Possible BGP hijack

Beginning at 2020-10-20 04:24:34, we detected a possible BGP hijack.

Prefix 172.32.0.0/11, Normally announced by AS21928 T-MOBILE-AS21928, US

Starting at 2020-10-20 04:24:34, a more specific route (172.40.1.0/24) was announced by ASN 22698.

This was detected by 91 BGPMon peers.

Expected
Start time: 2020-10-20 04:24:34 UTC
Expected prefix: 172.32.0.0/11
Expected ASN: 21928 (T-MOBILE-AS21928, US)
Event Details
Detected advertisement: 172.40.1.0/24
Detected Origin ASN 22698 (AVANTEL SAS, CO)
Detected AS Path 53137 25933 3549 3356 6830 23520 262191 262191 262191 262191 262191 262191 262191 22698
Detected by number of BGPMon peers: 91

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