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.

Chilmark, MA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
508-645 A CHLMMASTRS1  9102 VERIZON NEW ENGLAND INC. 128      
508-645 0 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-04-04   
508-645 1 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-07-06   
508-645 2 CHLMMASTRS1  9102 VERIZON NEW ENGLAND INC. 128      
508-645 3 CHLMMASTRS1  9102 VERIZON NEW ENGLAND INC. 128      
508-645 4 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-07   
508-645 5 CHLMMASTRS1  9102 VERIZON NEW ENGLAND INC. 128      
508-645 6 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-22   
508-645 7 CHLMMASTRS1  9102 VERIZON NEW ENGLAND INC. 128      
508-645 8 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-04-04   
508-645 9 CHLMMASTRS1  9102 VERIZON NEW ENGLAND INC. 128      
508-955 A BSTPMALLDS1  4536 XO MASSACHUSETS, INC. 128      
508-955 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
508-955 1 BSTPMALLDS1  4536 XO MASSACHUSETS, INC. 128   2006-05-28   
508-955 2 BSTPMALLDS1  4536 XO MASSACHUSETS, INC. 128   2006-11-10   
508-955 3 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-05-24   
508-955 4 SOVLMAAB2MD  966G LOCAL ACCESS LLC - MA 128   2015-10-18   
508-955 5 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-04-07   
508-955 6 BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS LLC 128   2014-04-25   
508-955 7 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   
508-955 8 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   
508-955 9   318J COMCAST IP PHONE LLC 128   2006-10-30   
774-717 A CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
774-717 0 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2019-02-08   
774-717 1 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2019-02-08   
774-717 2 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2019-06-13   
774-717 3 CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2017-03-06   
774-717 4 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2019-07-26   
774-717 5 BSTPMALLZMD  506J TWILIO INTERNATIONAL INC 128   2020-12-19   
774-717 6   892D ONVOY, LLC - MA 128   2021-03-28   
774-717 7 SOVLMAABBMD  145J TERRA NOVA TELECOM INC. 128   2020-11-22   
774-717 8 BSTPMALLOMD  073H TELNYX LLC 128   2019-09-27   
774-717 9   624H ONVOY SPECTRUM, LLC 128   2021-04-08   
774-784 A   566J RADIANTIQ LLC 128   2021-06-03   
774-784 6   516J TON80 COMMUNICATIONS LLC 128   2021-06-04   
774-784 7   566J RADIANTIQ LLC 128   2021-06-03   

Last updated: Fri, 23 Jul 2021 12:43:22 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.