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.
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Switch: PHNMAZKH0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
480-328 A Phoenix AZ 6906 AMERICAN MESSAGING SERVICES, LLC 666     2024-04-21 
480-475 A Phoenix AZ 6906 AMERICAN MESSAGING SERVICES, LLC 666     2024-04-21 
602-203 A Phoenix AZ 6906 AMERICAN MESSAGING SERVICES, LLC 666     2024-04-21 
602-209 A Phoenix AZ 6906 AMERICAN MESSAGING SERVICES, LLC 666     2024-04-21 
602-210 A Phoenix AZ 6906 AMERICAN MESSAGING SERVICES, LLC 666     2024-04-21 
623-880 A Phoenix AZ 6906 AMERICAN MESSAGING SERVICES, LLC 666     2024-04-21 

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

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