Possible BGP hijack

Beginning at 2021-04-20 09:01:28, we detected a possible BGP hijack.

Prefix 31.172.64.0/20, Normally announced by AS44066 DE-FIRSTCOLO www.first-colo.net, DE

Starting at 2021-04-20 09:01:28, a more specific route (31.172.66.0/24) was announced by ASN 49063.

This was detected by 127 BGPMon peers.

Expected
Start time: 2021-04-20 09:01:28 UTC
Expected prefix: 31.172.64.0/20
Expected ASN: 44066 (DE-FIRSTCOLO www.first-colo.net, DE)
Event Details
Detected advertisement: 31.172.66.0/24
Detected Origin ASN 49063 (DTLN, RU)
Detected AS Path 19704 7922 6762 20485 49063
Detected by number of BGPMon peers: 127

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