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: 837

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
561-837 A West Palm Beach FL WPBHFLANDS0  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 46018   2021-02-01   
561-837 0 West Palm Beach FL JPTRFLGNCM1  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 46018   2020-07-31   
561-837 1 West Palm Beach FL JPTRFLGNCM1  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 46018   2017-07-17   
561-837 2 West Palm Beach FL WPBHFLANDS0  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 46018      
561-837 3 West Palm Beach FL MIAQFL60DS3  594D YMAX COMMUNICATIONS CORP. - FL 46018   2009-09-16   
561-837 4 West Palm Beach FL WPBHFLANDS0  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 46018      
561-837 5 West Palm Beach FL WPBHFLANDS0  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 46018      
561-837 6 West Palm Beach FL WPBHFLANDS0  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 46018      
561-837 7 West Palm Beach FL JPTRFLGNCM1  6502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 46018   2018-01-04   
561-837 8 West Palm Beach FL WPBHFLANDS0  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 46018      
561-837 9 West Palm Beach FL WPBHFLANDS0  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 46018      

Last updated: Sun, 28 Feb 2021 19:06:05 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.