Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
857-822 8 Somerville MA 624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-822 9 Somerville MA 624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-833 A Winthrop MA 624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-833 7 Winthrop MA 624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-833 8 Winthrop MA 624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-833 9 Winthrop MA 624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-837 4 Charlestown MA 624H ONVOY SPECTRUM, LLC 128   2021-04-08   
857-847 A Dorchester MA 624H ONVOY SPECTRUM, LLC 128      
857-847 7 Dorchester MA 624H ONVOY SPECTRUM, LLC 128   2021-05-17   
857-857 A Newton MA 624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-857 7 Newton MA 624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-857 8 Newton MA 624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-857 9 Newton MA 624H ONVOY SPECTRUM, LLC 128   2025-01-03   
857-858 8 Newton MA 624H ONVOY SPECTRUM, LLC 128   2021-04-11   
857-867 A Brookline MA 624H ONVOY SPECTRUM, LLC 128      
857-867 3 Brookline MA 624H ONVOY SPECTRUM, LLC 128   2022-01-22   
857-867 4 Brookline MA 624H ONVOY SPECTRUM, LLC 128   2022-01-22   
857-867 8 Brookline MA 624H ONVOY SPECTRUM, LLC 128   2021-05-17   
857-877 8 Brighton MA 624H ONVOY SPECTRUM, LLC 128   2024-12-06   
857-887 A Jamaica Plain MA 624H ONVOY SPECTRUM, LLC 128      
857-887 5 Jamaica Plain MA 624H ONVOY SPECTRUM, LLC 128   2021-02-23   
857-887 6 Jamaica Plain MA 624H ONVOY SPECTRUM, LLC 128   2021-02-23   
857-887 7 Jamaica Plain MA 624H ONVOY SPECTRUM, LLC 128   2021-02-23   
857-887 8 Jamaica Plain MA 624H ONVOY SPECTRUM, LLC 128   2021-02-19   
857-995 2 Somerville MA 624H ONVOY SPECTRUM, LLC 128   2021-04-12   
978-203 8 Wilmington MA 624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-222 5 North Reading MA 624H ONVOY SPECTRUM, LLC 128   2021-04-11   
978-229 1 Wilmington MA 624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-245 9 Concord MA 624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-255 0 Newburyport MA 624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-277 0 Templeton MA 624H ONVOY SPECTRUM, LLC 128   2021-11-14   
978-277 2 Templeton MA 624H ONVOY SPECTRUM, LLC 128   2021-11-14   
978-285 9 Petersham MA 624H ONVOY SPECTRUM, LLC 128   2021-11-14   
978-301 0 Petersham MA 624H ONVOY SPECTRUM, LLC 128   2021-11-14   
978-358 0 Newburyport MA 624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-412 0 Ipswich MA 624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-416 5 Lawrence MA 624H ONVOY SPECTRUM, LLC 128   2022-01-15   
978-432 3 Rowley MA 624H ONVOY SPECTRUM, LLC 128   2021-04-12   
978-440 4 Sudbury MA 624H ONVOY SPECTRUM, LLC 128   2021-04-15   
978-445 8 Sudbury MA 624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-450 3 Maynard MA 624H ONVOY SPECTRUM, LLC 128   2021-04-10   
978-450 8 Maynard MA 624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-450 9 Maynard MA 624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-467 8 Westford MA 624H ONVOY SPECTRUM, LLC 128   2021-04-15   
978-482 1 Andover MA 624H ONVOY SPECTRUM, LLC 128   2021-04-03   
978-482 9 Andover MA 624H ONVOY SPECTRUM, LLC 128   2021-12-04   
978-487 0 Ayer MA 624H ONVOY SPECTRUM, LLC 128   2021-11-14   
978-487 8 Ayer MA 624H ONVOY SPECTRUM, LLC 128   2021-11-14   
978-507 7 Sudbury MA 624H ONVOY SPECTRUM, LLC 128   2021-09-03   
978-520 5 Wilmington MA 624H ONVOY SPECTRUM, LLC 128   2021-04-15   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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