Possible BGP hijack

Beginning at 2023-12-25 21:20:59, we detected a possible BGP hijack.

Prefix 89.8.0.0/15, Normally announced by AS12929 NETCOM-AS Oslo, Norway, NO

Starting at 2023-12-25 21:20:59, a more specific route (89.9.72.0/23) was announced by ASN 12389.

This was detected by 6 BGPMon peers.

Expected
Start time: 2023-12-25 21:20:59 UTC
Expected prefix: 89.8.0.0/15
Expected ASN: 12929 (NETCOM-AS Oslo, Norway, NO)
Event Details
Detected advertisement: 89.9.72.0/23
Detected Origin ASN 12389 (ROSTELECOM-AS, RU)
Detected AS Path 63956 3491 5511 12389
Detected by number of BGPMon peers: 6

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