Possible BGP hijack

Beginning at 2019-11-29 17:52:52 UTC, we detected a possible BGP hijack.

Prefix 38.39.160.0/20, is normally announced by AS174 COGENT-174 - Cogent Communications, US.

But beginning at 2019-11-29 17:52:52, the same prefix (38.39.160.0/20) was also announced by ASN 266445.

This was detected by 126 BGPMon peers.

Expected
Start time: 2019-11-29 17:52:52 UTC
Expected prefix: 38.39.160.0/20
Expected ASN: 174 (COGENT-174 - Cogent Communications, US)
Event Details
Detected advertisement: 38.39.160.0/20
Detected Origin ASN 266445 (SEA TELECOM LTDA, BR)
Detected AS Path 36692 3257 2828 4230 266445 266445 266445 266445
Detected by number of BGPMon peers: 126

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