Possible BGP hijack

Beginning at 2021-04-27 09:04:55, we detected a possible BGP hijack.

Prefix 220.98.0.0/16, Normally announced by AS4713 OCN NTT Communications Corporation, JP

Starting at 2021-04-27 09:04:55, a more specific route (220.98.4.0/24) was announced by ASN 131795.

This was detected by 62 BGPMon peers.

Expected
Start time: 2021-04-27 09:04:55 UTC
Expected prefix: 220.98.0.0/16
Expected ASN: 4713 (OCN NTT Communications Corporation, JP)
Event Details
Detected advertisement: 220.98.4.0/24
Detected Origin ASN 131795 (KIER-AS-KR KOREA INSTITUTE OF ENERGY RESEARCH, KR)
Detected AS Path 18356 45458 45430 7473 4766 1237 1237 131795
Detected by number of BGPMon peers: 62

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