Possible BGP hijack

Beginning at 2019-05-28 00:23:38 UTC, we detected a possible BGP hijack.

Prefix 104.255.217.0/24, is normally announced by AS36121 NUCOM - Nucom Technology, Inc., US.

But beginning at 2019-05-28 00:23:38, the same prefix (104.255.217.0/24) was also announced by ASN 37119.

This was detected by 139 BGPMon peers.

Expected
Start time: 2019-05-28 00:23:38 UTC
Expected prefix: 104.255.217.0/24
Expected ASN: 36121 (NUCOM - Nucom Technology, Inc., US)
Event Details
Detected advertisement: 104.255.217.0/24
Detected Origin ASN 37119 (unitel-AS, AO)
Detected AS Path 30382 20115 3491 37119
Detected by number of BGPMon peers: 139

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