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: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 620

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-620 A Hamburg IL STLSMOWQDS2  224C ONVOY, LLC 520      
618-620 0 Hamburg IL STLSMOWQ8MD  073H TELNYX LLC 520   2020-10-03   
618-620 1 Hamburg IL STLSMOWQDS2  224C ONVOY, LLC 520   2020-07-25   
618-620 2 Hamburg IL STLSMOWQDS2  224C ONVOY, LLC 520   2021-04-05   
618-620 3 Hamburg IL STLSMO05XPX  506J TWILIO INTERNATIONAL, INC. 520   2021-06-10   
618-620 6 Hamburg IL STLSMOWQDS2  224C ONVOY, LLC 520   2021-02-11   
618-620 9 Hamburg IL COVLILCQXMX  495J STRATUS NETWORKS 520   2020-11-22   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.