Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 270

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-270 A Chelsea MA NRTNMAAACM4  5562 METROPCS, INC. 128      
617-270 0 Chelsea MA NRTNMAAACM4  5562 METROPCS, INC. 128      
617-270 1 Chelsea MA NRTNMAAACM4  5562 METROPCS, INC. 128      
617-270 2 Chelsea MA   145J TERRA NOVA TELECOM INC. 128      
617-270 3 Chelsea MA NRTNMAAACM4  5562 METROPCS, INC. 128      
617-270 4 Chelsea MA NRTNMAAACM4  5562 METROPCS, INC. 128      
617-270 5 Chelsea MA NRTNMAAACM4  5562 METROPCS, INC. 128      
617-270 6 Chelsea MA NRTNMAAACM4  5562 METROPCS, INC. 128      
617-270 7 Chelsea MA NRTNMAAACM4  5562 METROPCS, INC. 128      
617-270 8 Chelsea MA NRTNMAAACM4  5562 METROPCS, INC. 128      
617-270 9 Chelsea MA SOVLMAABBMD  145J TERRA NOVA TELECOM INC. 128      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.