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: 872 [Rate centres in NPA 872] [Dial plan for NPA 872]

NXX: 873

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
872-873 A Chicago Zone 11-O'Hare IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 0 Chicago Zone 11-O'Hare IL CHCGIL245MD  073H TELNYX LLC 358      
872-873 1 Chicago Zone 11-O'Hare IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 2 Chicago Zone 11-O'Hare IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 3 Chicago Zone 11-O'Hare IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 4 Chicago Zone 11-O'Hare IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 5 Chicago Zone 11-O'Hare IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 6 Chicago Zone 11-O'Hare IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358      
872-873 7 Chicago Zone 11-O'Hare IL CHCGILIDXEX  553J WHITESKY COMMUNICATIONS, LLC 358      
872-873 8 Chicago Zone 11-O'Hare IL CHCGIL245MD  073H TELNYX LLC 358      
872-873 9 Chicago Zone 11-O'Hare IL CHCGIL24XMD  495J STRATUS NETWORKS 358      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.