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: 620 [Rate centres in NPA 620] [Dial plan for NPA 620]

NXX: 720

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-720 A Pawnee Rock KS WCHTKSMBX2X  2240 LEVEL 3 COMMUNICATIONS, LLC - KS 532      
620-720 0 Pawnee Rock KS WCHTKSMBX2X  2240 LEVEL 3 COMMUNICATIONS, LLC - KS 532      
620-720 1 Pawnee Rock KS WCHTKSBRX5X  986E BANDWIDTH.COM CLEC, LLC - KS 532   2008-11-26   
620-720 2 Pawnee Rock KS WCHTKSTPDS0  018H PEERLESS NETWORK OF KANSAS, LLC - KS 532   2016-02-20   
620-720 3 Pawnee Rock KS WCHTKSTPNMD  073H TELNYX LLC 532   2019-05-20   
620-720 4 Pawnee Rock KS WCHTKSBRXPZ  624H ONVOY SPECTRUM, LLC 532   2025-01-21   
620-720 5 Pawnee Rock KS WCHTKSBRTMD  516C AT&T CORP. 532   2024-09-23   
620-720 7 Pawnee Rock KS WCHTKSBRXVY  508J CENTURYLINK COMMUNICATIONS, LLC 532   2014-03-11   
620-720 8 Pawnee Rock KS   515J IP HORIZON LLC 532   2022-05-02   
620-720 9 Pawnee Rock KS WCHTKSMBX2X  2240 LEVEL 3 COMMUNICATIONS, LLC - KS 532      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.