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: 601

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-601 A Nowata OK TULSOKTBXHY  409F ONVOY, LLC - OK 538      
918-601 0 Nowata OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2020-04-10   
918-601 1 Nowata OK BXBYOKXBDS1  669B BTC BROADBAND, INC. 538   2011-07-21   
918-601 2 Nowata OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2016-09-29   
918-601 3 Nowata OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2016-09-29   
918-601 4 Nowata OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2020-07-13   
918-601 5 Nowata OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2020-07-13   
918-601 6 Nowata OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2012-10-18   
918-601 8 Nowata OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2021-03-04   
918-601 9 Nowata OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2021-03-04   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.