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: 991

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-991 A Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-991 0 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2015-09-21   
918-991 1 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2013-10-20   
918-991 2 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2014-10-23   
918-991 3 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2014-10-23   
918-991 4 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2009-03-12   
918-991 5 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2009-03-29   
918-991 6 Tulsa OK TULSOKTB10Z  2813 WINDSTREAM NUVOX OKLAHOMA, LLC 538   2009-03-26   
918-991 7 Tulsa OK TULSOKTB10Z  2813 WINDSTREAM NUVOX OKLAHOMA, LLC 538   2009-03-26   
918-991 8 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2009-03-29   
918-991 9 Tulsa OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2008-11-23   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.