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
978-676 6 Lawrence MA   9102 VERIZON NEW ENGLAND INC. 128   2007-10-14   
978-676 7 Lawrence MA   9102 VERIZON NEW ENGLAND INC. 128   2007-10-14   
978-676 8 Lawrence MA   9102 VERIZON NEW ENGLAND INC. 128   2007-10-14   
978-676 9 Lawrence MA   9102 VERIZON NEW ENGLAND INC. 128   2007-10-14   
978-677 A Lowell MA   7135 TC SYSTEMS, INC. 128      
978-677 0 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-02-08   
978-677 1 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-10-08   
978-677 2 Lowell MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2015-02-04   
978-677 3 Lowell MA   7135 TC SYSTEMS, INC. 128      
978-677 4 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-06-28   
978-677 5 Lowell MA SOVLMAAB6MD  939H COMMIO, LLC 128   2021-10-16   
978-677 6 Lowell MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-05-21   
978-677 7 Lowell MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2006-05-21   
978-677 8 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-05-11   
978-677 9 Lowell MA CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128   2008-09-28   
978-678 A Sterling MA   829J PAETEC ITEL, LLC 128      
978-678 0 Sterling MA   829J PAETEC ITEL, LLC 128      
978-678 1 Sterling MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-11-14   
978-678 2 Sterling MA BSTPMALLOMD  073H TELNYX LLC 128   2021-03-04   
978-678 3 Sterling MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-08-14   
978-678 4 Sterling MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-08-14   
978-678 5 Sterling MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
978-678 6 Sterling MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-05-15   
978-678 7 Sterling MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-01-22   
978-678 8 Sterling MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
978-678 9 Sterling MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-11-14   
978-679 A Littleton MA   829J PAETEC ITEL, LLC 128      
978-679 0 Littleton MA   829J PAETEC ITEL, LLC 128      
978-679 1 Littleton MA   829J PAETEC ITEL, LLC 128      
978-679 2 Littleton MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-01-17   
978-679 3 Littleton MA   829J PAETEC ITEL, LLC 128   2012-02-17   
978-679 4 Littleton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
978-679 5 Littleton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
978-679 6 Littleton MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-01-15   
978-679 7 Littleton MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-01-17   
978-679 8 Littleton MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   
978-679 9 Littleton MA   829J PAETEC ITEL, LLC 128      
978-680 A Concord MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-680 3 Concord MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2022-11-07   
978-680 5 Concord MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2022-11-07   
978-680 8 Concord MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-09-03   
978-681 A Lawrence MA LWRNMACADS2  9102 VERIZON NEW ENGLAND INC. 128      
978-682 A Lawrence MA LWRNMACADS2  9102 VERIZON NEW ENGLAND INC. 128      
978-683 A Lawrence MA LWRNMACADS2  9102 VERIZON NEW ENGLAND INC. 128      
978-684 A Andover MA ANDVMAELRP0  9102 VERIZON NEW ENGLAND INC. 128      
978-684 0 Andover MA BSTPMALLOMD  073H TELNYX LLC 128   2017-04-19   
978-684 1 Andover MA ANDVMAELRP0  9102 VERIZON NEW ENGLAND INC. 128      
978-684 2 Andover MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2009-07-03   
978-684 3 Andover MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-04-06   
978-684 4 Andover MA CMBRMABEXBX  732J NUSO, LLC 128   2024-10-28   

<< 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: ISP Telecom

Like this site? We accept donations via PayPal.