Possible BGP hijack

Beginning at 2018-12-18 14:53:28 UTC, we detected a possible BGP hijack.

Prefix 197.148.128.0/18, is normally announced by AS37133 airtel-tz-as, TZ.

But beginning at 2018-12-18 14:53:28, the same prefix (197.148.128.0/18) was also announced by ASN 36926.

This was detected by 75 BGPMon peers.

Expected
Start time: 2018-12-18 14:53:28 UTC
Expected prefix: 197.148.128.0/18
Expected ASN: 37133 (airtel-tz-as, TZ)
Event Details
Detected advertisement: 197.148.128.0/18
Detected Origin ASN 36926 (CKL1-ASN, KE)
Detected AS Path 41405 29075 9498 36926
Detected by number of BGPMon peers: 75

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