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.

NPA: 508 [Rate centres in NPA 508] [Dial plan for NPA 508]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-683 6 Marlboro MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128   2004-07-09   
508-683 7 Marlboro MA BSTNMACODS7  4084 PAETEC COMMUNICATIONS, INC.- MA 128   2007-12-15   
508-683 8 Marlboro MA FRMNMAUNX0X  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128   2008-10-24   
508-683 9 Marlboro MA WSBOMAGJCM0  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2013-12-01   
508-684 A Vineyard Haven MA BRTNMACR0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
508-684 1 Vineyard Haven MA BRTNMACR0MD  3370 CTC COMMUNICATIONS CORP. - MA 128   2002-05-26   
508-684 3 Vineyard Haven MA   318J COMCAST IP PHONE LLC 128   2019-11-23   
508-684 4 Vineyard Haven MA BSTNMACODS7  4084 PAETEC COMMUNICATIONS, INC.- MA 128   2007-10-09   
508-684 5 Vineyard Haven MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2013-01-12   
508-684 6 Vineyard Haven MA WRCSMA05DS0  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
508-684 7 Vineyard Haven MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2012-03-22   
508-684 8 Vineyard Haven MA   318J COMCAST IP PHONE LLC 128   2011-06-24   
508-684 9 Vineyard Haven MA BSTPMALLDS1  4536 XO MASSACHUSETTS, INC. 128   2007-08-06   
508-685 A Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-685 0 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-685 1 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-685 2 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-685 3 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-685 4 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-685 5 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-685 6 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-685 7 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-685 8 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2003-12-20   
508-685 9 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
508-686 A Hopkinton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2021-01-05   
508-686 0 Hopkinton MA WSBOMAGJCM0  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2009-11-13   
508-686 1 Hopkinton MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-05-25   
508-686 2 Hopkinton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-686 4 Hopkinton MA BSTPMALLZMD  506J TWILIO INTERNATIONAL INC 128   2020-12-19   
508-686 5 Hopkinton MA CHTWMABFDS2  966C DSCI, LLC 128   2005-10-01   
508-686 6 Hopkinton MA WSBOMAGJCM0  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2008-03-03   
508-686 7 Hopkinton MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-07-04   
508-686 8 Hopkinton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-686 9 Hopkinton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-12   
508-687 A Vineyard Haven MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
508-687 0 Vineyard Haven MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
508-687 1 Vineyard Haven MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2011-07-11   
508-687 2 Vineyard Haven MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-22   
508-687 3 Vineyard Haven MA CMBRMAORDS0  7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128   2015-01-09   
508-687 4 Vineyard Haven MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-07-13   
508-687 5 Vineyard Haven MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-28   
508-687 6 Vineyard Haven MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-28   
508-687 7 Vineyard Haven MA CHTWMABMGT0  2899 BROADVIEW NETWORKS, INC. - MA 128   2008-08-22   
508-687 9 Vineyard Haven MA   318J COMCAST IP PHONE LLC 128   2007-06-11   
508-688 A Worcester MA FRMNMAWAEMD  7421 AT&T LOCAL 128      
508-688 0 Worcester MA WSBOMAGJCM0  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2006-06-02   
508-688 1 Worcester MA FRMNMAWAEMD  7421 AT&T LOCAL 128      
508-688 2 Worcester MA WSBOMAGJCM0  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2006-06-02   
508-688 3 Worcester MA FRMNMAWAEMD  7421 AT&T LOCAL 128      
508-688 4 Worcester MA WSBOMAGJCM0  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2006-06-02   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.