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.

Waltham, MA

<< 1 2 3 4 5 6 7 8 9 10 11 12 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
781-250 2 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-250 3 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-250 4 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-250 5 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-250 6 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-250 7 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2018-03-16   
781-250 8 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2010-04-04   
781-250 9 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2013-05-01   
781-256 A WLHMMASPDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-290 A WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-290 0 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-290 1 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-290 2 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-290 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-09-01   
781-290 4 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-290 5 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-290 6 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
781-290 7 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
781-290 8 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
781-290 9 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
781-296 A CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
781-296 0 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2010-10-02   
781-296 1 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-09-09   
781-296 2 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
781-296 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2008-06-05   
781-296 4 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-02-03   
781-296 5 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-09-09   
781-296 6 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2007-08-02   
781-296 7 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2008-01-29   
781-296 8 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-15   
781-296 9 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-05-02   
781-314 A WLHMMASPDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-314 0 CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128   2004-11-04   
781-314 1 LWRNMACAX5X  8468 FREEDOM RING COMMUNICATIONS, LLC 128   2005-02-18   
781-314 2 WLHMMASPDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-314 3 WLHMMASPDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-314 4 WLHMMASPDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-314 5 WLHMMASPDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-314 6 CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128   2008-03-09   
781-314 7 WLHMMASPDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-314 8 BSTPMALLDS1  4536 XO MASSACHUSETS, INC. 128   2007-05-13   
781-314 9 CHTWMABF2MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2008-07-19   
781-317 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-317 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-317 1 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-317 2 CMBRMA01MMD  5562 METROPCS, INC. 128   2021-11-14   
781-317 3 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-11-20   
781-317 4 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-317 5 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-317 6   892D ONVOY, LLC - MA 128   2024-03-09   

<< 1 2 3 4 5 6 7 8 9 10 11 12 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.