Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 508 [Rate centres in NPA 508] [Dial plan for NPA 508]

NXX: 433

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-433 A Natick MA FRMNMAWADS0  7421 AT&T LOCAL 128      
508-433 0 Natick MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-21   
508-433 1 Natick MA BSTPMALLDS1  4536 XO MASSACHUSETTS, INC. 128   2007-05-05   
508-433 2 Natick MA FRMNMAWADS0  7421 AT&T LOCAL 128      
508-433 3 Natick MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2012-03-18   
508-433 4 Natick MA FRMNMAUNX0X  3370 CTC COMMUNICATIONS CORP. - MA 128   2007-06-19   
508-433 5 Natick MA NTCKMAECDS1  9102 VERIZON NEW ENGLAND INC. 128   2006-08-10   
508-433 6 Natick MA CMBRMAORDS0  7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128   2009-01-31   
508-433 7 Natick MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2013-01-11   
508-433 8 Natick MA   892D ONVOY, LLC - MA 128   2010-03-15   
508-433 9 Natick MA   892D ONVOY, LLC - MA 128   2010-03-15   

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

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