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.

Somerville, MA

<< 1 2 3 4 5

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
857-523 8 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-523 9 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-575 A BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-575 0 BSTPMALLOMD  073H TELNYX LLC 128   2021-06-04   
857-575 1 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
857-575 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
857-575 3 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-13   
857-575 4 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-13   
857-575 5 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-13   
857-575 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-13   
857-575 7 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-03   
857-575 8 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
857-575 9 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
857-995 A BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-995 0 SOVLMACEDS0  9102 VERIZON NEW ENGLAND INC. 128   2009-04-23   
857-995 1 CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128   2001-09-24   
857-995 2 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-04-12   
857-995 3 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2021-11-14   
857-995 4 SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2021-10-06   
857-995 5 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2022-11-20   
857-995 6 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2016-07-11   
857-995 7 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2020-02-29   
857-995 8 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-30   
857-995 9 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-30   
857-997 A CMBRMABEQMD  321J HD CARRIER LLC 128      
857-997 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-997 1   321J HD CARRIER LLC 128   2016-09-03   
857-997 2 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-997 3   515J IP HORIZON LLC 128      
857-997 4 CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2017-08-18   
857-997 5 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-11   
857-997 6 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-11   
857-997 7 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-11   
857-997 8 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2017-11-18   
857-997 9 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-09-14   

<< 1 2 3 4 5

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.