Telia (AS1299) stopped announce some prefixes to us, ie 83.8.0.0/13. Is
it another internet depeering? Do you also see it?
"There are more routing policies on the Internet, Horatio,
Than are dreamt of in your philosophy."
I suggest examining the communities attached to the prefixes in
question. Route-views, RIPE ris, L3 LG and others in one hand,
Charlie & team's community summary page in the other
(http://http://onesc.net/communities/).