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: 323

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-323 A Lowell MA LWLLMAAPPSA  9102 VERIZON NEW ENGLAND INC. 128      
978-323 0 Lowell MA   9102 VERIZON NEW ENGLAND INC. 128      
978-323 1 Lowell MA   892D ONVOY, LLC - MA 128   2011-03-13   
978-323 2 Lowell MA   9102 VERIZON NEW ENGLAND INC. 128      
978-323 3 Lowell MA   9102 VERIZON NEW ENGLAND INC. 128      
978-323 4 Lowell MA   9102 VERIZON NEW ENGLAND INC. 128      
978-323 5 Lowell MA   9102 VERIZON NEW ENGLAND INC. 128      
978-323 6 Lowell MA   9102 VERIZON NEW ENGLAND INC. 128      
978-323 7 Lowell MA   9102 VERIZON NEW ENGLAND INC. 128      
978-323 8 Lowell MA   9102 VERIZON NEW ENGLAND INC. 128      
978-323 9 Lowell MA   318J COMCAST IP PHONE, LLC 128   2005-06-17   

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

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