Possible BGP hijack

Beginning at 2022-12-14 00:06:36 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS21436 ALMANID-AS-BSL, CH.

But beginning at 2022-12-14 00:06:36, the same prefix ( was also announced by ASN 15517.

This was detected by 9 BGPMon peers.

Start time: 2022-12-14 00:06:36 UTC
Expected prefix:
Expected ASN: 21436 (ALMANID-AS-BSL, CH)
Event Details
Detected advertisement:
Detected Origin ASN 15517 (NETSTREAM-, CH)
Detected AS Path 138540 9299 6939 15517
Detected by number of BGPMon peers: 9

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