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.

Romulus, MI

1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
734-229 A RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-229 0 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-229 1 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-229 2 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-229 3 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-229 4 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-229 5 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-229 6 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-229 7 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-229 8   460K FIRST COMMUNICATIONS, LLC 340      
734-229 9 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-247 A RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-247 0 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-247 1 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-247 2 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-247 3 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-247 4 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-247 5 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-247 6 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-247 7 RMLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-247 8 SFLDMIDICA0  2550 123.NET, LLC 340      
734-247 9   279B CLEAR RATE COMMUNICATIONS, INC. - MI 340      
734-267 A CMPTMIIFCM0  9748 AMERICAN MESSAGING SERVICES, LLC 340      
734-380 A SFLDMIMKDS2  6630 USA MOBILITY WIRELESS, INC. 340      
734-403 A   829J PAETEC ITEL, LLC 340      
734-403 0   829J PAETEC ITEL, LLC 340      
734-403 1   829J PAETEC ITEL, LLC 340      
734-403 2   829J PAETEC ITEL, LLC 340      
734-403 3 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-403 4 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-403 5 ANARMIMNX8X  3535 ACD TELECOM, INC. - MI 340      
734-403 6 SFLDMIDC0MD  4632 TELNET WORLDWIDE, INC. 340      
734-403 7   145J TERRA NOVA TELECOM INC. 340      
734-403 8 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-403 9 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-406 A DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-406 0 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
734-406 1 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
734-406 3 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-406 4 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-406 5 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-406 6 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-406 7 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-406 8 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-406 9 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-413 A SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
734-413 0 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
734-413 1 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-413 2 SFLDMIDNDS5  9714 GRID 4 COMMUNICATIONS, INC. - MI 340      
734-413 3 FETPMIAU2MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 340      
734-413 4 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
734-413 5 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
734-413 6 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-413 7 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
734-413 8 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
734-413 9 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-442 A   829J PAETEC ITEL, LLC 340      
734-442 0   829J PAETEC ITEL, LLC 340      
734-442 1   829J PAETEC ITEL, LLC 340      
734-442 2 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
734-442 3 ANARMIMNX8X  3535 ACD TELECOM, INC. - MI 340      
734-442 4   961J WOW! INTERNET, CABLE AND PHONE 340      
734-442 5   829J PAETEC ITEL, LLC 340      
734-442 6   961J WOW! INTERNET, CABLE AND PHONE 340      
734-442 7 DTRTMIBASMD  516C AT&T CORP. 340      
734-442 8 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-442 9   829J PAETEC ITEL, LLC 340      
734-494 A SFLDMIOL1MD  4044 GLOBAL CROSSING TELEMANAGEMENT, INC. - MI 340      
734-494 0 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
734-494 1 SFLDMIOL1MD  4044 GLOBAL CROSSING TELEMANAGEMENT, INC. - MI 340      
734-494 2 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
734-494 3   829J PAETEC ITEL, LLC 340      
734-494 4 SFLDMIOL1MD  4044 GLOBAL CROSSING TELEMANAGEMENT, INC. - MI 340      
734-494 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
734-494 8   145J TERRA NOVA TELECOM INC. 340      
734-499 A SFLDMIMK8MD  965H FRACTEL, LLC 340      
734-499 0 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
734-499 1 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
734-499 2 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
734-499 3 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
734-499 4 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
734-499 5 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340      
734-499 9 SFLDMIMK8MD  965H FRACTEL, LLC 340      
734-532 A SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-532 0 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-532 1 DTRTMIBAUMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
734-532 2 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
734-532 3 SFLDMITODS2  543C ONVOY, LLCV - MI 340      
734-532 4 WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340      
734-532 5 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-532 6 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-532 8 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-685 A SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
734-685 0 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-685 1 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
734-685 2 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-685 3 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-685 4 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-685 5 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      
734-685 6 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340      

1 2 3 >>

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.