Possible BGP hijack

Beginning at 2022-01-11 12:43:10 UTC, we detected a possible BGP hijack.

Prefix 46.255.0.0/21, is normally announced by AS52076 Unknown.

But beginning at 2022-01-11 12:43:10, the same prefix (46.255.0.0/21) was also announced by ASN 13259.

This was detected by 86 BGPMon peers.

Expected
Start time: 2022-01-11 12:43:10 UTC
Expected prefix: 46.255.0.0/21
Expected ASN: 52076 (Unknown)
Event Details
Detected advertisement: 46.255.0.0/21
Detected Origin ASN 13259 (DELTA-TELESYSTEMS-AS, RU)
Detected AS Path 6881 29208 12389 13259
Detected by number of BGPMon peers: 86

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