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: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-233 A Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358      
224-233 0 Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-20   
224-233 1 Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-20   
224-233 2 Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-20   
224-233 3 Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-20   
224-233 4 Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-20   
224-233 5 Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-20   
224-233 6 Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-20   
224-233 7 Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-20   
224-233 8 Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-20   
224-233 9 Skokie IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2006-05-20   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.