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.

Lansing, MI

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
517-360 A LNNGMIMNXJY  9748 AMERICAN MESSAGING SERVICES, LLC 346      
517-363 A LNNGMIMN363  9323 MICHIGAN BELL TEL CO 346      
517-364 A LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346      
517-367 A LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-371 A LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-372 A LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-373 A LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346      
517-374 A LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346      
517-377 A LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346      
517-377 0 LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346      
517-377 1 LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346      
517-377 2 LNNGMIMNX4Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2017-03-15   
517-377 3 LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346      
517-377 4 LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346      
517-377 5 LNNGMIMNXSZ  5562 METROPCS, INC. 346   2017-02-17   
517-377 6 LNNGMIMNXSZ  5562 METROPCS, INC. 346   2017-02-17   
517-377 7 LNNGMIMNXSZ  5562 METROPCS, INC. 346   2020-09-10   
517-377 8 LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346      
517-377 9 LNNGMIMNDS1  9323 MICHIGAN BELL TEL CO 346      
517-381 A OKMSMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-385 A   700J WAVENATION, LLC 346   2026-03-28   
517-385 0   700J WAVENATION, LLC 346   2026-03-28   
517-385 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2026-06-26   
517-385 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2026-06-26   
517-385 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2026-06-26   
517-385 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2026-06-26   
517-388 A LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346      
517-388 0 LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346      
517-388 1 LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346      
517-388 2 LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346      
517-388 3 LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346      
517-388 4 LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346      
517-388 5 LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346      
517-388 6 LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346      
517-388 7 LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2015-11-20   
517-388 8 LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2015-12-02   
517-388 9 LNNGMIXIAMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 346   2016-02-03   
517-391 A   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      
517-391 0 LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2004-12-05   
517-391 1   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 346      
517-391 2 LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2005-01-02   
517-391 3   145J TERRA NOVA TELECOM INC. 346   2022-12-17   
517-391 4 LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2005-01-02   
517-391 5   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 346      
517-391 6 LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2004-08-13   
517-391 7 LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2004-08-13   
517-391 8 LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2004-12-05   
517-391 9 LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2005-10-23   
517-393 A LNNGMISORS0  9323 MICHIGAN BELL TEL CO 346      
517-394 A LNNGMISORS0  9323 MICHIGAN BELL TEL CO 346      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.