Possible BGP hijack

Beginning at 2021-02-24 15:04:45 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS4713 OCN NTT Communications Corporation, JP.

But beginning at 2021-02-24 15:04:45, the same prefix ( was also announced by ASN 2687.

This was detected by 2 BGPMon peers.

Start time: 2021-02-24 15:04:45 UTC
Expected prefix:
Expected ASN: 4713 (OCN NTT Communications Corporation, JP)
Event Details
Detected advertisement:
Detected Origin ASN 2687 (ATGS-MMD-AS, US)
Detected AS Path 328145 37271 3257 2687
Detected by number of BGPMon peers: 2

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