I have some working Tripoli numbers now, which are of the form
00218 912 XXXXXX
In general, once one can get hold of one major-airport number (with an English speaking person on it) from/near a given country, one can phone them, get the fax number, and then get other needed numbers that way. That's how I got numbers for Tirana ATC - from Corfu ATC. All the published numbers for that were duff too.
I wonder how Jepp manage to publish stuff which must be years out of date. Not a single number on the whole page is right. This is out of Jeppview which is a 4-digit price.