Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 336

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-336 A Chelsea MA   829J PAETEC ITEL, LLC 128      
617-336 0 Chelsea MA   829J PAETEC ITEL, LLC 128      
617-336 1 Chelsea MA   829J PAETEC ITEL, LLC 128      
617-336 2 Chelsea MA   829J PAETEC ITEL, LLC 128      
617-336 3 Chelsea MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2005-12-03   
617-336 4 Chelsea MA   829J PAETEC ITEL, LLC 128      
617-336 5 Chelsea MA   829J PAETEC ITEL, LLC 128      
617-336 6 Chelsea MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-03-06   
617-336 7 Chelsea MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2005-12-03   
617-336 8 Chelsea MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2017-10-08   
617-336 9 Chelsea MA   829J PAETEC ITEL, LLC 128      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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