Possible BGP hijack

Beginning at 2019-08-30 16:48:29 UTC, we detected a possible BGP hijack.

Prefix 173.255.147.0/24, is normally announced by AS204648 CALLIGO, JE.

But beginning at 2019-08-30 16:48:29, the same prefix (173.255.147.0/24) was also announced by ASN 266203.

This was detected by 15 BGPMon peers.

Expected
Start time: 2019-08-30 16:48:29 UTC
Expected prefix: 173.255.147.0/24
Expected ASN: 204648 (CALLIGO, JE)
Event Details
Detected advertisement: 173.255.147.0/24
Detected Origin ASN 266203 (CLICK INTERNET LTDA ME, BR)
Detected AS Path 262149 52228 23520 3491 58453 7738 7738 8167 28130 28130 262756 262756 262756 262756 262756 264321 264321 264321 266203 266203 266203 266203
Detected by number of BGPMon peers: 15

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