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.

NPA: 313 [Rate centres in NPA 313] [Dial plan for NPA 313]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-768 A Detroit Zone 6 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-768 0 Detroit Zone 6 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-768 1 Detroit Zone 6 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-768 2 Detroit Zone 6 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-768 3 Detroit Zone 6 MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-04-08   
313-768 4 Detroit Zone 6 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2007-02-26   
313-768 5 Detroit Zone 6 MI SFLDMITOJMD  961J WOW! INTERNET, CABLE AND PHONE 340   2005-10-09   
313-768 6 Detroit Zone 6 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2007-02-26   
313-768 7 Detroit Zone 6 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2006-01-29   
313-768 8 Detroit Zone 6 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2007-02-26   
313-768 9 Detroit Zone 6 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-769 A Detroit Zone 6 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-769 0 Detroit Zone 6 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2013-01-31   
313-769 1 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2013-01-20   
313-769 2 Detroit Zone 6 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2007-04-18   
313-769 3 Detroit Zone 6 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2004-08-27   
313-769 4 Detroit Zone 6 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-769 5 Detroit Zone 6 MI SFLDMITOJMD  961J WOW! INTERNET, CABLE AND PHONE 340   2004-08-15   
313-769 6 Detroit Zone 6 MI SFLDMITOJMD  961J WOW! INTERNET, CABLE AND PHONE 340   2005-08-23   
313-769 7 Detroit Zone 6 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-09-12   
313-769 8 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2014-02-24   
313-769 9 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2013-02-22   
313-770 A Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-771 A Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2024-12-16   
313-771 0 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-04-01   
313-771 1 Detroit Zone 1 MI   543C ONVOY, LLCV - MI 340   2025-06-19   
313-771 2 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-04-01   
313-771 3 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-04-01   
313-771 4 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-04-01   
313-771 5 Detroit Zone 1 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2018-10-15   
313-771 6 Detroit Zone 1 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2019-02-20   
313-771 7 Detroit Zone 1 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2018-12-08   
313-771 8 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-12-29   
313-771 9 Detroit Zone 1 MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2018-09-17   
313-772 A Detroit Zone 4 MI DTRTMIUVDS0  9323 MICHIGAN BELL TEL CO 340      
313-772 0 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2006-08-13   
313-772 1 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2006-08-13   
313-772 2 Detroit Zone 4 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2004-09-17   
313-772 3 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2006-08-13   
313-772 4 Detroit Zone 4 MI SFLDMITOJMD  961J WOW! INTERNET, CABLE AND PHONE 340   2005-06-09   
313-772 5 Detroit Zone 4 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2006-08-13   
313-772 6 Detroit Zone 4 MI DTRTMIUVDS0  9323 MICHIGAN BELL TEL CO 340      
313-772 7 Detroit Zone 4 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-772 8 Detroit Zone 4 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-772 9 Detroit Zone 4 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-05-06   
313-773 A Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-773 0 Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-08-17   
313-773 1 Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-04-21   
313-773 2 Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-08-17   
313-773 3 Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-08-17   
313-773 4 Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-08-17   
313-773 5 Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-08-17   
313-773 6 Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-08-17   
313-773 7 Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-08-17   
313-773 8 Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2013-08-17   
313-773 9 Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-10-12   
313-774 A Detroit Zone 1 MI BRHMMIBDBMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
313-774 0 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-09   
313-774 1 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-09   
313-774 2 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-09   
313-774 3 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-09   
313-774 4 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-09   
313-774 5 Detroit Zone 1 MI BRHMMIBDBMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2019-12-11   
313-774 6 Detroit Zone 1 MI BRHMMIBDBMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2019-04-17   
313-774 7 Detroit Zone 1 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2020-06-16   
313-774 8 Detroit Zone 1 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2019-05-24   
313-774 9 Detroit Zone 1 MI BRHMMIBDBMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2019-08-30   
313-775 A Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-775 0 Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-10-04   
313-775 1 Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-10-04   
313-775 2 Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-10-04   
313-775 3 Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-10-04   
313-775 4 Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-10-04   
313-775 5 Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-10-04   
313-775 6 Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-10-04   
313-775 7 Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-10-04   
313-775 8 Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-10-04   
313-775 9 Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2015-10-04   
313-776 A Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2024-11-16   
313-776 0 Detroit Zone 1 MI SFLDMIDNKMD  732J NUSO, LLC 340   2024-11-18   
313-776 1 Detroit Zone 1 MI SFLDMIDNKMD  732J NUSO, LLC 340   2024-11-18   
313-776 2 Detroit Zone 1 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2024-12-08   
313-776 3 Detroit Zone 1 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2024-12-08   
313-776 4 Detroit Zone 1 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2024-12-08   
313-776 5 Detroit Zone 1 MI   543C ONVOY, LLCV - MI 340   2025-06-19   
313-776 6 Detroit Zone 1 MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2024-11-18   
313-776 7 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2024-11-16   
313-776 8 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2024-11-16   
313-776 9 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2024-11-16   
313-777 A Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-777 0 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2015-07-27   
313-777 1 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2015-07-27   
313-777 2 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2015-07-27   
313-777 3 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2015-07-27   
313-777 4 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2015-07-27   
313-777 5 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2015-07-27   
313-777 6 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2015-07-27   
313-777 7 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2015-04-20   
313-777 8 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2015-04-20   
313-777 9 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2015-07-27   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 >>

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.