Possible BGP hijack

Beginning at 2023-08-12 19:30:46, we detected a possible BGP hijack.

Prefix 41.87.64.0/19, Normally announced by AS37248 PHASE3TEL, NG

Starting at 2023-08-12 19:30:46, a more specific route (41.87.83.0/24) was announced by ASN 37315.

This was detected by 2 BGPMon peers.

Expected
Start time: 2023-08-12 19:30:46 UTC
Expected prefix: 41.87.64.0/19
Expected ASN: 37248 (PHASE3TEL, NG)
Event Details
Detected advertisement: 41.87.83.0/24
Detected Origin ASN 37315 (CipherWave, ZA)
Detected AS Path 35710 48200 23764 30844 37315
Detected by number of BGPMon peers: 2

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