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: NDADFLGGXEZ

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
645-203 A Miami FL 839J EON TELECOM, INC. 46017   2024-03-07   
645-209 A Keys FL 839J EON TELECOM, INC. 46017   2024-04-25   
645-210 A North Dade FL 839J EON TELECOM, INC. 46017   2024-04-25   
645-212 A Homestead FL 839J EON TELECOM, INC. 46017   2024-04-25   
645-213 A Perrine FL 839J EON TELECOM, INC. 46017   2024-04-25   

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

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