Local Calling Guide

Area code/prefix search

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NPA: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 209

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-209 A Belmont MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-209 0 Belmont MA   7619 RCN TELECOM SERVICES, INC. - MA 128      
617-209 1 Belmont MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-14   
617-209 2 Belmont MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-03-25   
617-209 3 Belmont MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-04   
617-209 4 Belmont MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-01   
617-209 5 Belmont MA CHTWMABFDS2  966C DSCI, LLC 128   2005-04-10   
617-209 6 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2017-05-27   
617-209 7 Belmont MA BSTPMALLDS1  4536 XO MASSACHUSETTS, INC. 128   2006-11-10   
617-209 8 Belmont MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
617-209 9 Belmont MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-08-13   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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