What makes BSNL AS9829 as most unstable ASN in the world?!

Anurag Bhatia
On weekend I was looking at BGP Instability Report data. As usual (and unfortunately) BSNL tops that list. BSNL is the most unstable autonomous network in the world. In past, I have written previously about how AS9829 is the rotten IP backbone. This isn’t a surprise since they keep on coming on top but I think it’s well worth a check on what exactly is causing that. So I looked into BGP tables updates published on Oregon route-views from 21st May to 27th May and pulled data specifically for AS9829.

Prefix hijacks by D-Vois Broadband

Anurag Bhatia
Today BGPmon reported about possible BGP prefix hijack of Amazon’s IP address space. Amazon announces from AS14618. At 13:45:44 UTC / 19:15:44 IST D-Vois broadband started originating a more specific in the table from AS45769. One of example AS_PATH of this announcement: 198290 197264 197264 197264 29467 1299 9583 45769 Clearly, this leak was carried over by AS9583 (Sify) to AS1299 (Telia) and was carried over to rest of internet from there.