Possible BGP hijack

Beginning at 2021-12-20 23:42:17 UTC, we detected a possible BGP hijack.

Prefix 138.199.105.0/24, is normally announced by AS399415 .

But beginning at 2021-12-20 23:42:17, the same prefix (138.199.105.0/24) was also announced by ASN 19905.

This was detected by 111 BGPMon peers.

Expected
Start time: 2021-12-20 23:42:17 UTC
Expected prefix: 138.199.105.0/24
Expected ASN: 399415 ()
Event Details
Detected advertisement: 138.199.105.0/24
Detected Origin ASN 19905 (NEUSTAR-AS6, US)
Detected AS Path 49134 53356 60011 3356 2914 19905
Detected by number of BGPMon peers: 111

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