Possible BGP hijack

Beginning at 2020-05-28 18:19:29 UTC, we detected a possible BGP hijack.

Prefix 23.177.160.0/24, is normally announced by AS397321 PROVIDENCE-MB-CA-01, CA.

But beginning at 2020-05-28 18:19:29, the same prefix (23.177.160.0/24) was also announced by ASN 20291.

This was detected by 43 BGPMon peers.

Expected
Start time: 2020-05-28 18:19:29 UTC
Expected prefix: 23.177.160.0/24
Expected ASN: 397321 (PROVIDENCE-MB-CA-01, CA)
Event Details
Detected advertisement: 23.177.160.0/24
Detected Origin ASN 20291 (3TSYSTEMS, CA)
Detected AS Path 28130 16735 6327 20291
Detected by number of BGPMon peers: 43

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