Possible BGP hijack

Beginning at 2022-11-11 18:18:16, we detected a possible BGP hijack.

Prefix 149.235.0.0/16, Normally announced by AS3257 GTT-BACKBONE GTT, US

Starting at 2022-11-11 18:18:16, a more specific route (149.235.48.0/21) was announced by ASN 203160.

This was detected by 74 BGPMon peers.

Expected
Start time: 2022-11-11 18:18:16 UTC
Expected prefix: 149.235.0.0/16
Expected ASN: 3257 (GTT-BACKBONE GTT, US)
Event Details
Detected advertisement: 149.235.48.0/21
Detected Origin ASN 203160 (OPENTEXT-AS-EU, FR)
Detected AS Path 200155 39392 1299 702 203160 203160
Detected by number of BGPMon peers: 74

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