Possible BGP hijack

Beginning at 2020-09-21 16:50:29 UTC, we detected a possible BGP hijack.

Prefix 186.237.111.0/24, is normally announced by AS270634 TOP ON SERVICOS DE MULTIMIDIA LTDA ME, BR.

But beginning at 2020-09-21 16:50:29, the same prefix (186.237.111.0/24) was also announced by ASN 3549.

This was detected by 4 BGPMon peers.

Expected
Start time: 2020-09-21 16:50:29 UTC
Expected prefix: 186.237.111.0/24
Expected ASN: 270634 (TOP ON SERVICOS DE MULTIMIDIA LTDA ME, BR)
Event Details
Detected advertisement: 186.237.111.0/24
Detected Origin ASN 3549 (LVLT-3549, US)
Detected AS Path 28300 264111 3356 3549
Detected by number of BGPMon peers: 4

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