Possible BGP hijack

Beginning at 2019-09-18 20:42:50 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS20172 VGRS-AC27 - VeriSign Global Registry Services, US.

But beginning at 2019-09-18 20:42:50, the same prefix ( was also announced by ASN 27839.

This was detected by 5 BGPMon peers.

Start time: 2019-09-18 20:42:50 UTC
Expected prefix:
Expected ASN: 20172 (VGRS-AC27 - VeriSign Global Registry Services, US)
Event Details
Detected advertisement:
Detected Origin ASN 27839 (Comteco Ltda, BO)
Detected AS Path 19704 7922 12956 27839
Detected by number of BGPMon peers: 5

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