Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 508 [Rate centres in NPA 508] [Dial plan for NPA 508]

NXX: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-597 A Marlboro MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
508-597 0 Marlboro MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
508-597 1 Marlboro MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
508-597 2 Marlboro MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
508-597 3 Marlboro MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
508-597 4 Marlboro MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
508-597 5 Marlboro MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2005-07-30   
508-597 6 Marlboro MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2005-07-30   
508-597 7 Marlboro MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2005-07-30   
508-597 8 Marlboro MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2005-07-30   
508-597 9 Marlboro MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2005-07-30   

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

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