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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-351 6 Haverhill MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2024-11-28   
978-351 7 Haverhill MA   892D ONVOY, LLC - MA 128   2024-02-26   
978-351 8 Haverhill MA   892D ONVOY, LLC - MA 128   2024-02-26   
978-351 9 Haverhill MA   892D ONVOY, LLC - MA 128   2024-02-26   
978-352 A Georgetown MA GRTWMAWIRS1  9102 VERIZON NEW ENGLAND INC. 128      
978-352 0 Georgetown MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   
978-352 1 Georgetown MA   145J TERRA NOVA TELECOM INC. 128   2024-02-03   
978-352 2 Georgetown MA   9102 VERIZON NEW ENGLAND INC. 128      
978-352 3 Georgetown MA   9102 VERIZON NEW ENGLAND INC. 128      
978-352 4 Georgetown MA   9102 VERIZON NEW ENGLAND INC. 128      
978-352 5 Georgetown MA   9102 VERIZON NEW ENGLAND INC. 128      
978-352 6 Georgetown MA   9102 VERIZON NEW ENGLAND INC. 128      
978-352 7 Georgetown MA   9102 VERIZON NEW ENGLAND INC. 128      
978-352 8 Georgetown MA   9102 VERIZON NEW ENGLAND INC. 128      
978-352 9 Georgetown MA   9102 VERIZON NEW ENGLAND INC. 128      
978-353 A Fitchburg MA FTBGMAMADS1  9102 VERIZON NEW ENGLAND INC. 128      
978-353 0 Fitchburg MA   9102 VERIZON NEW ENGLAND INC. 128      
978-353 1 Fitchburg MA   9102 VERIZON NEW ENGLAND INC. 128      
978-353 2 Fitchburg MA   9102 VERIZON NEW ENGLAND INC. 128      
978-353 3 Fitchburg MA   9102 VERIZON NEW ENGLAND INC. 128      
978-353 4 Fitchburg MA   9102 VERIZON NEW ENGLAND INC. 128      
978-353 5 Fitchburg MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2004-09-17   
978-353 6 Fitchburg MA   9102 VERIZON NEW ENGLAND INC. 128      
978-353 7 Fitchburg MA   9102 VERIZON NEW ENGLAND INC. 128      
978-353 8 Fitchburg MA   9102 VERIZON NEW ENGLAND INC. 128      
978-353 9 Fitchburg MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2003-09-17   
978-354 A Salem MA SALMMANODS0  9102 VERIZON NEW ENGLAND INC. 128      
978-354 1 Salem MA   9102 VERIZON NEW ENGLAND INC. 128      
978-354 2 Salem MA   9102 VERIZON NEW ENGLAND INC. 128      
978-354 3 Salem MA   9102 VERIZON NEW ENGLAND INC. 128      
978-354 4 Salem MA   9102 VERIZON NEW ENGLAND INC. 128      
978-354 5 Salem MA   892D ONVOY, LLC - MA 128   2010-03-15   
978-354 6 Salem MA   515J IP HORIZON LLC 128   2013-04-08   
978-354 7 Salem MA   892D ONVOY, LLC - MA 128   2018-05-31   
978-355 A Barre MA BARRMAJARS1  9102 VERIZON NEW ENGLAND INC. 128      
978-355 0 Barre MA   9102 VERIZON NEW ENGLAND INC. 128      
978-355 1 Barre MA   892D ONVOY, LLC - MA 128   2016-04-20   
978-355 2 Barre MA   9102 VERIZON NEW ENGLAND INC. 128      
978-355 3 Barre MA   9102 VERIZON NEW ENGLAND INC. 128      
978-355 4 Barre MA   9102 VERIZON NEW ENGLAND INC. 128      
978-355 6 Barre MA   9102 VERIZON NEW ENGLAND INC. 128      
978-355 7 Barre MA   892D ONVOY, LLC - MA 128   2016-04-20   
978-355 8 Barre MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-03-12   
978-355 9 Barre MA   9102 VERIZON NEW ENGLAND INC. 128      
978-356 A Ipswich MA IPSWMACORS1  9102 VERIZON NEW ENGLAND INC. 128      
978-357 A North Reading MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-357 0 North Reading MA   829J PAETEC ITEL, LLC 128   2002-10-16   
978-357 1 North Reading MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   
978-357 2 North Reading MA   892D ONVOY, LLC - MA 128   2022-04-17   
978-357 3 North Reading MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-03   
978-357 5 North Reading MA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2007-07-01   
978-357 7 North Reading MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-09-30   
978-357 8 North Reading MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-11   
978-357 9 North Reading MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-358 A Newburyport MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-358 0 Newburyport MA   624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-358 1 Newburyport MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-06-13   
978-358 2 Newburyport MA   7135 TC SYSTEMS, INC. 128      
978-358 3 Newburyport MA   892D ONVOY, LLC - MA 128   2023-05-01   
978-358 4 Newburyport MA   892D ONVOY, LLC - MA 128   2023-11-03   
978-358 5 Newburyport MA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2008-08-31   
978-358 6 Newburyport MA   5562 METROPCS, INC. 128   2022-03-02   
978-358 7 Newburyport MA   318J COMCAST IP PHONE, LLC 128   2006-11-03   
978-358 8 Newburyport MA   318J COMCAST IP PHONE, LLC 128   2006-11-03   
978-358 9 Newburyport MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2024-01-29   
978-359 A Topsfield MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-359 0 Topsfield MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-359 2 Topsfield MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-359 4 Topsfield MA   145J TERRA NOVA TELECOM INC. 128   2025-10-17   
978-359 5 Topsfield MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-359 6 Topsfield MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-359 7 Topsfield MA   145J TERRA NOVA TELECOM INC. 128   2025-02-13   
978-359 8 Topsfield MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
978-360 A Haverhill MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-02-09   
978-360 0 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-360 1 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-360 2 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-360 3 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-360 4 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-360 5 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-360 6 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-360 7 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-360 8 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-360 9 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-361 A Haverhill MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-361 0 Haverhill MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-361 1 Haverhill MA   892D ONVOY, LLC - MA 128   2023-08-09   
978-361 2 Haverhill MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-361 3 Haverhill MA   515J IP HORIZON LLC 128      
978-361 4 Haverhill MA   515J IP HORIZON LLC 128      
978-361 5 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2002-12-18   
978-361 6 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2002-12-18   
978-361 7 Haverhill MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2003-05-28   
978-361 8 Haverhill MA   515J IP HORIZON LLC 128      
978-361 9 Haverhill MA   892D ONVOY, LLC - MA 128      
978-362 A Billerica MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
978-362 0 Billerica MA   318J COMCAST IP PHONE, LLC 128   2012-06-08   
978-362 1 Billerica MA   318J COMCAST IP PHONE, LLC 128      
978-362 2 Billerica MA   318J COMCAST IP PHONE, LLC 128      
978-362 3 Billerica MA   318J COMCAST IP PHONE, 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 >>

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.