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.

Switch: SWCHRTUNKNO

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
664-349 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-391 A Plymouth RT 395A DIGICEL (ST. LUCIA) LIMITED 830      
664-392 A Plymouth RT 395A DIGICEL (ST. LUCIA) LIMITED 830      
664-393 A Plymouth RT 395A DIGICEL (ST. LUCIA) LIMITED 830      
664-394 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-395 A Plymouth RT 395A DIGICEL (ST. LUCIA) LIMITED 830      
664-396 A Plymouth RT 395A DIGICEL (ST. LUCIA) LIMITED 830      
664-410 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-412 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-413 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-414 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-415 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-491 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-492 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-493 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-494 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-495 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-496 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-664 A Plymouth RT 8912 CABLE & WIRELESS (RT) 830      
664-857 A Plymouth RT 189J CONVERGE SOLUTIONS MONTSERRAT LTD. 830      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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