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.

Northboro, MA

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
774-267 6 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2022-10-19   
774-267 7 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-05-12   
774-267 8 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-05-12   
774-267 9 NRTNMAAACM4  5562 METROPCS, INC. 128      
774-827 A   829J PAETEC ITEL, LLC 128      
774-827 0   829J PAETEC ITEL, LLC 128      
774-827 1   829J PAETEC ITEL, LLC 128      
774-827 2   829J PAETEC ITEL, LLC 128      
774-827 3   829J PAETEC ITEL, LLC 128      
774-827 4   829J PAETEC ITEL, LLC 128      
774-827 5   829J PAETEC ITEL, LLC 128      
774-827 6   829J PAETEC ITEL, LLC 128      
774-827 7   2899 BROADVIEW NETWORKS, INC. - MA 128      
774-827 8   2899 BROADVIEW NETWORKS, INC. - MA 128      
774-827 9   829J PAETEC ITEL, LLC 128   2001-06-26   

<< 1 2

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.