28°32′24″N 81°22′48″W / 28.54000°N 81.38000°W / 28.54000; -81.38000
"Status of Numbering Plan Area (NPA) Codes in World Zone 1" (PDF). NANPA. 1993-01-13. Retrieved 2023-05-26. https://www.nationalnanpa.com/pdf/old_pl/IL-93%2001-017.pdf ↩
"Area code details: 689". Florida Public Service Commission. Retrieved August 16, 2012. http://www.psc.state.fl.us/utilities/telecomm/areacode/acdetails.aspx?areacode=689 ↩