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.

Yale, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
539-287 A TLSAOKSMBMD  516C AT&T CORP. 538      
539-287 0 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2023-08-06   
539-287 2 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2022-12-20   
539-287 7 TLSAOKSMBMD  516C AT&T CORP. 538   2022-12-19   
539-287 8   490J DISH WIRELESS, LLC 538   2024-03-03   
918-387 A YALEOKMARS1  9533 SOUTHWESTERN BELL 538      
918-387 0 TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538   2015-03-13   
918-387 1 YALEOKMARS1  9533 SOUTHWESTERN BELL 538      
918-387 2 YALEOKMARS1  9533 SOUTHWESTERN BELL 538      
918-387 3 TULSOKTBDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 538   2016-03-04   
918-387 4 YALEOKMARS1  9533 SOUTHWESTERN BELL 538      
918-387 6 TULTOKCL8MD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2015-12-31   
918-387 7 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2016-09-29   
918-387 8 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2016-09-29   
918-387 9 TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538   2017-03-26   
918-395 A TULSOKTBX6Z  508J CENTURYLINK COMMUNICATIONS, LLC 538      
918-395 0 TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538   2018-06-08   
918-395 1 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2022-03-07   
918-395 2 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2020-07-16   
918-395 3 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2020-07-16   
918-395 4 TULSOKTBXLZ  506J TWILIO INTERNATIONAL, INC. 538   2021-08-07   
918-395 5 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2021-03-04   
918-395 6 TULSOKTBXHY  409F ONVOY, LLC - OK 538   2021-03-04   
918-395 7 TULSOKTBX6Z  508J CENTURYLINK COMMUNICATIONS, LLC 538   2017-04-12   
918-395 8 TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538   2022-07-16   
918-395 9 TULSOKTBX5Z  073H TELNYX LLC 538   2019-01-10   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.