OurAirports has records for 9 different navaids with the identifier "IS". Please select the one you'd like to view.
Bangladesh
350 KHz (IS .. ...)
.. ...
Brazil
220 KHz (IS .. ...)
345 KHz (IS .. ...)
290 KHz (IS .. ...)
France
341 KHz (IS .. ...)
Iceland
385 KHz (IS .. ...)
Turkey
396 KHz (IS .. ...)
United States
366 KHz (IS .. ...)
276 KHz (IS .. ...)