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: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 721

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-721 A Rock Island IL RCISILEG0MD  6529 T-MOBILE USA, INC. 634      
309-721 0 Rock Island IL RCISILEG1MD  5562 METROPCS, INC. 634   2006-10-20   
309-721 1 Rock Island IL RCISILEG1MD  5562 METROPCS, INC. 634      
309-721 2 Rock Island IL RCISILEG1MD  5562 METROPCS, INC. 634   2005-03-25   
309-721 3 Rock Island IL RCISILEG1MD  5562 METROPCS, INC. 634      
309-721 4 Rock Island IL RCISILEG1MD  5562 METROPCS, INC. 634      
309-721 5 Rock Island IL RCISILEG1MD  5562 METROPCS, INC. 634      
309-721 6 Rock Island IL RCISILEG1MD  5562 METROPCS, INC. 634      
309-721 7 Rock Island IL RCISILEG1MD  5562 METROPCS, INC. 634      
309-721 8 Rock Island IL RCISILEG1MD  5562 METROPCS, INC. 634      
309-721 9 Rock Island IL RCISILEG0MD  6529 T-MOBILE USA, INC. 634      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.