Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 781

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-781 A Coldwater MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
517-781 0 Coldwater MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2005-07-07   
517-781 1 Coldwater MI GDRPMIBL31Z  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 348   2021-03-26   
517-781 2 Coldwater MI THRRMIXTQMD  624H ONVOY SPECTRUM, LLC 348   2022-01-10   
517-781 3 Coldwater MI GDRQMIBODS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 348   2020-09-08   
517-781 4 Coldwater MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
517-781 5 Coldwater MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2005-07-08   
517-781 6 Coldwater MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2005-07-08   
517-781 7 Coldwater MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2019-05-04   
517-781 8 Coldwater MI GDRPMIBL04Z  543C ONVOY, LLCV - MI 348   2019-05-04   
517-781 9 Coldwater MI THRRMIXTQMD  624H ONVOY SPECTRUM, LLC 348   2022-01-10   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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