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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-203 A Wilmington MA   829J PAETEC ITEL, LLC 128      
978-203 0 Wilmington MA   318J COMCAST IP PHONE, LLC 128   2005-04-21   
978-203 1 Wilmington MA   829J PAETEC ITEL, LLC 128      
978-203 2 Wilmington MA   829J PAETEC ITEL, LLC 128      
978-203 3 Wilmington MA   892D ONVOY, LLC - MA 128   2023-07-23   
978-203 4 Wilmington MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-19   
978-203 5 Wilmington MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-19   
978-203 6 Wilmington MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-31   
978-203 8 Wilmington MA   624H ONVOY SPECTRUM, LLC 128   2021-11-27   
978-203 9 Wilmington MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-31   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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