Possible BGP hijack

Beginning at 2018-06-11 10:04:51 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS174 Cogent Communications.

But beginning at 2018-06-11 10:04:51, the same prefix ( was also announced by ASN 57791.

This was detected by 80 BGPMon peers.

Start time: 2018-06-11 10:04:51 UTC
Expected prefix:
Expected ASN: 174 (Cogent Communications)
Event Details
Detected advertisement:
Detected Origin ASN 57791 (Arden Broadband Ltd)
Detected AS Path 32764 11017 6939 43192 57791
Detected by number of BGPMon peers: 80

Watch the replay of this event