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: 308

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-308 A Hartshorne OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-308 0 Hartshorne OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-308 1 Hartshorne OK TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538   2015-06-21   
918-308 2 Hartshorne OK TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538   2020-04-12   
918-308 3 Hartshorne OK TULTOKCL8MD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2014-06-01   
918-308 4 Hartshorne OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2016-09-29   
918-308 5 Hartshorne OK TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538   2019-05-04   
918-308 6 Hartshorne OK TULSOKTBXHY  409F ONVOY, LLC - OK 538   2016-09-29   
918-308 7 Hartshorne OK TULSOKTBX6Z  508J CENTURYLINK COMMUNICATIONS, LLC 538   2017-04-07   
918-308 8 Hartshorne OK TULSOKTBX8Y  530C TELEPORT COMMUNICATIONS AMERICA OK - LLC 538   2017-01-13   
918-308 9 Hartshorne OK TULSOKTBXFY  119F BANDWIDTH.COM CLEC, LLC - OK 538   2017-03-26   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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