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.

Switch: DTRTMIVWDMD

<< 1 2 3 4

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
810-380 9 Flushing MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
810-433 8 Fenton MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
810-433 9 Fenton MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
810-442 5 Deckerville MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
810-458 0 Linden MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   
810-466 4 Columbiaville MI 624H ONVOY SPECTRUM, LLC 340   2024-03-23   
810-474 5 Avoca MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
810-500 3 Hadley MI 624H ONVOY SPECTRUM, LLC 340   2024-03-23   
810-525 8 Emmett MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   
810-537 8 Sandusky MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
810-617 3 Otisville MI 624H ONVOY SPECTRUM, LLC 340   2024-03-23   
810-633 7 Applegate MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
810-634 2 New Lothrop MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
810-642 1 Smiths Creek MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
810-645 6 Port Sanilac MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
810-666 7 Flint MI 624H ONVOY SPECTRUM, LLC 340   2020-07-07   
810-666 8 Flint MI 624H ONVOY SPECTRUM, LLC 340   2020-07-07   
810-666 9 Flint MI 624H ONVOY SPECTRUM, LLC 340   2020-07-07   
810-669 7 Capac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-21   
810-669 8 Capac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-21   
810-672 2 Snover MI 624H ONVOY SPECTRUM, LLC 340   2024-03-23   
810-692 9 Byron MI 624H ONVOY SPECTRUM, LLC 340   2021-11-21   
810-710 2 Carsonville MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
810-740 8 St Clair MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
810-746 2 Hartland MI 624H ONVOY SPECTRUM, LLC 340   2021-11-22   
810-748 4 Algonac MI 624H ONVOY SPECTRUM, LLC 340   2022-02-21   
810-788 4 Yale MI 624H ONVOY SPECTRUM, LLC 340   2021-06-17   
810-794 6 Algonac MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
810-796 5 Dryden MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   
810-799 1 Grand Blanc MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
810-799 2 Grand Blanc MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
810-818 6 Montrose MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   
810-842 4 Imlay City MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   
810-878 6 Croswell MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
810-881 0 Peck MI 624H ONVOY SPECTRUM, LLC 340   2024-03-23   
810-884 7 Marine City MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   
810-886 5 Brown City MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
947-204 1 Milford-White Lake MI 624H ONVOY SPECTRUM, LLC 340   2020-07-07   
947-204 2 Milford-White Lake MI 624H ONVOY SPECTRUM, LLC 340   2020-07-07   
947-204 3 Milford-White Lake MI 624H ONVOY SPECTRUM, LLC 340   2020-07-07   
947-219 7 Birmingham MI 624H ONVOY SPECTRUM, LLC 340   2021-06-13   
947-223 8 Commerce MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
947-223 9 Commerce MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
947-226 1 Auburn Heights MI 624H ONVOY SPECTRUM, LLC 340   2021-07-01   
947-226 7 Auburn Heights MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
947-226 9 Auburn Heights MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
947-227 3 Walled Lake MI 624H ONVOY SPECTRUM, LLC 340   2021-06-17   
947-227 6 Walled Lake MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
947-227 9 Walled Lake MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
947-229 3 Clarkston MI 624H ONVOY SPECTRUM, LLC 340   2021-07-11   
947-229 4 Clarkston MI 624H ONVOY SPECTRUM, LLC 340   2021-07-11   
947-229 5 Clarkston MI 624H ONVOY SPECTRUM, LLC 340   2021-07-11   
947-230 2 Royal Oak MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
947-233 7 Northville MI 624H ONVOY SPECTRUM, LLC 340   2022-02-17   
947-235 2 Southfield MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
947-237 0 Birmingham MI 624H ONVOY SPECTRUM, LLC 340   2022-03-06   
947-238 0 Southfield MI 624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-238 1 Southfield MI 624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-239 0 Clarkston MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
947-239 1 Clarkston MI 624H ONVOY SPECTRUM, LLC 340   2021-12-02   
947-242 0 West Bloomfield MI 624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-242 1 West Bloomfield MI 624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-244 6 Ortonville MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
947-245 1 Drayton Plains MI 624H ONVOY SPECTRUM, LLC 340   2022-03-06   
947-245 2 Drayton Plains MI 624H ONVOY SPECTRUM, LLC 340   2022-03-06   
947-269 2 Rochester MI 624H ONVOY SPECTRUM, LLC 340   2024-03-23   
947-271 2 Holly MI 624H ONVOY SPECTRUM, LLC 340   2024-04-05   
947-345 3 Oxford MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
947-348 3 South Lyon MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
947-366 4 Farmington MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   
947-376 3 Troy MI 624H ONVOY SPECTRUM, LLC 340   2021-06-17   
947-400 6 West Bloomfield MI 624H ONVOY SPECTRUM, LLC 340   2021-06-17   
947-426 5 Southfield MI 624H ONVOY SPECTRUM, LLC 340   2022-03-09   
947-466 7 Milford-White Lake MI 624H ONVOY SPECTRUM, LLC 340   2022-03-17   
947-466 8 Milford-White Lake MI 624H ONVOY SPECTRUM, LLC 340   2022-03-17   
947-600 3 Northville MI 624H ONVOY SPECTRUM, LLC 340   2021-06-15   
947-729 3 Royal Oak MI 624H ONVOY SPECTRUM, LLC 340   2022-01-13   
947-729 4 Royal Oak MI 624H ONVOY SPECTRUM, LLC 340   2022-01-13   
947-729 5 Royal Oak MI 624H ONVOY SPECTRUM, LLC 340   2022-01-13   
947-729 6 Royal Oak MI 624H ONVOY SPECTRUM, LLC 340   2022-01-13   
947-944 3 Farmington MI 624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-944 4 Farmington MI 624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-955 0 Pontiac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-28   
947-955 1 Pontiac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-28   
947-955 2 Pontiac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-28   
947-955 3 Pontiac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-28   
947-955 4 Pontiac MI 624H ONVOY SPECTRUM, LLC 340   2021-11-28   
989-271 2 Gaines MI 624H ONVOY SPECTRUM, LLC 340   2021-11-22   
989-271 3 Gaines MI 624H ONVOY SPECTRUM, LLC 340   2021-11-22   
989-461 5 Gaines MI 624H ONVOY SPECTRUM, LLC 340   2021-06-14   

<< 1 2 3 4

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.