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: 503

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
561-503 A Boynton Beach FL MIATFLADDS2  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 46018      
561-503 0 Boynton Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018      
561-503 1 Boynton Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018      
561-503 2 Boynton Beach FL MIATFLADDS2  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 46018      
561-503 3 Boynton Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018      
561-503 4 Boynton Beach FL MIATFLADDS2  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 46018      
561-503 5 Boynton Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018      
561-503 6 Boynton Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018      
561-503 7 Boynton Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018      
561-503 8 Boynton Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018      
561-503 9 Boynton Beach FL MRMRFL095MD  5562 METROPCS, INC. 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.