Local Calling Guide

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NPA: 978 [Rate centres in NPA 978] [Dial plan for NPA 978]

NXX: 552

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-552 A Lawrence MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-552 0 Lawrence MA   7135 TC SYSTEMS, INC. 128      
978-552 1 Lawrence MA   7135 TC SYSTEMS, INC. 128      
978-552 2 Lawrence MA   7135 TC SYSTEMS, INC. 128      
978-552 3 Lawrence MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2012-05-04   
978-552 4 Lawrence MA   7135 TC SYSTEMS, INC. 128      
978-552 5 Lawrence MA   7135 TC SYSTEMS, INC. 128      
978-552 6 Lawrence MA   829J PAETEC ITEL, LLC 128   2015-03-26   
978-552 7 Lawrence MA   7135 TC SYSTEMS, INC. 128      
978-552 8 Lawrence MA   5562 METROPCS, INC. 128   2008-12-15   
978-552 9 Lawrence MA   5562 METROPCS, INC. 128   2008-12-15   

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

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