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AS266143UP LINK INTERNET BANDA LARGA

BrazilRegistryLACNIC

As of 27th September 2026, AS266143 (UP LINK INTERNET BANDA LARGA), a network registered in Brazil with LACNIC, originates 4 IPv4 prefixes covering 2.6k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 23,024th-largest of the 79,536 networks we see originating IPv4, and the 3,033rd-largest of 7,983 in Brazil. It is seen behind 4 upstream networks, most often AS271253 (LINK BRASIL TELECOMUNICACOES LTDA) and AS10429 (Vivo (Telefônica Brasil)), and in front of 10 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

4

IPv6 prefixes

3

IPv4 addresses

2.6k

IPv6 /64s

8.6B

Upstream graph

The networks AS266143 is seen behind, one and two hops out, drawn from real AS paths.

AS266143Toward the internet core
Upstream graph for AS266143: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS266143UP LINK INTERNET …This networkAS1031PEER 1031 LLCAS10429Vivo (Telefônica …AS24940Hetzner Online Gm…AS271253LINK BRASIL TELEC…AS6939Hurricane Electri…AS1000LINK AMERICANAS12956Telxius (Telefoni…AS6453TATA Communicatio…AS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS266143 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

34

adjacent networks

Upstreams
412%
Peers
2059%
Downstreams
1029%

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

Upstreams of AS266143
NetworkCountryRelationshipPathsVantage pts
AS271253LINK BRASIL TELECOMUNICACOES LTDABRPeer1,434142
AS10429Vivo (Telefônica Brasil)BRPeer1,224145
AS1031PEER 1031 LLCUSPeer716
AS24940Hetzner Online GmbHDEPeer101

Prefixes

The largest blocks AS266143 originates, widest first.

Largest prefixes originated by AS266143
PrefixAddressesVisibility
160.20.20.0/221k82/82
160.20.20.0/2351281/82
160.20.22.0/2351281/82
186.251.206.0/2351281/82
2804:3b58::/324.3B × /6465/65
2804:3b58::/332.1B × /6464/65
2804:3b58:8000::/332.1B × /6464/65

Routing health

How AS266143'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

  • Valid100.0%7
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%7
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 4 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.

  • Announced186.251.206.0/2425th Sept 2026
  • Withdrawn186.251.206.0/2425th Sept 2026
  • Withdrawn186.251.206.0/2421st Sept 2026

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