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]

Block: A

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

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-504 A Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-505 A Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-506 A Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-507 A Detroit Zone 5 MI SFLDMIMNDS1  9323 MICHIGAN BELL TEL CO 340      
313-508 A Detroit Zone 5 MI SFLDMIMNDS1  9323 MICHIGAN BELL TEL CO 340      
313-509 A Detroit Zone 2 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-510 A Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-512 A Detroit Zone 4 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-513 A Detroit Zone 1 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-514 A Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-515 A Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-516 A Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-518 A Detroit Zone 5 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-519 A Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-520 A Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-521 A Detroit Zone 2 MI DTRTMIPGDS0  9323 MICHIGAN BELL TEL CO 340      
313-522 A Detroit Zone 6 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-523 A Detroit Zone 6 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-524 A Detroit Zone 1 MI SFLDMITOGMD  622J SKYE TELECOM LLC DBA SKYETEL 340      
313-525 A Detroit Zone 6 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-526 A Detroit Zone 2 MI DTRTMIPGDS0  9323 MICHIGAN BELL TEL CO 340      
313-527 A Detroit Zone 2 MI DTRTMIPGDS0  9323 MICHIGAN BELL TEL CO 340      
313-528 A Detroit Zone 6 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-529 A Detroit Zone 6 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-530 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-531 A Detroit Zone 5 MI DTRTMIRFDS0  9323 MICHIGAN BELL TEL CO 340      
313-532 A Detroit Zone 5 MI DTRTMIRFDS0  9323 MICHIGAN BELL TEL CO 340      
313-533 A Detroit Zone 5 MI DTRTMIRFDS0  9323 MICHIGAN BELL TEL CO 340      
313-534 A Detroit Zone 5 MI DTRTMIRFDS0  9323 MICHIGAN BELL TEL CO 340      
313-535 A Detroit Zone 5 MI DTRTMIRFDS0  9323 MICHIGAN BELL TEL CO 340      
313-536 A Detroit Zone 4 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-537 A Detroit Zone 5 MI DTRTMIRFDS0  9323 MICHIGAN BELL TEL CO 340      
313-538 A Detroit Zone 5 MI DTRTMIRFDS0  9323 MICHIGAN BELL TEL CO 340      
313-539 A Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-540 A Detroit Zone 4 MI SFLDMIMK3MD  197D VONAGE AMERICA LLC 340      
313-541 A Detroit Zone 5 MI DTRTMIRFDS0  9323 MICHIGAN BELL TEL CO 340      
313-542 A Detroit Zone 5 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-543 A Detroit Zone 5 MI DTRTMIRFDS0  9323 MICHIGAN BELL TEL CO 340      
313-544 A Detroit Zone 4 MI   5562 METROPCS, INC. 340      
313-545 A Detroit Zone 1 MI DTRTMIBHDS1  9323 MICHIGAN BELL TEL CO 340      
313-546 A Detroit Zone 1 MI DTRTMIBAUMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
313-547 A Detroit Zone 5 MI SFLDMIMKDMD  321J HD CARRIER LLC 340      
313-548 A Detroit Zone 2 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-549 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-550 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-551 A Detroit Zone 6 MI DTRTMIVWDS0  9323 MICHIGAN BELL TEL CO 340      
313-552 A Detroit Zone 1 MI SFLDMIMKCMD  321J HD CARRIER LLC 340      
313-553 A Detroit Zone 1 MI DTRTMIRVDS0  9323 MICHIGAN BELL TEL CO 340      
313-554 A Detroit Zone 6 MI DTRTMIVWDS0  9323 MICHIGAN BELL TEL CO 340      
313-556 A Detroit Zone 1 MI DTRTMIMDRPA  9323 MICHIGAN BELL TEL CO 340      
313-557 A Detroit Zone 1 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-558 A Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-559 A Detroit Zone 5 MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-560 A Detroit Zone 5 MI SFLDMIOKDS0  9323 MICHIGAN BELL TEL CO 340      
313-561 A Detroit Zone 6 MI DRBRMIDBDS0  9323 MICHIGAN BELL TEL CO 340      
313-562 A Detroit Zone 6 MI DRBRMIDBDS0  9323 MICHIGAN BELL TEL CO 340      
313-563 A Detroit Zone 6 MI DRBRMIDBDS0  9323 MICHIGAN BELL TEL CO 340      
313-564 A Detroit Zone 3 MI RYLOMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
313-565 A Detroit Zone 6 MI DRBRMIDBDS0  9323 MICHIGAN BELL TEL CO 340      
313-566 A Detroit Zone 1 MI DTRTMIRVDS0  9323 MICHIGAN BELL TEL CO 340      
313-567 A Detroit Zone 1 MI DTRTMIRVDS0  9323 MICHIGAN BELL TEL CO 340      
313-568 A Detroit Zone 1 MI DTRTMIRVDS0  9323 MICHIGAN BELL TEL CO 340      
313-569 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-570 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-571 A Detroit Zone 2 MI DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-572 A Detroit Zone 1 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
313-573 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-574 A Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-575 A Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-576 A Detroit Zone 1 MI DTRTMICLDS0  9323 MICHIGAN BELL TEL CO 340      
313-577 A Detroit Zone 1 MI DTRTMICLDS0  9323 MICHIGAN BELL TEL CO 340      
313-578 A Detroit Zone 1 MI DTRTMICLDS0  9323 MICHIGAN BELL TEL CO 340      
313-579 A Detroit Zone 2 MI DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-580 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-581 A Detroit Zone 6 MI DRBRMIORDS0  9323 MICHIGAN BELL TEL CO 340      
313-582 A Detroit Zone 6 MI DRBRMIORDS0  9323 MICHIGAN BELL TEL CO 340      
313-583 A Detroit Zone 6 MI DRBRMIFBDS0  9323 MICHIGAN BELL TEL CO 340      
313-584 A Detroit Zone 6 MI DRBRMIORDS0  9323 MICHIGAN BELL TEL CO 340      
313-585 A Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-586 A Detroit Zone 6 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-587 A Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-588 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-589 A Detroit Zone 4 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-590 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-591 A Detroit Zone 3 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
313-592 A Detroit Zone 5 MI DTRTMIRFDS0  9323 MICHIGAN BELL TEL CO 340      
313-593 A Detroit Zone 6 MI DRBRMIFBDS0  9323 MICHIGAN BELL TEL CO 340      
313-594 A Detroit Zone 6 MI DRBRMIFBDS1  9323 MICHIGAN BELL TEL CO 340      
313-595 A Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-596 A Detroit Zone 1 MI DTRTMIBHDS1  9323 MICHIGAN BELL TEL CO 340      
313-597 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-598 A Detroit Zone 5 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-599 A Detroit Zone 5 MI SFLDMIOKDS0  9323 MICHIGAN BELL TEL CO 340      
313-600 A Detroit Zone 5 MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
313-601 A Detroit Zone 5 MI CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      
313-602 A Detroit Zone 5 MI SFLDMIOKDS0  9323 MICHIGAN BELL TEL CO 340      
313-603 A Detroit Zone 3 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-604 A Detroit Zone 1 MI SFLDMIMKJMD  616J LEAP TELECOM, LLC 340      
313-605 A Detroit Zone 5 MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
313-606 A Detroit Zone 5 MI CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      

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

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.