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: 770

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-770 A Worcester MA WRCSMACEDS3  9102 VERIZON NEW ENGLAND INC. 128      
508-770 0 Worcester MA   9102 VERIZON NEW ENGLAND INC. 128      
508-770 1 Worcester MA   9102 VERIZON NEW ENGLAND INC. 128      
508-770 2 Worcester MA   939H COMMIO, LLC 128   2021-07-15   
508-770 3 Worcester MA   624H ONVOY SPECTRUM, LLC 128   2021-02-24   
508-770 4 Worcester MA   9102 VERIZON NEW ENGLAND INC. 128      
508-770 5 Worcester MA   624H ONVOY SPECTRUM, LLC 128   2021-02-24   
508-770 6 Worcester MA   892D ONVOY, LLC - MA 128   2021-08-13   
508-770 7 Worcester MA   9102 VERIZON NEW ENGLAND INC. 128      
508-770 8 Worcester MA   9102 VERIZON NEW ENGLAND INC. 128      
508-770 9 Worcester MA   9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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