Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 291

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-291 A Muskegon MI   817J TELNET WORLDWIDE, INC. 348      
231-291 0 Muskegon MI   817J TELNET WORLDWIDE, INC. 348   2012-07-12   
231-291 1 Muskegon MI   817J TELNET WORLDWIDE, INC. 348   2012-07-12   
231-291 2 Muskegon MI   817J TELNET WORLDWIDE, INC. 348   2012-07-12   
231-291 3 Muskegon MI   817J TELNET WORLDWIDE, INC. 348   2012-07-12   
231-291 4 Muskegon MI   817J TELNET WORLDWIDE, INC. 348   2012-07-12   
231-291 5 Muskegon MI   817J TELNET WORLDWIDE, INC. 348   2012-07-12   
231-291 6 Muskegon MI   817J TELNET WORLDWIDE, INC. 348   2012-07-12   
231-291 7 Muskegon MI   817J TELNET WORLDWIDE, INC. 348   2012-07-12   
231-291 8 Muskegon MI   817J TELNET WORLDWIDE, INC. 348   2012-07-12   
231-291 9 Muskegon MI   817J TELNET WORLDWIDE, INC. 348   2012-07-12   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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