Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

NXX: 267

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-267 A Milton MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-267 0 Milton MA   5562 METROPCS, INC. 128   2013-08-30   
857-267 1 Milton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-06-15   
857-267 2 Milton MA   318J COMCAST IP PHONE, LLC 128   2013-09-14   
857-267 3 Milton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-06-15   
857-267 4 Milton MA   318J COMCAST IP PHONE, LLC 128   2014-01-19   
857-267 5 Milton MA   892D ONVOY, LLC - MA 128   2014-09-13   
857-267 6 Milton MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-02-23   
857-267 7 Milton MA   508J CENTURYLINK COMMUNICATIONS, LLC 128   2014-04-24   
857-267 8 Milton MA   892D ONVOY, LLC - MA 128   2014-12-30   
857-267 9 Milton MA   892D ONVOY, LLC - MA 128   2014-12-30   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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