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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
313-351 2 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-351 3 SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340      
313-351 4 SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340      
313-351 5 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-351 6 DTRTMIBAUMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
313-351 7 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-351 8 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-351 9 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-356 A LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-356 0 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-356 1 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-356 2 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-356 3 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-356 4 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-356 5 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-356 6 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-356 7 SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340      
313-356 8 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-356 9 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-365 A DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-365 0 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-365 1 DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-365 2 DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-365 3 SFLDMIDNDS5  9714 GRID 4 COMMUNICATIONS, INC. - MI 340      
313-365 4 DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-365 5 DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-365 6 DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-365 7 DTRTMIBASMD  516C AT&T CORP. 340      
313-365 8 DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-365 9 DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-366 A DTRTMITWDS0  9323 MICHIGAN BELL TEL CO 340      
313-368 A DTRTMITWDS0  9323 MICHIGAN BELL TEL CO 340      
313-369 A DTRTMITWDS0  9323 MICHIGAN BELL TEL CO 340      
313-419 A LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-419 0 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-419 1 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-419 2 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-419 3 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-419 4 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-419 5 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-419 6 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-419 7 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-419 8 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-419 9 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-422 A SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-422 0 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-422 1 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-422 2   3535 ACD TELECOM, INC. - MI 340      
313-422 3 LIVNMIUX0MD  5562 METROPCS, INC. 340      
313-422 4 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-422 5 LIVNMIUX0MD  5562 METROPCS, INC. 340      
313-422 6 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-422 7 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-422 8   829J PAETEC ITEL, LLC 340      
313-422 9 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-454 A SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-454 0 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-454 1 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-454 2 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-454 3 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-454 4 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-454 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-454 6 LIVNMIUX0MD  5562 METROPCS, INC. 340      
313-454 7 LIVNMIUX0MD  5562 METROPCS, INC. 340      
313-454 8 LIVNMIUX0MD  5562 METROPCS, INC. 340      
313-454 9 LIVNMIUX0MD  5562 METROPCS, INC. 340      
313-455 A LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-455 0 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-455 1 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-455 2 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-455 3 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-455 4 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-455 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-455 6 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-455 7 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-455 8 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-455 9 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-504 A SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-504 0 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
313-504 1 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
313-504 2 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
313-504 3 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
313-504 4 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-504 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-504 6 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
313-504 7 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
313-504 8 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-504 9 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-519 A LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-519 0   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-519 1   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-519 2   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-519 3   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-519 4   490J DISH WIRELESS, LLC 340      
313-519 5   543C ONVOY, LLCV - MI 340      
313-519 6   543C ONVOY, LLCV - MI 340      
313-519 7   543C ONVOY, LLCV - MI 340      
313-519 8 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-519 9 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-564 A RYLOMIMNDS0  9323 MICHIGAN BELL TEL CO 340      

<< 1 2 3 4 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.