Possible BGP hijack

Beginning at 2023-08-25 07:21:04, we detected a possible BGP hijack.

Prefix, Normally announced by AS16344 IS-BG-AS Bulgarian ISP, BG

Starting at 2023-08-25 07:21:04, a more specific route ( was announced by ASN 19905.

This was detected by 18 BGPMon peers.

Start time: 2023-08-25 07:21:04 UTC
Expected prefix:
Expected ASN: 16344 (IS-BG-AS Bulgarian ISP, BG)
Event Details
Detected advertisement:
Detected Origin ASN 19905 (NEUSTAR-AS6, US)
Detected AS Path 63956 3491 22822 19905
Detected by number of BGPMon peers: 18

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