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: 388

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
561-388 A West Palm Beach FL MRMRFL095MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 46018      
561-388 0 West Palm Beach FL MRMRFL095MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 46018   2018-11-04   
561-388 1 West Palm Beach FL MRMRFL095MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 46018   2018-11-04   
561-388 2 West Palm Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018   2018-11-05   
561-388 3 West Palm Beach FL MRGTFLATG05  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 46018   2018-11-05   
561-388 4 West Palm Beach FL MRGTFLATG05  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 46018   2018-11-05   
561-388 5 West Palm Beach FL MRGTFLATG05  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 46018   2018-11-05   
561-388 6 West Palm Beach FL MRGTFLATG05  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 46018   2018-11-05   
561-388 7 West Palm Beach FL MRGTFLATG05  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 46018   2018-11-05   
561-388 8 West Palm Beach FL MIAMFL98DS6  937C ONVOY, LLC - FL 46018   2018-11-29   
561-388 9 West Palm Beach FL MRMRFL095MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 46018   2018-11-04   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.