Hello Geoff and all,
Thank you for pointing it out, I must say I don't read many of the until you brought this up.
I also wonder if someone is seeing what you have mentioned. Again, this week shows similar thing with these updating about two-times per minute:
TOP 20 Unstable PrefixesRank Prefix Upds % Origin AS -- AS Name 1 - 93.181.192.0/19 22303 0.6% AS13118 -- ASN-YARTELECOM Verhnevolzhsky branch, RU 2 - 110.170.17.0/24 22036 0.6% AS134438 -- AIRAAIFUL-AS-AP Aira & Aiful Public Company Limited, TH 3 - 103.242.52.0/22 20105 0.6% AS131390 -- ECOMVIET-AS-VN Vietnam E-commerce Development Centre, VN