AS28304

UPSTREAMS4

ASN	DESCRIPTION	IPv4	IPv6	OBSERVATIONS
AS17222	MUNDIVOX DO BRASIL LTDA	✓	✗	16
AS4230	CLARO S.A.	✓	✗	12
AS10429	TELEFONICA BRASIL S.A	✓	✗	10
AS22381	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	✓	✗	10

The figures come from the routing tables our peers give us. This number is seen from 4 separate vantage points. A peer that shares an internet exchange with this network and carries only a small share of its paths is not counted as an upstream: a transit provider carries the whole table, an IX peer only its own announcements. Internet exchange data comes from PeeringDB. Figures are from a dump taken 4 hours ago.