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: 774 [Rate centres in NPA 774] [Dial plan for NPA 774]

NXX: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-374 A Marlboro MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-374 0 Marlboro MA   966G LOCAL ACCESS LLC - MA 128   2019-04-26   
774-374 1 Marlboro MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2019-06-19   
774-374 2 Marlboro MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2018-09-23   
774-374 3 Marlboro MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2020-03-18   
774-374 4 Marlboro MA   293C CHARTER FIBERLINK MA-CCO, LLC - MA 128   2020-02-14   
774-374 5 Marlboro MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128   2019-11-25   
774-374 6 Marlboro MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128   2019-11-25   
774-374 7 Marlboro MA   4084 PAETEC COMMUNICATIONS, INC. - MA 128   2019-11-25   
774-374 8 Marlboro MA   892D ONVOY, LLC - MA 128   2019-07-01   
774-374 9 Marlboro MA   892D ONVOY, LLC - MA 128   2019-07-01   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.