Possible BGP hijack

Beginning at 2018-12-06 00:15:43 UTC, we detected a possible BGP hijack.

Prefix 173.255.146.0/24, is normally announced by AS18986 PACIFICONLINE - Calligo (Canada) Inc., CA.

But beginning at 2018-12-06 00:15:43, the same prefix (173.255.146.0/24) was also announced by ASN 204648.

This was detected by 75 BGPMon peers.

Expected
Start time: 2018-12-06 00:15:43 UTC
Expected prefix: 173.255.146.0/24
Expected ASN: 18986 (PACIFICONLINE - Calligo (Canada) Inc., CA)
Event Details
Detected advertisement: 173.255.146.0/24
Detected Origin ASN 204648 (CALLIGO, JE)
Detected AS Path 30382 12129 1299 174 13208 204648
Detected by number of BGPMon peers: 75

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