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: 561 [Rate centres in NPA 561] [Dial plan for NPA 561]

NXX: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
561-231 A West Palm Beach FL MRMRFL095MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 46018      
561-231 0 West Palm Beach FL MIASFL680MD  982E BANDWIDTH.COM CLEC, LLC - FL 46018      
561-231 1 West Palm Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018      
561-231 2 West Palm Beach FL MIASFL680MD  982E BANDWIDTH.COM CLEC, LLC - FL 46018      
561-231 3 West Palm Beach FL MRMRFL095MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 46018      
561-231 4 West Palm Beach FL   6889 OMNIPOINT MIAMI E LICENSE, LLC 46018      
561-231 5 West Palm Beach FL MIAUFLWSDS2  902E PEERLESS NETWORK OF FLORIDA, LLC - FL 46018      
561-231 6 West Palm Beach FL MIAUFLWSDS2  902E PEERLESS NETWORK OF FLORIDA, LLC - FL 46018      
561-231 7 West Palm Beach FL MIAMFL98DS6  937C ONVOY, LLC - FL 46018      
561-231 8 West Palm Beach FL MIAMFL98DS6  937C ONVOY, LLC - FL 46018      
561-231 9 West Palm Beach FL MIAMFL98DS6  937C ONVOY, LLC - FL 46018      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.