Possible BGP hijack

Beginning at 2023-04-20 18:21:29, we detected a possible BGP hijack.

Prefix 2400:99a0::/32, Normally announced by AS24271 ICTV Iruma CATV co., JP

Starting at 2023-04-20 18:21:29, a more specific route (2400:99a0::/48) was announced by ASN 63739.

This was detected by 13 BGPMon peers.

Start time: 2023-04-20 18:21:29 UTC
Expected prefix: 2400:99a0::/32
Expected ASN: 24271 (ICTV Iruma CATV co., JP)
Event Details
Detected advertisement: 2400:99a0::/48
Detected Origin ASN 63739 (VIETPN-AS-VN VIETPN Company Limited, VN)
Detected AS Path 7018 5511 18403 18403 18403 18403 63739
Detected by number of BGPMon peers: 13

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