Possible BGP hijack

Beginning at 2023-07-15 13:36:09 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS3949 NTTA-3946, US.

But beginning at 2023-07-15 13:36:09, the same prefix ( was also announced by ASN 6500.

This was detected by 8 BGPMon peers.

Start time: 2023-07-15 13:36:09 UTC
Expected prefix:
Expected ASN: 3949 (NTTA-3946, US)
Event Details
Detected advertisement:
Detected Origin ASN 6500 (NEXUS-22-6500, US)
Detected AS Path 36692 4862 51964 6500
Detected by number of BGPMon peers: 8

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