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: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-900 A Tulsa OK TULSOKTBXHY  409F ONVOY, LLC - OK 538      
918-900 0 Tulsa OK   409F ONVOY, LLC - OK 538   2015-11-16   
918-900 1 Tulsa OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2015-12-04   
918-900 2 Tulsa OK   119F BANDWIDTH.COM CLEC, LLC - OK 538   2016-08-26   
918-900 3 Tulsa OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2015-12-04   
918-900 4 Tulsa OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2015-12-04   
918-900 5 Tulsa OK   5562 METROPCS, INC. 538   2016-04-18   
918-900 6 Tulsa OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2016-01-11   
918-900 7 Tulsa OK   5562 METROPCS, INC. 538   2016-03-18   
918-900 8 Tulsa OK   5562 METROPCS, INC. 538   2016-02-18   
918-900 9 Tulsa OK   409F ONVOY, LLC - OK 538   2015-11-16   

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

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