Possible BGP hijack

Beginning at 2020-10-31 10:37:26, we detected a possible BGP hijack.

Prefix 221.123.128.0/18, Normally announced by AS23724 CHINANET-IDC-BJ-AP IDC, China Telecommunications Corporation, CN

Starting at 2020-10-31 10:37:26, a more specific route (221.123.155.0/24) was announced by ASN 53948.

This was detected by 20 BGPMon peers.

Expected
Start time: 2020-10-31 10:37:26 UTC
Expected prefix: 221.123.128.0/18
Expected ASN: 23724 (CHINANET-IDC-BJ-AP IDC, China Telecommunications Corporation, CN)
Event Details
Detected advertisement: 221.123.155.0/24
Detected Origin ASN 53948 (ONEIRIC, US)
Detected AS Path 133812 137363 58552 9505 53948
Detected by number of BGPMon peers: 20

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