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.

Switch: MRBOMAFZDS0

<< 1 2 3 4 5 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
978-227 A Leominster MA 7135 TC SYSTEMS, INC. 128      
978-227 0 Leominster MA 7135 TC SYSTEMS, INC. 128      
978-241 A Haverhill MA 7135 TC SYSTEMS, INC. 128      
978-241 1 Haverhill MA 7135 TC SYSTEMS, INC. 128      
978-241 3 Haverhill MA 7135 TC SYSTEMS, INC. 128      
978-303 6 Westford MA 7135 TC SYSTEMS, INC. 128   2002-12-21   
978-310 A Hudson MA 7135 TC SYSTEMS, INC. 128      
978-310 8 Hudson MA 7135 TC SYSTEMS, INC. 128      
978-313 A Billerica MA 7135 TC SYSTEMS, INC. 128      
978-313 0 Billerica MA 7135 TC SYSTEMS, INC. 128      
978-313 1 Billerica MA 7135 TC SYSTEMS, INC. 128      
978-313 2 Billerica MA 7135 TC SYSTEMS, INC. 128      
978-313 3 Billerica MA 7135 TC SYSTEMS, INC. 128      
978-313 6 Billerica MA 7135 TC SYSTEMS, INC. 128   2012-03-19   
978-313 7 Billerica MA 7135 TC SYSTEMS, INC. 128   2012-12-06   
978-313 8 Billerica MA 7135 TC SYSTEMS, INC. 128   2013-10-01   
978-320 2 Westford MA 7135 TC SYSTEMS, INC. 128   2013-04-26   
978-326 A Peabody MA 7135 TC SYSTEMS, INC. 128      
978-326 0 Peabody MA 7135 TC SYSTEMS, INC. 128      
978-326 1 Peabody MA 7135 TC SYSTEMS, INC. 128      
978-326 2 Peabody MA 7135 TC SYSTEMS, INC. 128      
978-326 3 Peabody MA 7135 TC SYSTEMS, INC. 128      
978-326 4 Peabody MA 7135 TC SYSTEMS, INC. 128      
978-326 5 Peabody MA 7135 TC SYSTEMS, INC. 128      
978-326 6 Peabody MA 7135 TC SYSTEMS, INC. 128      
978-328 A Lowell MA 7135 TC SYSTEMS, INC. 128      
978-328 1 Lowell MA 7135 TC SYSTEMS, INC. 128      
978-358 A Newburyport MA 7135 TC SYSTEMS, INC. 128      
978-358 2 Newburyport MA 7135 TC SYSTEMS, INC. 128      
978-384 A Merrimac MA 7135 TC SYSTEMS, INC. 128      
978-384 9 Merrimac MA 7135 TC SYSTEMS, INC. 128      
978-402 A Concord MA 7135 TC SYSTEMS, INC. 128      
978-402 0 Concord MA 7135 TC SYSTEMS, INC. 128      
978-402 1 Concord MA 7135 TC SYSTEMS, INC. 128      
978-402 2 Concord MA 7135 TC SYSTEMS, INC. 128      
978-402 3 Concord MA 7135 TC SYSTEMS, INC. 128      
978-421 A Lowell MA 7135 TC SYSTEMS, INC. 128      
978-421 0 Lowell MA 7135 TC SYSTEMS, INC. 128      
978-421 1 Lowell MA 7135 TC SYSTEMS, INC. 128      
978-421 2 Lowell MA 7135 TC SYSTEMS, INC. 128      
978-421 8 Lowell MA 7135 TC SYSTEMS, INC. 128      
978-421 9 Lowell MA 7135 TC SYSTEMS, INC. 128      
978-424 A Fitchburg MA 7135 TC SYSTEMS, INC. 128      
978-424 0 Fitchburg MA 7135 TC SYSTEMS, INC. 128      
978-424 2 Fitchburg MA 7135 TC SYSTEMS, INC. 128      
978-424 9 Fitchburg MA 7135 TC SYSTEMS, INC. 128      
978-435 6 Billerica MA 7135 TC SYSTEMS, INC. 128   2013-02-11   
978-449 2 Groton MA 7135 TC SYSTEMS, INC. 128      
978-449 3 Groton MA 7135 TC SYSTEMS, INC. 128      
978-487 A Ayer MA 7135 TC SYSTEMS, INC. 128      

<< 1 2 3 4 5 >>

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.