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

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
508-382 A Marlboro MA 7135 TC SYSTEMS, INC. 128      
508-467 A Marlboro MA 7135 TC SYSTEMS, INC. 128      
508-804 A Marlboro MA 7135 TC SYSTEMS, INC. 128      
508-903 A Natick MA 7135 TC SYSTEMS, INC. 128      
508-925 A Shrewsbury MA 7135 TC SYSTEMS, INC. 128      
508-926 A Worcester MA 7135 TC SYSTEMS, INC. 128      
978-218 A Sudbury MA 7135 TC SYSTEMS, INC. 128      
978-226 A Tyngsboro MA 7135 TC SYSTEMS, INC. 128      
978-227 A Leominster MA 7135 TC SYSTEMS, INC. 128      
978-241 A Haverhill MA 7135 TC SYSTEMS, INC. 128      
978-310 A Hudson MA 7135 TC SYSTEMS, INC. 128      
978-313 A Billerica MA 7135 TC SYSTEMS, INC. 128      
978-326 A Peabody MA 7135 TC SYSTEMS, INC. 128      
978-328 A Lowell MA 7135 TC SYSTEMS, INC. 128      
978-358 A Newburyport MA 7135 TC SYSTEMS, INC. 128      
978-384 A Merrimac MA 7135 TC SYSTEMS, INC. 128      
978-402 A Concord MA 7135 TC SYSTEMS, INC. 128      
978-421 A Lowell MA 7135 TC SYSTEMS, INC. 128      
978-424 A Fitchburg MA 7135 TC SYSTEMS, INC. 128      
978-487 A Ayer MA 7135 TC SYSTEMS, INC. 128      
978-498 A Salem MA 7135 TC SYSTEMS, INC. 128      
978-523 A Townsend MA 7135 TC SYSTEMS, INC. 128      
978-539 A Danvers MA 7135 TC SYSTEMS, INC. 128      
978-552 A Lawrence MA 7135 TC SYSTEMS, INC. 128      
978-559 A Gloucester MA 7135 TC SYSTEMS, INC. 128      
978-570 A Wilmington MA 7135 TC SYSTEMS, INC. 128      
978-614 A Lowell MA 7135 TC SYSTEMS, INC. 128      
978-698 A Littleton MA 7135 TC SYSTEMS, INC. 128      
978-720 A Beverly MA 7135 TC SYSTEMS, INC. 128      
978-730 A Gardner MA 7135 TC SYSTEMS, INC. 128      
978-732 A Groton MA 7135 TC SYSTEMS, INC. 128      
978-765 A Clinton MA 7135 TC SYSTEMS, INC. 128      
978-778 A Beverly MA 7135 TC SYSTEMS, INC. 128      
978-792 A Amesbury MA 7135 TC SYSTEMS, INC. 128      
978-795 A Acton MA 7135 TC SYSTEMS, INC. 128      
978-805 A Lowell MA 7135 TC SYSTEMS, INC. 128      
978-889 A Maynard MA 7135 TC SYSTEMS, INC. 128      
978-933 A Andover MA 7135 TC SYSTEMS, INC. 128      
978-942 A Lowell MA 7135 TC SYSTEMS, INC. 128      
978-955 A Lowell MA 7135 TC SYSTEMS, INC. 128      

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

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