Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 918 [Rate centres in NPA 918] [Dial plan for NPA 918]

NXX: 992

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-992 A Tulsa OK TULTOKCL8MD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538      
918-992 0 Tulsa OK   6529 T-MOBILE USA, INC. 538   2015-07-25   
918-992 1 Tulsa OK   6529 T-MOBILE USA, INC. 538   2015-07-25   
918-992 2 Tulsa OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2014-05-04   
918-992 3 Tulsa OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2014-07-24   
918-992 4 Tulsa OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2014-07-24   
918-992 5 Tulsa OK   516C AT&T CORP. 538   2014-04-24   
918-992 6 Tulsa OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2014-09-13   
918-992 7 Tulsa OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2014-09-13   
918-992 8 Tulsa OK   6529 T-MOBILE USA, INC. 538   2015-07-25   
918-992 9 Tulsa OK   409F ONVOY, LLC - OK 538   2015-07-31   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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