Local Calling Guide

Area code/prefix search

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

NXX: 229

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-229 A Wilmington MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-229 0 Wilmington MA   892D ONVOY, LLC - MA 128   2023-09-11   
978-229 1 Wilmington MA   624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-229 2 Wilmington MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-229 5 Wilmington MA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2005-04-10   
978-229 6 Wilmington MA   490J DISH WIRELESS, LLC 128   2023-06-05   
978-229 8 Wilmington MA   145J TERRA NOVA TELECOM INC. 128   2024-08-09   

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

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