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AS274733COMPANHIA DE SANEAMENTO BASICO DO EST. DE SAO

BrazilRegistryLACNIC

As of 24th October 2026, AS274733 (COMPANHIA DE SANEAMENTO BASICO DO EST.…), a network registered in Brazil with LACNIC, originates 2 IPv4 prefixes covering 1k addresses. By IPv4 address space that makes it the 35,819th-largest of the 79,642 networks we see originating IPv4, and the 5,638th-largest of 7,990 in Brazil. It is seen behind 1 upstream network, most often AS10429 (Vivo (Telefônica Brasil)). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

2

IPv6 prefixes

0

IPv4 addresses

1k

IPv6 /64s

0

Upstream graph

The networks AS274733 is seen behind, one and two hops out, drawn from real AS paths.

AS274733Toward the internet core
Upstream graph for AS274733: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS274733COMPANHIA DE SANE…This networkAS10429Vivo (Telefônica …AS1000LINK AMERICANAS12956Telxius (Telefoni…

Networks observed one and two hops upstream of AS274733 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS274733
NetworkCountryRelationshipPathsVantage pts
AS10429Vivo (Telefônica Brasil)BRPeer15276

Prefixes

The largest blocks AS274733 originates, widest first.

Largest prefixes originated by AS274733
PrefixAddressesVisibility
200.144.74.0/2351276/76
200.144.76.0/2351276/76

Routing health

How AS274733's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS274733 started or stopped in this period.

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