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: 224 [Rate centres in NPA 224] [Dial plan for NPA 224]

NXX: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-436 A Lake Forest IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-436 0 Lake Forest IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-436 1 Lake Forest IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-436 2 Lake Forest IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-436 3 Lake Forest IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-436 4 Lake Forest IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-436 5 Lake Forest IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-436 6 Lake Forest IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-436 7 Lake Forest IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-436 8 Lake Forest IL CHCGILCLXOX  516C AT&T CORP. 358      
224-436 9 Lake Forest IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.