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: 372

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-372 A Mansfield MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
774-372 0 Mansfield MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2021-07-30   
774-372 1 Mansfield MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2021-01-02   
774-372 2 Mansfield MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2020-12-31   
774-372 3 Mansfield MA BSTPMALLZMD  506J TWILIO INTERNATIONAL, INC. 128   2020-12-19   
774-372 4 Mansfield MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2020-12-31   
774-372 5 Mansfield MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-03-11   
774-372 6 Mansfield MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-13   
774-372 7 Mansfield MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-01-15   
774-372 8 Mansfield MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-06-20   
774-372 9 Mansfield MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2019-11-11   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.