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: 610 [Rate centres in NPA 610] [Dial plan for NPA 610]

NXX: 990

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-990 A Philadelphia Suburban Zone 11 PA PHLAPAFGGT8  3806 CORE COMMUNICATIONS, INC. - PA 228      
610-990 0 Philadelphia Suburban Zone 11 PA PHLAPAFGGT8  3806 CORE COMMUNICATIONS, INC. - PA 228      
610-990 1 Philadelphia Suburban Zone 11 PA WNRTPAAHCMA  5562 METROPCS, INC. 228   2009-08-29   
610-990 2 Philadelphia Suburban Zone 11 PA WNRTPAAHCMA  5562 METROPCS, INC. 228   2010-01-28   
610-990 3 Philadelphia Suburban Zone 11 PA PHLAPAFGD1S  283E YMAX COMMUNICATIONS CORP. - PA 228   2010-04-26   
610-990 4 Philadelphia Suburban Zone 11 PA PHLAPAMK17Z  784E BLOCK LINE SYSTEMS, LLC - PA 228   2008-10-16   
610-990 5 Philadelphia Suburban Zone 11 PA PHLAPAFGD1S  283E YMAX COMMUNICATIONS CORP. - PA 228   2009-02-11   
610-990 6 Philadelphia Suburban Zone 11 PA PHLAPAFGD1S  283E YMAX COMMUNICATIONS CORP. - PA 228   2009-02-11   
610-990 7 Philadelphia Suburban Zone 11 PA PHLAPAFGD1S  283E YMAX COMMUNICATIONS CORP. - PA 228   2009-02-11   
610-990 8 Philadelphia Suburban Zone 11 PA PHLAPAAZDS2  7309 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 228   2007-05-07   
610-990 9 Philadelphia Suburban Zone 11 PA WNRTPAAHCMA  5562 METROPCS, INC. 228   2010-06-04   

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.