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AS271201Vianet Telecomunicacoes Ltda

BrazilRegistryLACNIC

As of 27th September 2026, AS271201 (Vianet Telecomunicacoes Ltda), a network registered in Brazil with LACNIC, originates 3 IPv4 prefixes covering 1k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 35,811th-largest of the 79,525 networks we see originating IPv4, and the 5,642nd-largest of 7,983 in Brazil. It is seen behind 10 upstream networks, most often AS267613 (ELETRONET S.A.) and AS6939 (Hurricane Electric LLC), and in front of 24 downstream networks. None of its announcements have a valid RPKI ROA. 67% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

3

IPv6 prefixes

3

IPv4 addresses

1k

IPv6 /64s

8.6B

Upstream graph

The networks AS271201 is seen behind, one and two hops out, drawn from real AS paths.

AS271201Toward the internet core
Upstream graph for AS271201: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS271201Vianet Telecomuni…This networkAS6939Hurricane Electri…AS14537Continent 8 LLCAS35280F5 Networks SARLAS267613ELETRONET S.A.AS268196LinkNet SolucoesAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS3356Lumen (Level 3)AS13786Seaborn (Seabras …AS174Cogent Communicat…AS37468Angola Cables

Networks observed one and two hops upstream of AS271201 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

111

adjacent networks

Upstreams
109%
Peers
7769%
Downstreams
2422%

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

Upstreams of AS271201
NetworkCountryRelationshipPathsVantage pts
AS267613ELETRONET S.A.BRPeer4,129140
AS6939Hurricane Electric LLCUSPeer1,56257
AS268196LinkNet SolucoesBRPeer1,23595
AS14537Continent 8 LLCUSPeer1434
AS35280F5 Networks SARLFRPeer1246
AS32590Valve CorporationUSPeer1092
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer932
AS137409GSL Networks Pty LTDAUPeer494
AS132337AxclusiveSGPeer321
AS1000LINK AMERICANUSPeer42

Prefixes

The largest blocks AS271201 originates, widest first.

Largest prefixes originated by AS271201
PrefixAddressesVisibility
179.49.186.0/2351280/81
179.49.184.0/2425680/81
179.49.185.0/2425680/81
2804:77d0::/324.3B × /6463/64
2804:77d0::/332.1B × /6410/64
2804:77d0:8000::/332.1B × /6410/64

Routing health

How AS271201'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%6

Propagation

  • Globally propagated90% of full-feed peers or more66.7%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%33.3%2

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 3 prefixes

  • /324.3B × /6433.3%1
  • /332.1B × /6466.7%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn2804:77d0:3f00::/4024th Sept 2026
  • Announced2804:77d0:3f00::/4022nd Sept 2026
  • Withdrawn2804:77d0:4000::/3421st Sept 2026
  • Withdrawn2804:77d0:8000::/3421st Sept 2026
  • Withdrawn2804:77d0::/3421st Sept 2026
  • Withdrawn2804:77d0:c000::/3421st Sept 2026

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