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.

Sterling, MA

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
978-286 A   8924 BROADWING COMMUNICATIONS, LLC - MA 128      
978-286 0   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
978-286 1   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-286 2   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
978-286 3   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
978-286 4   073H TELNYX LLC 128   2017-05-03   
978-286 5   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-286 6   7135 TC SYSTEMS, INC. 128   2018-10-05   
978-286 7   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-286 8   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-10-21   
978-286 9   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-05   
978-422 A STNGMABRRS1  9102 VERIZON NEW ENGLAND INC. 128      
978-422 0   9102 VERIZON NEW ENGLAND INC. 128      
978-422 1   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-02-14   
978-422 2   9102 VERIZON NEW ENGLAND INC. 128      
978-422 3   9102 VERIZON NEW ENGLAND INC. 128      
978-422 4   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-01-13   
978-422 5   9102 VERIZON NEW ENGLAND INC. 128      
978-422 6   9102 VERIZON NEW ENGLAND INC. 128      
978-422 7   9102 VERIZON NEW ENGLAND INC. 128      
978-422 8   9102 VERIZON NEW ENGLAND INC. 128      
978-422 9   9102 VERIZON NEW ENGLAND INC. 128      
978-563 A CHFRMAAHPS1  6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128      
978-563 1   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128      
978-563 2   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2010-07-22   
978-563 3   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128   2013-05-29   
978-563 4   4536 XO MASSACHUSETTS, INC. 128   2008-08-28   
978-563 5   892D ONVOY, LLC - MA 128   2012-03-22   
978-563 6   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128   2007-02-01   
978-563 7   7575 CENTURYLINK COMMUNICATIONS LLC 128   2014-04-25   
978-563 8   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-05   
978-563 9   990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
978-678 A WRCSMACEX1X  3370 CTC COMMUNICATIONS CORP. - MA 128      
978-678 0   3370 CTC COMMUNICATIONS CORP. - MA 128      
978-678 1   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-678 3   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-678 4   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-678 5   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-678 6   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-678 7   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-678 8   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-678 9   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
978-843 A CMBRMAAWRS0  8924 BROADWING COMMUNICATIONS, LLC - MA 128      
978-843 0   8924 BROADWING COMMUNICATIONS, LLC - MA 128      
978-843 1   3370 CTC COMMUNICATIONS CORP. - MA 128   2005-12-23   
978-843 3   4536 XO MASSACHUSETTS, INC. 128   2006-04-23   
978-843 4   892D ONVOY, LLC - MA 128   2016-04-11   
978-843 5   990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-06-06   
978-843 6   966G LOCAL ACCESS LLC - MA 128   2015-10-30   
978-843 7   8924 BROADWING COMMUNICATIONS, LLC - MA 128      

1 2 >>

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.