Possible BGP hijack

Beginning at 2020-12-08 08:16:34, we detected a possible BGP hijack.

Prefix 2a03:6505::/32, Normally announced by AS6731 COMSTAR-AS MTS Moscow, former COMSTAR Telecommunications, RU

Starting at 2020-12-08 08:16:34, a more specific route (2a03:6505:2000::/48) was announced by ASN 25513.

This was detected by 16 BGPMon peers.

Start time: 2020-12-08 08:16:34 UTC
Expected prefix: 2a03:6505::/32
Expected ASN: 6731 (COMSTAR-AS MTS Moscow, former COMSTAR Telecommunications, RU)
Event Details
Detected advertisement: 2a03:6505:2000::/48
Detected Origin ASN 25513 (ASN-MGTS-USPD, RU)
Detected AS Path 52873 12956 3356 8359 25513
Detected by number of BGPMon peers: 16

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