Possible BGP hijack

Beginning at 2020-05-21 17:30:32 UTC, we detected a possible BGP hijack.

Prefix 103.16.102.0/23, is normally announced by AS3758 SINGNET SingNet, SG.

But beginning at 2020-05-21 17:30:32, the same prefix (103.16.102.0/23) was also announced by ASN 4809.

This was detected by 5 BGPMon peers.

Expected
Start time: 2020-05-21 17:30:32 UTC
Expected prefix: 103.16.102.0/23
Expected ASN: 3758 (SINGNET SingNet, SG)
Event Details
Detected advertisement: 103.16.102.0/23
Detected Origin ASN 4809 (CHINATELECOM-CORE-WAN-CN2 China Telecom Next Generation Carrier Network, CN)
Detected AS Path 28140 4809
Detected by number of BGPMon peers: 5

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