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AS271291CS+TELECOMUNICACOES LTDA

BrazilRegistryLACNIC

As of 14th November 2026, AS271291 (CS+TELECOMUNICACOES LTDA), a network registered in Brazil with LACNIC, originates 4 IPv4 prefixes covering 1k addresses and 7 IPv6 prefixes. By IPv4 address space that makes it the 36,538th-largest of the 80,840 networks we see originating IPv4, and the 5,777th-largest of 8,036 in Brazil. It is seen behind 3 upstream networks, most often AS269194 (ST1 INTERNET) and AS265269 (MEGA TELE INFORMATICA), and in front of 6 downstream networks. 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

4

IPv6 prefixes

7

IPv4 addresses

1k

IPv6 /64s

12.9B

Upstream graph

The networks AS271291 is seen behind, one and two hops out, drawn from real AS paths.

AS271291Toward the internet core
Upstream graph for AS271291: 7 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS271291CS+TELECOMUNICACO…This networkAS265269MEGA TELE INFORMA…AS269194ST1 INTERNETAS269558CONECT SOLUCTIONAS6762Telecom Italia Sp…AS3356Lumen (Level 3)AS7195EdgeUnoAS37468Angola Cables

Networks observed one and two hops upstream of AS271291 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

15

adjacent networks

Upstreams
320%
Peers
640%
Downstreams
640%

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

Upstreams of AS271291
NetworkCountryRelationshipPathsVantage pts
AS269194ST1 INTERNETBRPeer866132
AS265269MEGA TELE INFORMATICABRPeer18932
AS269558CONECT SOLUCTIONBRPeer15678

Prefixes

The largest blocks AS271291 originates, widest first.

Largest prefixes originated by AS271291
PrefixAddressesVisibility
200.80.124.0/2425678/78
200.80.125.0/2425678/78
200.80.126.0/2425678/78
200.80.127.0/2425678/78
2804:7934::/324.3B × /6463/64
2804:7934::/332.1B × /6463/64
2804:7934:8000::/332.1B × /6463/64
2804:7934::/341.1B × /6463/64
2804:7934:4000::/341.1B × /6463/64
2804:7934:8000::/341.1B × /6463/64

Routing health

How AS271291'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%11

Propagation

  • Globally propagated90% of full-feed peers or more100.0%11
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 4 prefixes

IPv6 — 7 prefixes

  • /324.3B × /6414.3%1
  • /332.1B × /6428.6%2
  • /341.1B × /6457.1%4

Recent changes

Announcements that started or stopped since 15th Oct 2026.

No announcement by AS271291 started or stopped in this period.

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