Possible BGP hijack

Beginning at 2019-11-01 04:44:29 UTC, we detected a possible BGP hijack.

Prefix 45.173.4.0/23, is normally announced by AS267857 --No Registry Entry--.

But beginning at 2019-11-01 04:44:29, the same prefix (45.173.4.0/23) was also announced by ASN 265855.

This was detected by 101 BGPMon peers.

Expected
Start time: 2019-11-01 04:44:29 UTC
Expected prefix: 45.173.4.0/23
Expected ASN: 267857 (--No Registry Entry--)
Event Details
Detected advertisement: 45.173.4.0/23
Detected Origin ASN 265855 (LEGON TELECOMUNICACIONES SAS, CO)
Detected AS Path 61951 262765 16735 23520 262186 265855
Detected by number of BGPMon peers: 101

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