Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 580 [Rate centres in NPA 580] [Dial plan for NPA 580]

NXX: 738

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-738 A Headrick OK HDRCOKMARL0  9533 SOUTHWESTERN BELL 536      
580-738 0 Headrick OK OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536      
580-738 1 Headrick OK HDRCOKMARL0  9533 SOUTHWESTERN BELL 536      
580-738 2 Headrick OK OKCYOKCEXBZ  073H TELNYX LLC 536      
580-738 3 Headrick OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536      
580-738 4 Headrick OK OKCZOKZCFMD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536      
580-738 5 Headrick OK   145J TERRA NOVA TELECOM INC. 536      
580-738 6 Headrick OK OKCYOKCEXXY  516C AT&T CORP. 536      
580-738 7 Headrick OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536      
580-738 8 Headrick OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.