Apparently the Lebanese had a bit of a shuffle with their registrations.
From Airliners.net
'Belgian Hunter Mk. 6s
L-280 ex-IF-34 Purchased by HSA. Converted to T.Mk.66C Delivered 27-07-66
L-281 ex-IF- 60 Purchased by HSA. Converted to T.Mk.66C Delivered 15-11-65.
L-282 ex-IF-112 Purchased by HSA as G-9-119. Converted to T.Mk.66C Delivered 23-12-65. '
......
'They were originally registered L280 and L281, but were reserialized in the late 70s as L286 and L287.The same happened with the surviving Hunter F6 and FGA70 from the late 50s and early 60s ,which used to be registered L170 onwards.They were also re-numbered in the late 70s as L270 onwards. This followed the delivery in 1976/77 of the 6 FGA70As, which were numbered L280to L 285'.