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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OCN: 3922 TELEGUAM HOLDINGS, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
671-201 A Agana GU TMNGGU03GT1  871      
671-480 A Agana GU TMNGGU03GT1  871      
671-482 A Agana GU TMNGGU03GT1  871      
671-483 A Agana GU TMNGGU03GT1  871      
671-484 A Agana GU TMNGGU03GT1  871      
671-485 A Agana GU TMNGGU03GT1  871      
671-486 A Agana GU TMNGGU03GT1  871      
671-487 A Agana GU TMNGGU03GT1  871      
671-488 A Agana GU TMNGGU03GT1  871      
671-489 A Agana GU TMNGGU03GT1  871      
671-864 A Agana GU TMNGGU03GT1  871      
671-865 A Agana GU   871   2025-10-30   
671-867 A Agana GU TMNGGU03GT1  871   2024-10-05   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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