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: 918 [Rate centres in NPA 918] [Dial plan for NPA 918]

NXX: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-321 A Kiefer OK KIFROKMARS1  9533 SOUTHWESTERN BELL 538      
918-321 0 Kiefer OK TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538      
918-321 1 Kiefer OK KIFROKMARS1  9533 SOUTHWESTERN BELL 538      
918-321 2 Kiefer OK TULSOKTBXKZ  318J COMCAST IP PHONE, LLC 538      
918-321 3 Kiefer OK KIFROKMARS1  9533 SOUTHWESTERN BELL 538      
918-321 4 Kiefer OK TULSOKTBXHY  409F ONVOY, LLC - OK 538      
918-321 5 Kiefer OK KIFROKMARS1  9533 SOUTHWESTERN BELL 538      
918-321 6 Kiefer OK TULSOKTBXHY  409F ONVOY, LLC - OK 538      
918-321 7 Kiefer OK TULSOKTBXKZ  318J COMCAST IP PHONE, LLC 538      
918-321 8 Kiefer OK TLSAOKSMBMD  516C AT&T CORP. 538      
918-321 9 Kiefer OK   145J TERRA NOVA TELECOM INC. 538      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.