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.

Detroit Zone 3, MI

<< 1 2 3 4 5 6 7 8 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
313-564 3 RYLOMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
313-564 4 RYLOMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
313-564 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2012-02-21   
313-564 6 SFLDMIMNXOX  528A FIRST COMMUNICATIONS, LLC - MI 340   2008-09-05   
313-564 7 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-11-17   
313-564 8   8685 US XCHANGE OF MICHIGAN LLC DBA CHOICE ONE COMM MI 340   2009-03-23   
313-564 9 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-11-17   
313-591 A SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-591 0 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2020-12-13   
313-591 1 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2020-12-13   
313-591 2 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2020-12-13   
313-591 3 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2021-03-26   
313-591 4 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-07-12   
313-591 5 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2021-03-26   
313-591 6 DTRTMIBAUMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2020-12-14   
313-591 7 DTRTMIBAUMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2020-12-14   
313-591 8 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2021-03-26   
313-591 9 SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2021-01-09   
313-603 A LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-603 0 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2012-12-10   
313-603 1 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2012-12-15   
313-603 2 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2012-12-15   
313-603 3 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2013-01-11   
313-603 4 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2013-01-31   
313-603 5 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2013-02-22   
313-603 6 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-03-28   
313-603 7 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-03-28   
313-603 8 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-06-03   
313-603 9 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2012-12-10   
313-634 A SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-634 0 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-11-02   
313-634 1 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-11-02   
313-634 2 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-11-02   
313-634 3 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-11-02   
313-634 4 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-11-02   
313-634 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-11-02   
313-634 6 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-11-02   
313-634 7 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-11-02   
313-634 8 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-11-02   
313-634 9 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-11-02   
313-644 A SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-644 0 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2021-06-14   
313-644 1 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2021-06-14   
313-644 2 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2021-06-14   
313-644 3 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2021-06-14   
313-644 4 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2021-06-14   
313-644 5 DTRTMIBHJMD  506J TWILIO INTERNATIONAL, INC. 340   2021-07-15   
313-644 6 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2021-06-15   
313-644 7 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-07-12   
313-644 8 SFLDMITOEMD  495J STRATUS NETWORKS 340   2021-06-15   

<< 1 2 3 4 5 6 7 8 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.