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: 547

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-547 A Waltham MA CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
781-547 0 Waltham MA CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128      
781-547 1 Waltham MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
781-547 2 Waltham MA CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128      
781-547 3 Waltham MA CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128      
781-547 4 Waltham MA CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
781-547 5 Waltham MA CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
781-547 6 Waltham MA CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
781-547 7 Waltham MA CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
781-547 8 Waltham MA CMBRMAWA0MD  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
781-547 9 Waltham MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.