Possible BGP hijack

Beginning at 2020-11-12 10:09:56 UTC, we detected a possible BGP hijack.

Prefix 197.158.208.0/20, is normally announced by AS37133 airtel-tz-as, TZ.

But beginning at 2020-11-12 10:09:56, the same prefix (197.158.208.0/20) was also announced by ASN 36926.

This was detected by 40 BGPMon peers.

Expected
Start time: 2020-11-12 10:09:56 UTC
Expected prefix: 197.158.208.0/20
Expected ASN: 37133 (airtel-tz-as, TZ)
Event Details
Detected advertisement: 197.158.208.0/20
Detected Origin ASN 36926 (CKL1-ASN, KE)
Detected AS Path 18356 9931 4651 37662 9498 36926
Detected by number of BGPMon peers: 40

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