Possible BGP hijack

Beginning at 2021-11-01 14:46:44, we detected a possible BGP hijack.

Prefix, Normally announced by AS4811 CHINANET-SHANGHAI-MAN China Telecom Group, CN

Starting at 2021-11-01 14:46:44, a more specific route ( was announced by ASN 21859.

This was detected by 115 BGPMon peers.

Start time: 2021-11-01 14:46:44 UTC
Expected prefix:
Expected ASN: 4811 (CHINANET-SHANGHAI-MAN China Telecom Group, CN)
Event Details
Detected advertisement:
Detected Origin ASN 21859 (ZEN-ECN, US)
Detected AS Path 48200 1273 174 21859
Detected by number of BGPMon peers: 115

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