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: 345

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
872-345 A Chicago Zone 01-Calumet IL CHCGILWURMD  965H FRACTEL, LLC 358      
872-345 0 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-345 1 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-345 2 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-345 3 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-345 4 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358      
872-345 5 Chicago Zone 01-Calumet IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358      
872-345 6 Chicago Zone 01-Calumet IL CHCGILWURMD  965H FRACTEL, LLC 358      
872-345 7 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
872-345 8 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
872-345 9 Chicago Zone 01-Calumet IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 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.