Possible BGP hijack

Beginning at 2020-04-23 15:49:45 UTC, we detected a possible BGP hijack.

Prefix 197.221.187.0/24, is normally announced by AS37356 O-Tel, ZA.

But beginning at 2020-04-23 15:49:45, the same prefix (197.221.187.0/24) was also announced by ASN 5.

This was detected by 131 BGPMon peers.

Expected
Start time: 2020-04-23 15:49:45 UTC
Expected prefix: 197.221.187.0/24
Expected ASN: 37356 (O-Tel, ZA)
Event Details
Detected advertisement: 197.221.187.0/24
Detected Origin ASN 5 (SYMBOLICS, US)
Detected AS Path 35266 2914 5713 37357 5
Detected by number of BGPMon peers: 131

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