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.

Switch: PBVJPRCO1MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
939-220 A Humacao PR 559F NEUTRAL TANDEM - PR 820      
939-303 A Río Grande PR 559F NEUTRAL TANDEM - PR 820      
939-600 A Pueblo Viejo PR 559F NEUTRAL TANDEM - PR 820      
939-749 A Coamo PR 559F NEUTRAL TANDEM - PR 820      
939-759 A Santurce PR 559F NEUTRAL TANDEM - PR 820      
939-779 A Villalba PR 559F NEUTRAL TANDEM - PR 820      
939-839 A Yabucoa PR 559F NEUTRAL TANDEM - PR 820      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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