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: 978 [Rate centres in NPA 978] [Dial plan for NPA 978]

<< 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 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-706 0 Clinton MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-706 1 Clinton MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-03-10   
978-706 2 Clinton MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-706 3 Clinton MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
978-706 4 Clinton MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
978-706 5 Clinton MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-08-02   
978-706 6 Clinton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-04-07   
978-706 7 Clinton MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2013-10-29   
978-706 8 Clinton MA   515J IP HORIZON LLC 128   2015-03-27   
978-706 9 Clinton MA   515J IP HORIZON LLC 128   2016-07-01   
978-707 A Harvard MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-707 0 Harvard MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-10-21   
978-707 1 Harvard MA   829J PAETEC ITEL, LLC 128   2006-12-28   
978-707 2 Harvard MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-05-26   
978-707 4 Harvard MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-08-02   
978-707 5 Harvard MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-22   
978-707 6 Harvard MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-04-07   
978-707 7 Harvard MA   829J PAETEC ITEL, LLC 128   2006-05-09   
978-707 8 Harvard MA   829J PAETEC ITEL, LLC 128   2007-09-03   
978-707 9 Harvard MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
978-708 A Groton MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
978-708 0 Groton MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-11-24   
978-708 1 Groton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-22   
978-708 2 Groton MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2024-11-21   
978-708 3 Groton MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-04-09   
978-708 4 Groton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-22   
978-708 5 Groton MA SOVLMAAB5MD  732H BARR TELL USA, INC. - MA 128   2016-01-01   
978-708 6 Groton MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-10-01   
978-708 7 Groton MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2014-04-24   
978-708 8 Groton MA BSTPMALLOMD  073H TELNYX LLC 128   2017-04-28   
978-708 9 Groton MA   515J IP HORIZON LLC 128   2017-07-06   
978-709 A Athol MA   829J PAETEC ITEL, LLC 128      
978-709 0 Athol MA   829J PAETEC ITEL, LLC 128      
978-709 1 Athol MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
978-709 2 Athol MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-06-23   
978-709 3 Athol MA   829J PAETEC ITEL, LLC 128      
978-709 4 Athol MA   829J PAETEC ITEL, LLC 128      
978-709 5 Athol MA   829J PAETEC ITEL, LLC 128      
978-709 6 Athol MA   829J PAETEC ITEL, LLC 128      
978-709 7 Athol MA   829J PAETEC ITEL, LLC 128      
978-709 8 Athol MA   829J PAETEC ITEL, LLC 128      
978-709 9 Athol MA   829J PAETEC ITEL, LLC 128      
978-710 A Lowell MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-710 0 Lowell MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-710 1 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2011-06-08   
978-710 2 Lowell MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128   2010-10-28   
978-710 3 Lowell MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-10-17   
978-710 4 Lowell MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-10-17   
978-710 5 Lowell MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-10-17   
978-710 6 Lowell MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-10-17   

<< 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 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 >>

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.