Possible BGP hijack

Beginning at 2023-03-27 18:37:19 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS174 COGENT-174, US.

But beginning at 2023-03-27 18:37:19, the same prefix ( was also announced by ASN 26636.

This was detected by 4 BGPMon peers.

Start time: 2023-03-27 18:37:19 UTC
Expected prefix:
Expected ASN: 174 (COGENT-174, US)
Event Details
Detected advertisement:
Detected Origin ASN 26636 (GBTCLOUD, US)
Detected AS Path 11039 46261 26636
Detected by number of BGPMon peers: 4

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