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.

Carleton, MI

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
734-271 A SFLDMIOL1MD  4044 GLOBAL CROSSING TELEMANAGEMENT, INC.-MI 340      
734-271 0 ANARMIMNX8X  3535 ACD TELECOM, INC. - MI 340   2005-05-02   
734-271 1 SFLDMIOL1MD  4044 GLOBAL CROSSING TELEMANAGEMENT, INC.-MI 340      
734-271 2 LIVNMIUX0MD  5562 METRO PCS, INC. 340   2008-08-09   
734-271 3 LIVNMIUX0MD  5562 METRO PCS, INC. 340   2009-02-23   
734-271 4 SFLDMIOL1MD  4044 GLOBAL CROSSING TELEMANAGEMENT, INC.-MI 340      
734-271 5 LIVNMIUX0MD  5562 METRO PCS, INC. 340   2007-02-02   
734-271 6 SFLDMIQJDS1  7279 MCI WORLDCOM COMMUNICATIONS, INC. - MI 340   2005-02-18   
734-271 7   543C ONVOY, LLC - MI 340   2021-01-31   
734-271 9 SFLDMIOL1MD  4044 GLOBAL CROSSING TELEMANAGEMENT, INC.-MI 340      
734-299 A   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-299 0 LIVNMIUX0MD  5562 METRO PCS, INC. 340   2007-02-02   
734-299 1 LIVNMIUX0MD  5562 METRO PCS, INC. 340   2007-02-02   
734-299 2 WBFDMIMNPS0  288E FUSION COMMUNICATIONS, LLC 340   2007-05-18   
734-299 3 FETPMIAU2MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 340   2007-02-25   
734-299 6 LIVNMIUX0MD  5562 METRO PCS, INC. 340   2007-04-06   
734-299 7   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-506 A SFLDMIBVDS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
734-506 0 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2012-06-15   
734-506 1 SFLDMITODS2  543C ONVOY, LLC - MI 340   2013-01-30   
734-506 2 SFLDMIWKDS2  4125 XO COMMUNICATIONS SERVICES, INC. - MI 340   2005-07-21   
734-506 3 SFLDMIWKDS2  4125 XO COMMUNICATIONS SERVICES, INC. - MI 340   2005-07-21   
734-506 4   508J CENTURYLINK COMMUNICATIONS LLC 340   2014-03-20   
734-506 5 SFLDMIMKDS1  473D CMC TELECOM, INC. - MI 340   2008-01-11   
734-506 6 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2010-02-22   
734-506 7 DTRTMIBASMD  516C AT&T CORP. 340   2006-06-30   
734-506 8 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2009-03-07   
734-506 9 SFLDMIBVDS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
734-654 A CATNMICTRS0  9323 AMERITECH MICHIGAN 340      
734-654 0 CATNMICTRS0  9323 AMERITECH MICHIGAN 340      
734-654 1 CATNMICTRS0  9323 AMERITECH MICHIGAN 340      
734-654 2 CATNMICTRS0  9323 AMERITECH MICHIGAN 340      
734-654 3 CATNMICTRS0  9323 AMERITECH MICHIGAN 340      
734-654 4 CATNMICTRS0  9323 AMERITECH MICHIGAN 340      
734-654 5 FETPMIAU2MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 340   2012-06-25   
734-654 6 CATNMICTRS0  9323 AMERITECH MICHIGAN 340      
734-654 7 CATNMICTRS0  9323 AMERITECH MICHIGAN 340      
734-654 8 CATNMICTRS0  9323 AMERITECH MICHIGAN 340      
734-654 9 CATNMICTRS0  9323 AMERITECH MICHIGAN 340      
734-733 A DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      
734-733 0 SFLDMITODS2  543C ONVOY, LLC - MI 340   2016-03-25   
734-733 1 SFLDMITODS2  543C ONVOY, LLC - MI 340   2016-03-25   
734-733 2   543C ONVOY, LLC - MI 340   2021-01-31   
734-733 3 SFLDMIMK8MD  965H FRACTEL LLC 340   2020-09-14   
734-733 4 SFLDMITODS2  543C ONVOY, LLC - MI 340   2020-11-20   
734-733 5 SFLDMITODS2  543C ONVOY, LLC - MI 340   2020-11-20   
734-733 6   543C ONVOY, LLC - MI 340   2021-01-31   
734-733 7 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-11-29   
734-733 8 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-11-29   
734-733 9 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-11-29   

1 2 >>

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.