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.

Port Huron, MI

1 2 3 4 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
810-204 A SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-204 0 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-204 1 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-204 2 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-204 3 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-204 4 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-204 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-204 6 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-204 7 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-204 8 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
810-204 9 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-205 A CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      
810-216 A SFLDMIDC0MD  4632 TELNET WORLDWIDE, INC. 340      
810-216 0 SFLDMIDC0MD  4632 TELNET WORLDWIDE, INC. 340      
810-216 1 SFLDMIDC0MD  4632 TELNET WORLDWIDE, INC. 340      
810-216 2 SFLDMIDC0MD  4632 TELNET WORLDWIDE, INC. 340      
810-216 3 SFLDMIDC0MD  4632 TELNET WORLDWIDE, INC. 340      
810-216 4 SFLDMIDC0MD  4632 TELNET WORLDWIDE, INC. 340      
810-216 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-216 6 WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340      
810-216 7 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-216 8 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-216 9 SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340      
810-218 A DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-218 0 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-218 1 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-218 2   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-218 3   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-218 4   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-218 7 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-218 8 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-218 9 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-242 A DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
810-242 0 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-242 1 SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340      
810-242 2 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-242 3 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-242 4 SFLDMIDC0MD  4632 TELNET WORLDWIDE, INC. 340      
810-242 5 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
810-242 6 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-242 7 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-242 8 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-242 9 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
810-276 A LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-276 0 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
810-276 1 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
810-276 2 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
810-276 3 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-276 4 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-276 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-276 6 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-276 7 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-276 8 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-276 9 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-292 A LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-292 0 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
810-292 1 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
810-292 2 LIVNMIUX0MD  5562 METROPCS, INC. 340      
810-292 3 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-292 4 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-292 5 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-292 6 SFLDMIBVDS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
810-292 7 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-292 8 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-292 9   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-294 A SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
810-294 0 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
810-294 1 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
810-294 2   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-294 3 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-294 4 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
810-294 5 DTRTMIBASMD  516C AT&T CORP. 340      
810-294 6   460K FIRST COMMUNICATIONS, LLC 340      
810-294 7 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-294 8 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-294 9 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-300 A DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
810-314 A SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-314 0 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
810-314 1 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
810-314 2 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-314 3 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
810-314 4 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-314 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-314 6 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-314 7 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-314 8 SFLDMIMKBMD  516J TON80 COMMUNICATIONS, LLC 340      
810-314 9 LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-320 A SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-320 0 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-320 1 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-320 2 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-320 3   829J PAETEC ITEL, LLC 340      
810-320 6 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-320 7 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-320 8 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-320 9 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-334 A DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
810-340 A CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      
810-357 A   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      

1 2 3 4 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.