At Vivo in Brazil, AS 27699 for the broadband service using AS 10429 resolvers, recursive DNS (powered by Akamai / Nominum) can't resolve some Google services:
$ dig +noall +question +answer lh3.googleusercontent.com @200.204.0.10 # Vivo recursive DNS ;lh3.googleusercontent.com. IN A $ dig +noall +question +answer lh3.googleusercontent.com @200.204.0.138 # Vivo recursive DNS ;lh3.googleusercontent.com. IN A $ dig +noall +question +answer lh3.googleusercontent.com @2001:12e0:0:1025:a080::2 # DNS recursivo da Vivo ;lh3.googleusercontent.com. IN A $ dig +noall +question +answer lh3.googleusercontent.com @2001:12e0:0:1025:a080::3 # DNS recursivo da Vivo ;lh3.googleusercontent.com. IN A $ dig +noall +question +answer lh3.googleusercontent.com @8.8.8.8 # Google Public DNS ;lh3.googleusercontent.com. IN A lh3.googleusercontent.com. 21449 IN CNAME googlehosted.l.googleusercontent.com. googlehosted.l.googleusercontent.com. 149 IN A 172.217.172.129 $ dig +noall +question +answer lh3.googleusercontent.com @1.1.1.1 # Cloudflare ;lh3.googleusercontent.com. IN A lh3.googleusercontent.com. 9983 IN CNAME googlehosted.l.googleusercontent.com. googlehosted.l.googleusercontent.com. 67 IN A 172.217.29.161 $ dig +noall +question +answer lh3.googleusercontent.com @208.67.222.222 # OpenDNS ;lh3.googleusercontent.com. IN A lh3.googleusercontent.com. 79231 IN CNAME googlehosted.l.googleusercontent.com. googlehosted.l.googleusercontent.com. 300 IN A 216.58.202.129 Tests from RIPE Atlas in Brazill (links [1] and [2]) show more AS27699 (TELEFÔNICA BRASIL S.A.) users getting NXDOMAIN for lh3.googleusercontent.com. If someone from Akamai could relay the message, it would be appreciated. (Original Portuguese message at https://eng.registro.br/pipermail/caiu/2020-March/065373.html) [1] https://atlas.ripe.net/measurements/24326914/ [2] https://atlas.ripe.net/measurements/24326917/
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