Possible BGP hijack

Beginning at 2019-03-06 05:34:23, we detected a possible BGP hijack.

Prefix 168.252.128.0/20, Normally announced by AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd, AU

Starting at 2019-03-06 05:34:23, a more specific route (168.252.132.0/24) was announced by ASN 5400.

This was detected by 173 BGPMon peers.

Expected
Start time: 2019-03-06 05:34:23 UTC
Expected prefix: 168.252.128.0/20
Expected ASN: 7474 (OPTUSCOM-AS01-AU SingTel Optus Pty Ltd, AU)
Event Details
Detected advertisement: 168.252.132.0/24
Detected Origin ASN 5400 (BT, GB)
Detected AS Path 133812 137363 58552 9002 5400
Detected by number of BGPMon peers: 173

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