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
978-326 6 Peabody MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-326 7 Peabody MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-19   
978-326 8 Peabody MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2015-09-14   
978-326 9 Peabody MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-09-11   
978-327 A Lawrence MA   829J PAETEC ITEL, LLC 128      
978-327 0 Lawrence MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2009-03-21   
978-327 1 Lawrence MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2009-03-21   
978-327 2 Lawrence MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2009-03-21   
978-327 3 Lawrence MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2009-03-28   
978-327 4 Lawrence MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2009-03-28   
978-327 5 Lawrence MA   829J PAETEC ITEL, LLC 128      
978-327 6 Lawrence MA   829J PAETEC ITEL, LLC 128      
978-327 7 Lawrence MA   829J PAETEC ITEL, LLC 128      
978-327 8 Lawrence MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-15   
978-327 9 Lawrence MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-15   
978-328 A Lowell MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-328 0 Lowell MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-03-13   
978-328 1 Lowell MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-328 2 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2003-02-10   
978-328 3 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-10-12   
978-328 4 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2005-02-19   
978-328 5 Lowell MA LWRNMACAX5X  8468 FREEDOM RING COMMUNICATIONS, LLC 128   2004-04-11   
978-328 6 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2004-05-16   
978-328 7 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2004-06-04   
978-328 8 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2003-08-27   
978-328 9 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2005-08-12   
978-329 A Lawrence MA LWRNMACADS2  9102 VERIZON NEW ENGLAND INC. 128      
978-330 A Billerica MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-330 0 Billerica MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2021-12-31   
978-330 1 Billerica MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-03-15   
978-330 2 Billerica MA CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128   2008-03-08   
978-330 3 Billerica MA   829J PAETEC ITEL, LLC 128   2006-10-30   
978-330 4 Billerica MA CMBRMAMQDS3  316E YMAX COMMUNICATIONS CORP. - MA 128   2009-02-17   
978-330 5 Billerica MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-330 6 Billerica MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-09-11   
978-330 7 Billerica MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-27   
978-330 8 Billerica MA NRTNMAAACM4  5562 METROPCS, INC. 128   2011-08-15   
978-330 9 Billerica MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   
978-331 A Maynard MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-331 0 Maynard MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
978-331 1 Maynard MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-04-27   
978-331 2 Maynard MA NRTNMAAACM4  5562 METROPCS, INC. 128   2022-03-02   
978-331 3 Maynard MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-09-07   
978-331 4 Maynard MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2025-12-17   
978-331 5 Maynard MA NRTNMAAACM4  5562 METROPCS, INC. 128   2022-03-02   
978-331 6 Maynard MA NRTNMAAACM4  5562 METROPCS, INC. 128   2022-03-02   
978-331 7 Maynard MA NRTNMAAACM4  5562 METROPCS, INC. 128   2022-03-02   
978-331 8 Maynard MA NRTNMAAACM4  5562 METROPCS, INC. 128   2022-03-02   
978-331 9 Maynard MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-332 A Lawrence MA LWRNMACAX5X  8468 FREEDOM RING COMMUNICATIONS, LLC 128      

<< 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: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.