Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 719

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-719 A Muskegon MI MSKGMIXLDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-719 0 Muskegon MI MSKGMIXLDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-719 1 Muskegon MI MSKGMIXLDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-719 2 Muskegon MI MSKGMIXLDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-719 3 Muskegon MI MSKGMIXLDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-719 4 Muskegon MI MSKGMIXLDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-719 5 Muskegon MI GDRPMIBLXDZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2011-01-31   
231-719 6 Muskegon MI   279B CLEAR RATE COMMUNICATIONS, INC. - MI 348   2009-06-04   
231-719 7 Muskegon MI GDRPMIBLXDZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2011-01-31   
231-719 8 Muskegon MI MSKGMIXLDS0  0695 FRONTIER NORTH, INC. - MI 348      
231-719 9 Muskegon MI MSKGMIXLDS0  0695 FRONTIER NORTH, INC. - MI 348      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.