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: 573 [Rate centres in NPA 573] [Dial plan for NPA 573]

NXX: 662

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-662 A Iberia MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
573-662 2 Iberia MO   145J TERRA NOVA TELECOM INC. 520   2025-05-30   
573-662 4 Iberia MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2006-06-30   

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.