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: 530

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-530 A Waltham MA CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
781-530 0 Waltham MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
781-530 1 Waltham MA CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
781-530 2 Waltham MA CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
781-530 3 Waltham MA CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
781-530 4 Waltham MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-530 5 Waltham MA CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
781-530 6 Waltham MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
781-530 7 Waltham MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
781-530 8 Waltham MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
781-530 9 Waltham MA CMBRMA01DS5  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.