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: LNNGMIDCCMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-268 9 Holt MI 145J TERRA NOVA TELECOM INC. 346   2022-10-07   
517-319 4 Lansing MI 145J TERRA NOVA TELECOM INC. 346   2022-05-06   
517-391 3 Lansing MI 145J TERRA NOVA TELECOM INC. 346   2022-12-17   
517-623 1 Dansville MI 145J TERRA NOVA TELECOM INC. 346   2021-05-04   
517-649 0 Mulliken MI 145J TERRA NOVA TELECOM INC. 346   2021-05-04   
517-664 3 Lansing MI 145J TERRA NOVA TELECOM INC. 346   2021-10-29   
517-769 3 Jackson MI 145J TERRA NOVA TELECOM INC. 346   2021-05-04   
517-855 A Lansing MI 145J TERRA NOVA TELECOM INC. 346      
517-855 5 Lansing MI 145J TERRA NOVA TELECOM INC. 346   2021-04-23   
517-878 8 Leslie MI 145J TERRA NOVA TELECOM INC. 346   2021-05-04   

Last updated: Fri, 01 Dec 2023 03:58:46 UTC

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