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: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-295 0 Howell MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2013-05-05   
517-295 1 Howell MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2014-03-24   
517-295 2 Howell MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2014-06-02   
517-295 3 Howell MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2014-07-25   
517-295 4 Howell MI   318J COMCAST IP PHONE, LLC 340   2014-02-07   
517-295 5 Howell MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2015-01-10   
517-295 6 Howell MI   508J CENTURYLINK COMMUNICATIONS, LLC 340   2014-07-15   
517-295 7 Howell MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-06-20   
517-295 8 Howell MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-06-20   
517-295 9 Howell MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-05-29   
517-296 A Montgomery MI MTGMMIXIRS0  4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-296 0 Montgomery MI   4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-296 1 Montgomery MI   4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-296 2 Montgomery MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 346   2016-06-16   
517-296 3 Montgomery MI   543C ONVOY, LLCV - MI 346   2021-06-18   
517-296 4 Montgomery MI   4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-296 5 Montgomery MI   543C ONVOY, LLCV - MI 346   2021-07-11   
517-296 6 Montgomery MI   543C ONVOY, LLCV - MI 346   2018-10-12   
517-296 7 Montgomery MI   543C ONVOY, LLCV - MI 346   2022-03-04   
517-296 8 Montgomery MI   792K CHARTER IP ENABLED SERVICES, LLC 346   2017-07-08   
517-296 9 Montgomery MI   4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-297 A Hillsdale MI LNNGMIMNX4Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346      
517-297 0 Hillsdale MI   939H COMMIO, LLC 346   2022-11-27   
517-297 1 Hillsdale MI   543C ONVOY, LLCV - MI 346   2023-07-30   
517-297 2 Hillsdale MI   5562 METROPCS, INC. 346   2021-10-19   
517-297 3 Hillsdale MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2021-12-17   
517-297 4 Hillsdale MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2021-12-17   
517-297 5 Hillsdale MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2021-12-17   
517-297 6 Hillsdale MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2025-05-15   
517-297 7 Hillsdale MI   543C ONVOY, LLCV - MI 346   2021-11-15   
517-297 8 Hillsdale MI   624H ONVOY SPECTRUM, LLC 346   2024-05-10   
517-297 9 Hillsdale MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2021-10-18   
517-298 A Morenci MI   793K TWC IP ENABLED SERVICES, LLC 340      
517-298 1 Morenci MI   793K TWC IP ENABLED SERVICES, LLC 340   2025-08-03   
517-298 8 Morenci MI   516J TON80 COMMUNICATIONS, LLC 340   2022-04-12   
517-299 A Lansing MI LNNGMIMN08Z  991E BANDWIDTH.COM CLEC, LLC - MI 346      
517-299 0 Lansing MI   991E BANDWIDTH.COM CLEC, LLC - MI 346   2023-03-31   
517-299 1 Lansing MI   543C ONVOY, LLCV - MI 346   2023-07-02   
517-299 2 Lansing MI   991E BANDWIDTH.COM CLEC, LLC - MI 346   2024-09-16   
517-299 3 Lansing MI   490J DISH WIRELESS, LLC 346   2024-10-04   
517-299 4 Lansing MI   490J DISH WIRELESS, LLC 346   2025-03-02   
517-299 5 Lansing MI   991E BANDWIDTH.COM CLEC, LLC - MI 346   2024-12-22   
517-299 6 Lansing MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2025-12-17   
517-299 7 Lansing MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2025-12-17   
517-299 8 Lansing MI   543C ONVOY, LLCV - MI 346   2023-07-30   
517-299 9 Lansing MI   543C ONVOY, LLCV - MI 346   2023-07-30   
517-300 A Onsted MI ADRNMIXGOMD  543C ONVOY, LLCV - MI 340      
517-300 0 Onsted MI   543C ONVOY, LLCV - MI 340   2019-12-11   
517-300 1 Onsted MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2020-04-27   
517-300 2 Onsted MI   543C ONVOY, LLCV - MI 340   2020-06-14   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 >>

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.