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: ROCHMNHH3MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
507-258 A Rochester MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   
507-603 A Kasson MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   
507-604 A Lewiston MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   
507-624 A Byron MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   
507-654 A Eagle Lake MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   
507-704 A Altura MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   
507-720 A Mankato MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   
507-731 A Zumbrota MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   
507-799 A Eyota MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   
507-961 A Winona MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   
507-992 A Cottonwood MN 792K CHARTER IP ENABLED SERVICES, LLC 620   2025-02-27   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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