Possible BGP hijack

Beginning at 2021-05-11 15:57:26, we detected a possible BGP hijack.

Prefix 152.10.0.0/16, Normally announced by AS81 NCREN, US

Starting at 2021-05-11 15:57:26, a more specific route (152.10.28.0/22) was announced by ASN 7474.

This was detected by 127 BGPMon peers.

Expected
Start time: 2021-05-11 15:57:26 UTC
Expected prefix: 152.10.0.0/16
Expected ASN: 81 (NCREN, US)
Event Details
Detected advertisement: 152.10.28.0/22
Detected Origin ASN 7474 (OPTUSCOM-AS01-AU SingTel Optus Pty Ltd, AU)
Detected AS Path 393891 3356 6461 7473 4804 4804 7474
Detected by number of BGPMon peers: 127

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