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.

Saratoga, WY

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
307-326 A SRTGWYXCRS1  2297 UNION TEL. CO. 654      
307-329 A CHYNWYVACM1  013B UNION TELEPHONE COMPANY 654      
307-447 A CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-447 2   9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2015-11-29   
307-447 7   145J TERRA NOVA TELECOM INC. 654   2025-07-14   
307-447 8   6010 NEW CINGULAR WIRELESS PCS, LLC 654   2021-12-03   
307-447 9   6010 NEW CINGULAR WIRELESS PCS, LLC 654   2021-12-03   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.