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: 773 [Rate centres in NPA 773] [Dial plan for NPA 773]

NXX: 836

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-836 A Chicago Zone 05-Merrimac IL CHCGILMEDS0  9329 ILLINOIS BELL TEL CO 358      
773-836 0 Chicago Zone 05-Merrimac IL CHCGIL24DS6  224C ONVOY, LLC 358      
773-836 1 Chicago Zone 05-Merrimac IL CHCGILMEDS0  9329 ILLINOIS BELL TEL CO 358      
773-836 2 Chicago Zone 05-Merrimac IL CHCGIL24DS6  224C ONVOY, LLC 358      
773-836 3 Chicago Zone 05-Merrimac IL CHCGILMEDS0  9329 ILLINOIS BELL TEL CO 358      
773-836 4 Chicago Zone 05-Merrimac IL   624H ONVOY SPECTRUM, LLC 358      
773-836 5 Chicago Zone 05-Merrimac IL CHCGILMEDS0  9329 ILLINOIS BELL TEL CO 358      
773-836 6 Chicago Zone 05-Merrimac IL   400G CLEAR RATE COMMUNICATIONS, INC. - IL 358      
773-836 7 Chicago Zone 05-Merrimac IL CHCGILMEDS0  9329 ILLINOIS BELL TEL CO 358      
773-836 8 Chicago Zone 05-Merrimac IL CHCGILMEDS0  9329 ILLINOIS BELL TEL CO 358      
773-836 9 Chicago Zone 05-Merrimac IL CHCGILMEDS0  9329 ILLINOIS BELL TEL CO 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.