Turns out they did not leak just this one. It was hijack impacting over 30,000 prefixes. 

https://twitter.com/DougMadory/status/1383138595112955909?s=20




On Fri, Apr 16, 2021 at 11:40 PM Anurag Bhatia <me@anuragbhatia.com> wrote:
Hello, 


Anyone here from Vodafone India (and/or their upstream Airtel AS9498). 
Seems like Vodafone AS55410 (likely accidentally) hijacked a Brazilian pool 24.152.117.0/24

https://twitter.com/bgpstream/status/1383115813004181504?s=20

It was visible on RIPE RIS rrc05.ripe.net at VIX, Vienna. 

Raw MRT dump show this: 

anurag@devops01:~/tmp$ bgpscanner -e '24.152.117.0/24' latest-bview.gz  | awk -F '|' '{OFS="|"; print $2,$3}'
24.152.117.0/24|35369 2914 3356 28598 263362 263362 263362 263362 270497
24.152.117.0/24|48362 3356 28598 263362 263362 263362 263362 270497
24.152.117.0/24|47147 2914 3356 28598 263362 263362 263362 263362 270497
24.152.117.0/24|47692 33891 6461 9498 55410 55410 55410
24.152.117.0/24|51184 47692 33891 6461 9498 55410 55410 55410
24.152.117.0/24|59890 3356 28598 263362 263362 263362 263362 270497
24.152.117.0/24|8218 6461 3356 28598 263362 263362 263362 263362 270497
24.152.117.0/24|6720 1853 6939 28598 263362 263362 263362 263362 270497
24.152.117.0/24|13237 2914 174 28598 263362 263362 263362 263362 270497
anurag@devops01:~/tmp$




So besides Vodafone AS55410 hijacking it, seems like Airtel AS9498 carried it to AS6461 i.e upto default free zone. If not an hijack, then they should get the IRR route object updated (which right now shows AS270497 in origin). 


Details about the pool:
inetnum:     24.152.116.0/22
aut-num:     AS270497
abuse-c:     RUMCU12
owner:       RUTE MARIA DA CUNHA
ownerid:     13.974.251/0001-19
responsible: RUTE MARIA DA CUNHA
country:     BR
owner-c:     RUMCU12
tech-c:      RUMCU12
created:     20200312
changed:     20200312

nic-hdl-br:  RUMCU12
person:      RUTE MARIA DA CUNHA
e-mail:      rute@hrnet.slz.br
country:     BR
created:     20200307
changed:     20210220




IRR Check: 
anurag@devops01:~$ whois -h whois.radb.net 24.152.117.0/24
route:      24.152.117.0/24
descr:      CLARO S.A. Customer
origin:     AS270497
remarks:    Proxy Object
notify:     irradmin@embratel.net.br
mnt-by:     MAINT-AS4230
changed:    irradmin@embratel.net.br 20201204
source:     RADB
anurag@devops01:~$



Thanks. 

--
Anurag Bhatia


--
Anurag Bhatia