Local Calling Guide

Area code/prefix search

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NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

NXX: 773

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-773 A Jamaica Plain MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-773 0 Jamaica Plain MA   073H TELNYX LLC 128   2017-04-24   
857-773 1 Jamaica Plain MA   892D ONVOY, LLC - MA 128   2017-05-10   
857-773 2 Jamaica Plain MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2018-04-19   
857-773 3 Jamaica Plain MA   5562 METROPCS, INC. 128   2017-09-06   
857-773 4 Jamaica Plain MA   892D ONVOY, LLC - MA 128   2023-07-08   
857-773 6 Jamaica Plain MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2019-05-31   
857-773 7 Jamaica Plain MA   5562 METROPCS, INC. 128   2017-05-19   
857-773 8 Jamaica Plain MA   515J IP HORIZON LLC 128   2017-07-06   
857-773 9 Jamaica Plain MA   5562 METROPCS, INC. 128   2016-10-27   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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