Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 978 [Rate centres in NPA 978] [Dial plan for NPA 978]

NXX: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-850 A Westford MA SOVLMAABKMD  616J LEAP TELECOM, LLC 128      
978-850 0 Westford MA   515J IP HORIZON LLC 128   2017-07-06   
978-850 1 Westford MA   515J IP HORIZON LLC 128   2015-03-26   
978-850 2 Westford MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2015-03-02   
978-850 3 Westford MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2019-07-01   
978-850 4 Westford MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2014-12-05   
978-850 5 Westford MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-14   
978-850 6 Westford MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-14   
978-850 8 Westford MA SOVLMAABKMD  616J LEAP TELECOM, LLC 128   2023-03-11   
978-850 9 Westford MA   145J TERRA NOVA TELECOM INC. 128   2023-11-16   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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