I haven't looked at Point Mugu in much detail before but it seems to be the only place - apart from home base BED - that all three big MIT aircraft have visited in recent past. Thanks to Chris for pointing out 'MTH' as the code for MIT as used for the B707 N404PA and the DA10 (really DA20) N20NY....see below which has been edited to remove EGJ F27s, heavy civil airliners and BYA.