Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 781 [Rate centres in NPA 781] [Dial plan for NPA 781]

NXX: 577

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-577 A Waltham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-577 0 Waltham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-577 1 Waltham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-577 2 Waltham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-577 3 Waltham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-04   
781-577 4 Waltham MA BSTPMALLDS1  4536 XO MASSACHUSETS, INC. 128   2011-12-19   
781-577 5 Waltham MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128   2007-06-29   
781-577 6 Waltham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-577 7 Waltham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-577 8 Waltham MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2021-11-23   
781-577 9 Waltham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      

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

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