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: 572 [Rate centres in NPA 572] [Dial plan for NPA 572]

NXX: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
572-356 A Maysville OK OKCYOKCEXLZ  965H FRACTEL, LLC 536      
572-356 0 Maysville OK OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   
572-356 4 Maysville OK   612K CSC VOICE, LLC 536   2021-10-24   
572-356 5 Maysville OK   6529 T-MOBILE USA, INC. 536   2026-07-09   
572-356 6 Maysville OK OKCYOKCEXLZ  965H FRACTEL, LLC 536   2021-05-24   
572-356 7 Maysville OK OKCYOKCEXLZ  965H FRACTEL, LLC 536   2021-05-24   
572-356 8 Maysville OK OKCYOKCEXLZ  965H FRACTEL, LLC 536   2021-05-24   
572-356 9 Maysville OK OKCYOKCEXLZ  965H FRACTEL, LLC 536   2021-05-24   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.