Possible BGP hijack

Beginning at 2018-10-30 02:16:14 UTC, we detected a possible BGP hijack.

Prefix 201.54.48.0/20, is normally announced by AS28629 SENADO FEDERAL.

But beginning at 2018-10-30 02:16:14, the same prefix (201.54.48.0/20) was also announced by ASN 3356.

This was detected by 154 BGPMon peers.

Expected
Start time: 2018-10-30 02:16:14 UTC
Expected prefix: 201.54.48.0/20
Expected ASN: 28629 (SENADO FEDERAL)
Event Details
Detected advertisement: 201.54.48.0/20
Detected Origin ASN 3356 (Level 3 Parent, LLC)
Detected AS Path 30013 3356
Detected by number of BGPMon peers: 154

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