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: 351 [Rate centres in NPA 351] [Dial plan for NPA 351]

<< 1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
351-220 5 Acton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-01-17   
351-220 6 Acton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-01-17   
351-220 7 Acton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-01-17   
351-220 8 Acton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-01-17   
351-220 9 Acton MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-01-17   
351-221 A Lowell MA SOVLMAAB6MD  939H COMMIO, LLC 128      
351-221 0 Lowell MA   939H COMMIO, LLC 128   2021-11-20   
351-221 1 Lowell MA   939H COMMIO, LLC 128   2021-11-20   
351-221 2 Lowell MA   939H COMMIO, LLC 128   2021-11-20   
351-221 3 Lowell MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-09-24   
351-221 4 Lowell MA   939H COMMIO, LLC 128   2024-03-04   
351-221 5 Lowell MA   624H ONVOY SPECTRUM, LLC 128   2022-01-22   
351-221 6 Lowell MA   624H ONVOY SPECTRUM, LLC 128   2022-01-22   
351-221 7 Lowell MA   892D ONVOY, LLC - MA 128   2022-12-18   
351-221 8 Lowell MA   892D ONVOY, LLC - MA 128   2022-12-18   
351-221 9 Lowell MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2021-12-02   
351-222 A Merrimac MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
351-222 0 Merrimac MA   073H TELNYX LLC 128   2019-12-11   
351-222 1 Merrimac MA   892D ONVOY, LLC - MA 128   2020-02-26   
351-222 2 Merrimac MA   892D ONVOY, LLC - MA 128   2019-12-10   
351-222 3 Merrimac MA   892D ONVOY, LLC - MA 128   2019-12-10   
351-222 4 Merrimac MA   892D ONVOY, LLC - MA 128   2020-02-26   
351-222 5 Merrimac MA   892D ONVOY, LLC - MA 128   2020-02-26   
351-222 6 Merrimac MA   892D ONVOY, LLC - MA 128   2020-02-26   
351-222 7 Merrimac MA   892D ONVOY, LLC - MA 128   2020-02-26   
351-222 8 Merrimac MA   892D ONVOY, LLC - MA 128   2020-02-26   
351-222 9 Merrimac MA   892D ONVOY, LLC - MA 128   2020-02-26   
351-223 A Beverly MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
351-223 0 Beverly MA   892D ONVOY, LLC - MA 128   2023-08-17   
351-223 1 Beverly MA   624H ONVOY SPECTRUM, LLC 128   2022-01-15   
351-223 2 Beverly MA   624H ONVOY SPECTRUM, LLC 128   2022-01-15   
351-223 3 Beverly MA   892D ONVOY, LLC - MA 128   2021-08-14   
351-223 4 Beverly MA   892D ONVOY, LLC - MA 128   2021-08-14   
351-223 5 Beverly MA   892D ONVOY, LLC - MA 128   2023-07-02   
351-223 6 Beverly MA   892D ONVOY, LLC - MA 128   2024-03-01   
351-223 7 Beverly MA   892D ONVOY, LLC - MA 128   2024-03-01   
351-223 8 Beverly MA   318J COMCAST IP PHONE, LLC 128   2021-09-16   
351-223 9 Beverly MA   318J COMCAST IP PHONE, LLC 128   2021-09-16   
351-224 A Barre MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
351-224 1 Barre MA   490J DISH WIRELESS, LLC 128   2023-12-01   
351-224 2 Barre MA   624H ONVOY SPECTRUM, LLC 128   2021-09-19   
351-224 4 Barre MA   892D ONVOY, LLC - MA 128   2021-09-18   
351-224 5 Barre MA   892D ONVOY, LLC - MA 128   2021-09-18   
351-224 8 Barre MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-224 9 Barre MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-225 A Berlin MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
351-225 2 Berlin MA   624H ONVOY SPECTRUM, LLC 128   2021-11-14   
351-225 3 Berlin MA   624H ONVOY SPECTRUM, LLC 128   2021-11-14   
351-225 5 Berlin MA   892D ONVOY, LLC - MA 128   2021-09-23   
351-225 6 Berlin MA   892D ONVOY, LLC - MA 128   2021-09-23   
351-226 A Westford MA SOVLMAABJMD  598J FIVE9, INC. 128      
351-226 0 Westford MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2022-10-06   
351-226 1 Westford MA   598J FIVE9, INC. 128   2023-03-24   
351-226 2 Westford MA   516J TON80 COMMUNICATIONS, LLC 128   2022-04-01   
351-226 3 Westford MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-226 4 Westford MA   892D ONVOY, LLC - MA 128   2023-07-03   
351-226 5 Westford MA   624H ONVOY SPECTRUM, LLC 128   2022-01-16   
351-226 6 Westford MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2025-12-07   
351-226 7 Westford MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-226 8 Westford MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-226 9 Westford MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2021-12-19   
351-227 A Bolton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
351-227 2 Bolton MA   624H ONVOY SPECTRUM, LLC 128   2022-01-21   
351-227 3 Bolton MA   624H ONVOY SPECTRUM, LLC 128   2022-01-21   
351-227 4 Bolton MA   516J TON80 COMMUNICATIONS, LLC 128   2022-03-17   
351-227 5 Bolton MA   892D ONVOY, LLC - MA 128   2023-02-18   
351-227 7 Bolton MA   892D ONVOY, LLC - MA 128   2022-01-10   
351-228 A Andover MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
351-228 0 Andover MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2022-02-04   
351-228 1 Andover MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2022-06-15   
351-228 2 Andover MA   892D ONVOY, LLC - MA 128   2023-05-12   
351-228 3 Andover MA   939H COMMIO, LLC 128   2023-10-22   
351-228 4 Andover MA   892D ONVOY, LLC - MA 128   2023-07-02   
351-228 5 Andover MA   939H COMMIO, LLC 128   2023-10-22   
351-228 6 Andover MA   939H COMMIO, LLC 128   2023-10-22   
351-228 7 Andover MA   939H COMMIO, LLC 128   2023-10-22   
351-228 8 Andover MA   939H COMMIO, LLC 128   2023-10-22   
351-228 9 Andover MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2022-02-05   
351-229 A Amesbury MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
351-229 0 Amesbury MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2022-04-01   
351-229 1 Amesbury MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2022-04-02   
351-229 2 Amesbury MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-01-18   
351-229 3 Amesbury MA   490J DISH WIRELESS, LLC 128   2023-12-01   
351-229 4 Amesbury MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-10-18   
351-229 5 Amesbury MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-229 6 Amesbury MA   229C IDT AMERICA, CORP. - MA 128   2023-03-20   
351-229 7 Amesbury MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-229 8 Amesbury MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-04-17   
351-229 9 Amesbury MA   145J TERRA NOVA TELECOM INC. 128   2024-02-14   
351-230 A Leominster MA NRTNMAAACM4  5562 METROPCS, INC. 128   2024-01-09   
351-230 0 Leominster MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-22   
351-230 1 Leominster MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-11-15   
351-230 2 Leominster MA   892D ONVOY, LLC - MA 128   2023-07-23   
351-230 3 Leominster MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-09-07   
351-230 4 Leominster MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-22   
351-230 5 Leominster MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-11-01   
351-230 6 Leominster MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-22   
351-230 7 Leominster MA   892D ONVOY, LLC - MA 128   2023-11-03   
351-230 8 Leominster MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-09-06   
351-230 9 Leominster MA   5562 METROPCS, INC. 128   2022-04-04   

<< 1 2 3 4 5 6 7 8 9 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.