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: 553

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-553 A Collinsville OK TLSAOKSMBMD  516C AT&T CORP. 538      
918-553 0 Collinsville OK   119F BANDWIDTH.COM CLEC, LLC - OK 538   2008-12-01   
918-553 1 Collinsville OK   516C AT&T CORP. 538   2004-11-28   
918-553 2 Collinsville OK   145J TERRA NOVA TELECOM INC. 538   2020-05-11   
918-553 3 Collinsville OK   409F ONVOY, LLC - OK 538   2016-09-29   
918-553 4 Collinsville OK   409F ONVOY, LLC - OK 538   2016-09-29   
918-553 5 Collinsville OK   409F ONVOY, LLC - OK 538   2017-11-04   
918-553 6 Collinsville OK   318J COMCAST IP PHONE, LLC 538   2006-03-13   
918-553 7 Collinsville OK   409F ONVOY, LLC - OK 538   2021-03-04   
918-553 8 Collinsville OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2009-01-13   
918-553 9 Collinsville OK   073H TELNYX LLC 538   2018-09-25   

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

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