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.

Billerica, MA

<< 1 2 3 4 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
978-439 7   508J CENTURYLINK COMMUNICATIONS, LLC 128   2014-06-20   
978-439 8   9102 VERIZON NEW ENGLAND INC. 128      
978-439 9   9102 VERIZON NEW ENGLAND INC. 128      
978-488 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-488 0   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-488 1   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-488 3   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-488 4   892D ONVOY, LLC - MA 128   2023-07-02   
978-488 5   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-488 7   490J DISH WIRELESS, LLC 128   2024-06-13   
978-488 8   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-02-05   
978-488 9   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-495 A   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
978-495 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2004-03-02   
978-495 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2004-03-02   
978-495 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2004-03-02   
978-495 3   829J PAETEC ITEL, LLC 128   2006-10-16   
978-495 4   7135 TC SYSTEMS, INC. 128   2011-09-09   
978-495 5   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2005-04-10   
978-495 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-11-10   
978-495 7   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2014-02-20   
978-495 8   7135 TC SYSTEMS, INC. 128   2015-05-01   
978-495 9   7135 TC SYSTEMS, INC. 128      
978-528 A   829J PAETEC ITEL, LLC 128      
978-528 0   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-02-14   
978-528 1   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-01-28   
978-528 2   829J PAETEC ITEL, LLC 128   2005-12-08   
978-528 3   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-01-28   
978-528 4   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2003-03-24   
978-528 5   829J PAETEC ITEL, LLC 128      
978-528 6   829J PAETEC ITEL, LLC 128      
978-528 7   829J PAETEC ITEL, LLC 128   2005-02-25   
978-528 8   829J PAETEC ITEL, LLC 128   2005-07-04   
978-528 9   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   
978-545 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-545 0   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-545 1   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-545 2   5562 METROPCS, INC. 128   2022-04-28   
978-545 3   5562 METROPCS, INC. 128   2022-04-28   
978-545 4   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-545 5   5562 METROPCS, INC. 128   2022-03-25   
978-545 6   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-545 8   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-545 9   892D ONVOY, LLC - MA 128   2023-09-18   
978-547 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-547 0   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-547 1   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-547 2   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-547 4   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-547 5   892D ONVOY, LLC - MA 128   2021-08-14   
978-547 6   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-547 7   892D ONVOY, LLC - MA 128   2021-08-14   
978-547 8   892D ONVOY, LLC - MA 128   2021-08-14   
978-547 9   892D ONVOY, LLC - MA 128   2021-08-14   
978-584 A   829J PAETEC ITEL, LLC 128      
978-584 0   829J PAETEC ITEL, LLC 128      
978-584 1   515J IP HORIZON LLC 128   2016-07-01   
978-584 2   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-09-22   
978-584 3   318J COMCAST IP PHONE, LLC 128   2015-05-22   
978-584 4   892D ONVOY, LLC - MA 128   2022-05-22   
978-584 5   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-09-22   
978-584 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-11-27   
978-584 7   892D ONVOY, LLC - MA 128   2016-03-07   
978-584 8   892D ONVOY, LLC - MA 128   2016-03-07   
978-584 9   892D ONVOY, LLC - MA 128   2019-02-23   
978-600 A CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-600 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-600 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-600 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-600 3   5562 METROPCS, INC. 128   2022-04-28   
978-600 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-600 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-11-27   
978-600 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-11-27   
978-600 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-600 8   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-21   
978-600 9   939H COMMIO, LLC 128   2024-03-04   
978-608 A CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-608 0   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-608 1   5562 METROPCS, INC. 128   2017-12-10   
978-608 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-11-27   
978-608 3   5562 METROPCS, INC. 128   2017-10-22   
978-608 4   145J TERRA NOVA TELECOM INC. 128   2023-06-22   
978-608 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-11-27   
978-608 6   5562 METROPCS, INC. 128   2017-02-19   
978-608 7   5562 METROPCS, INC. 128   2017-03-18   
978-608 8   892D ONVOY, LLC - MA 128   2012-03-15   
978-608 9   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-11-13   
978-622 A BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-622 0   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-622 1   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-622 2   892D ONVOY, LLC - MA 128   2021-07-10   
978-622 3   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-622 4   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-622 5   892D ONVOY, LLC - MA 128   2021-07-10   
978-622 6   892D ONVOY, LLC - MA 128   2021-07-10   
978-622 7   892D ONVOY, LLC - MA 128   2021-07-10   
978-622 8   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-625 A BLRCMAANRP0  9102 VERIZON NEW ENGLAND INC. 128      
978-625 0   939H COMMIO, LLC 128   2021-09-18   
978-625 1   939H COMMIO, LLC 128   2021-09-18   

<< 1 2 3 4 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.