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: 589

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-589 A Westford MA WSFRMADERP0  9102 VERIZON NEW ENGLAND INC. 128      
978-589 0 Westford MA   9102 VERIZON NEW ENGLAND INC. 128      
978-589 1 Westford MA   9102 VERIZON NEW ENGLAND INC. 128      
978-589 2 Westford MA   892D ONVOY, LLC - MA 128   2023-11-03   
978-589 3 Westford MA   9102 VERIZON NEW ENGLAND INC. 128      
978-589 4 Westford MA   9102 VERIZON NEW ENGLAND INC. 128      
978-589 5 Westford MA   9102 VERIZON NEW ENGLAND INC. 128      
978-589 6 Westford MA   9102 VERIZON NEW ENGLAND INC. 128      
978-589 7 Westford MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2023-10-19   
978-589 8 Westford MA   9102 VERIZON NEW ENGLAND INC. 128      
978-589 9 Westford MA   9102 VERIZON NEW ENGLAND INC. 128      

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

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