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: 251

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-251 A Marlboro MA   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128      
508-251 0 Marlboro MA NWTNMAWAVMD  318J COMCAST IP PHONE LLC 128      
508-251 1 Marlboro MA NWTNMAWAVMD  318J COMCAST IP PHONE LLC 128      
508-251 2 Marlboro MA NWTNMAWAVMD  318J COMCAST IP PHONE LLC 128      
508-251 3 Marlboro MA CMBRMAMQDS0  4536 XO MASSACHUSETS, INC. 128   2006-10-27   
508-251 4 Marlboro MA CMBRMAMQDS0  4536 XO MASSACHUSETS, INC. 128   2008-02-18   
508-251 5 Marlboro MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-04-07   
508-251 6 Marlboro MA CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2008-09-30   
508-251 7 Marlboro MA BSTPMALLDS1  4536 XO MASSACHUSETS, INC. 128   2006-10-27   
508-251 8 Marlboro MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-11-19   
508-251 9 Marlboro MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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