Possible BGP hijack

Beginning at 2019-06-20 23:46:12 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS266717 Academia Nacional de Ciencias, CR.

But beginning at 2019-06-20 23:46:12, the same prefix ( was also announced by ASN 27884.

This was detected by 142 BGPMon peers.

Start time: 2019-06-20 23:46:12 UTC
Expected prefix:
Expected ASN: 266717 (Academia Nacional de Ciencias, CR)
Event Details
Detected advertisement:
Detected Origin ASN 27884 (CABLECOLOR S.A., HN)
Detected AS Path 53830 3356 1299 27884
Detected by number of BGPMon peers: 142

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