SUBNET.IM

AS61821Sincroniza Digital LTDA

BrazilRegistryLACNIC

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

2k

IPv6 /64s

4.3B

Upstream graph

The networks AS61821 is seen behind, one and two hops out, drawn from real AS paths.

AS61821Toward the internet core
Upstream graph for AS61821: 4 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS61821Sincroniza Digita…This networkAS53062GGNET TELECOMUNIC…AS267121ATPlus TelecomAS52320V.tal (GlobeNet)AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS61821 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS61821
NetworkCountryRelationshipPathsVantage pts
AS53062GGNET TELECOMUNICACOES LTDABRPeer217136
AS267121ATPlus TelecomBRPeer8477

Prefixes

The largest blocks AS61821 originates, widest first.

Largest prefixes originated by AS61821
PrefixAddressesVisibility
201.131.180.0/221k80/80
201.131.180.0/2351280/80
201.131.182.0/2351280/80
2804:19d4::/324.3B × /6461/62

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.