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: 237

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-237 A Tulsa OK TULSOKWODS0  9533 SOUTHWESTERN BELL 538      
918-237 0 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-237 1 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-237 2 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-237 3 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-237 4 Tulsa OK TULSOKWODS0  9533 SOUTHWESTERN BELL 538      
918-237 5 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-237 6 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-237 7 Tulsa OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-237 8 Tulsa OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-237 9 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.