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: 551

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-551 A Deerfield IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
224-551 0 Deerfield IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-551 1 Deerfield IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-551 2 Deerfield IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-551 3 Deerfield IL CHCGILMF8MD  6529 T-MOBILE USA, INC. 358      
224-551 4 Deerfield IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
224-551 5 Deerfield IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
224-551 6 Deerfield IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358      
224-551 7 Deerfield IL CHCGILWUJMD  073H TELNYX LLC 358      
224-551 8 Deerfield IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
224-551 9 Deerfield IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.