subnet.im

AS263508SIMNET TELECOMUNICACOES LTDA

BrazilRegistryLACNIC

As of 25th October 2026, AS263508 (SIMNET TELECOMUNICACOES LTDA), a network registered in Brazil with LACNIC, originates 16 IPv4 prefixes covering 4.1k addresses and 10 IPv6 prefixes. By IPv4 address space that makes it the 17,048th-largest of the 79,675 networks we see originating IPv4, and the 1,461st-largest of 7,990 in Brazil. It is seen behind 21 upstream networks, most often AS266181 (GOLDEN LINK) and AS265393 (FIRENET SERVIÇOS DE TELECOMUNICAÇÕES…), and in front of 4 downstream networks. 73% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

16

IPv6 prefixes

10

IPv4 addresses

4.1k

IPv6 /64s

2.2B

Upstream graph

The networks AS263508 is seen behind, one and two hops out, drawn from real AS paths.

AS263508Toward the internet core
Upstream graph for AS263508: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS263508SIMNET TELECOMUNI…This networkAS53181Avanca Telecom e …AS265393FIRENET SERVIÇOS …AS266181GOLDEN LINKAS269535TEC PLUS TELECOMU…AS271042BOT INTERNET E SE…AS13786Seaborn (Seabras …AS274464NEXUSLINK DATACEN…AS3356Lumen (Level 3)AS28283Adyl TelecomAS37468Angola CablesAS6939Hurricane Electri…AS28649Desktop Sigmanet …

Networks observed one and two hops upstream of AS263508 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

51

adjacent networks

Upstreams
2141%
Peers
2651%
Downstreams
48%

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

Upstreams of AS263508
NetworkCountryRelationshipPathsVantage pts
AS266181GOLDEN LINKBRPeer300137
AS265393FIRENET SERVIÇOS DE TELECOMUNICAÇÕES LTDABRPeer278139
AS269535TEC PLUS TELECOMUNICAO LTDABRPeer257138
AS53181Avanca Telecom e Servicos LTDABRPeer12694
AS271042BOT INTERNET E SERVICOS DE TELECOMUNICACOES LTDABRPeer12663
AS264014Led Internet EireliBRPeer110110
AS263903INFORBARRA TELECOMBRPeer9898
AS269690VILACONECTA SOLUCOES EM TECNOLOGIA LTDABRPeer7676
AS61591WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - MEBRPeer7676
AS268417P.A THOMAZ MARCELINO & CIA EPP LTDABRPeer7676

Prefixes

All 26

The largest blocks AS263508 originates, widest first.

Largest prefixes originated by AS263508
PrefixAddressesVisibility
191.243.160.0/2425676/76
191.243.161.0/2425676/76
191.243.162.0/2425676/76
191.243.163.0/2425675/76
191.243.164.0/2425676/76
191.243.165.0/2425676/76
191.243.166.0/2425676/76
191.243.167.0/2425676/76
191.243.168.0/2425675/76
191.243.169.0/2425675/76

Routing health

How AS263508'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

  • Valid73.1%19
  • Invalid0.0%0
  • No ROA26.9%7

Propagation

  • Globally propagated90% of full-feed peers or more100.0%26
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 16 prefixes

IPv6 — 10 prefixes

  • /36268M × /6470.0%7
  • /37134M × /6420.0%2
  • /4016.8M × /6410.0%1

Recent changes

Announcements that started or stopped since 25th Sept 2026.

No announcement by AS263508 started or stopped in this period.

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