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: 781 [Rate centres in NPA 781] [Dial plan for NPA 781]

NXX: 464

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-464 A Waltham MA CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
781-464 0 Waltham MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
781-464 1 Waltham MA   7135 TC SYSTEMS, INC. 128      
781-464 2 Waltham MA   7135 TC SYSTEMS, INC. 128      
781-464 3 Waltham MA   7135 TC SYSTEMS, INC. 128      
781-464 4 Waltham MA   7135 TC SYSTEMS, INC. 128      
781-464 5 Waltham MA   7135 TC SYSTEMS, INC. 128      
781-464 6 Waltham MA   7135 TC SYSTEMS, INC. 128      
781-464 7 Waltham MA   7135 TC SYSTEMS, INC. 128      
781-464 8 Waltham MA   7135 TC SYSTEMS, INC. 128      
781-464 9 Waltham MA   7135 TC SYSTEMS, INC. 128      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.