Possible BGP hijack

Beginning at 2020-09-29 17:46:06 UTC, we detected a possible BGP hijack.

Prefix 109.94.128.0/22, is normally announced by AS50063 SAINSBURYS-NET, GB.

But beginning at 2020-09-29 17:46:06, the same prefix (109.94.128.0/22) was also announced by ASN 1221.

This was detected by 129 BGPMon peers.

Expected
Start time: 2020-09-29 17:46:06 UTC
Expected prefix: 109.94.128.0/22
Expected ASN: 50063 (SAINSBURYS-NET, GB)
Event Details
Detected advertisement: 109.94.128.0/22
Detected Origin ASN 1221 (ASN-TELSTRA Telstra Corporation Ltd, AU)
Detected AS Path 25605 3257 4637 1221
Detected by number of BGPMon peers: 129

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