA OK - LLC 536      
580-499 0 OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   
580-499 1 OKCYOKCEXWZ  515J IP HORIZON LLC 536   2026-04-12   
580-499 4   145J TERRA NOVA TELECOM INC. 536   2025-04-09   
580-499 6 OKCYOKCEXOY  530C TELEPORT COMMUNICATIONS AMERICA OK - LLC 536   2022-04-07   
580-706 A OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-706 0 OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-706 1 OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-706 2 OKCZOKZCFMD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2011-03-18   
580-706 3 OKCYOKMPDS0  7258 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 536   2017-09-01   
580-706 4 OKCZOKZCFMD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2011-07-01   
580-706 5 OKCYOKCEXXY  516C AT&T CORP. 536   2011-08-25   
580-706 6 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2016-06-15   
580-706 7 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2016-06-15   
580-706 8 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-04-26   
580-706 9 OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536   2011-08-13   
580-782 A MNGMOKMARS1  9533 SOUTHWESTERN BELL 536      
580-782 1 MNGMOKMARS1  9533 SOUTHWESTERN BELL 536      
580-782 2 MNGMOKMARS1  9533 SOUTHWESTERN BELL 536      
580-782 3 MNGMOKMARS1  9533 SOUTHWESTERN BELL 536      
580-782 4 OKCYOKCEXBZ  073H TELNYX LLC 536   2019-09-28   
580-782 5 MNGMOKMARS1  9533 SOUTHWESTERN BELL 536      
580-782 6 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-05-28   
580-782 8 OKCYOKCEXJY  409F ONVOY, LLC - OK 536   2021-06-26   
580-782 9 OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2015-12-05   
580-859 A OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-859 0 OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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