subnet.im

AS263372Sertão Link

BrazilRegistryLACNIC

As of 23rd October 2026, AS263372 (Sertão Link), a network registered in Brazil with LACNIC, originates 3 IPv4 prefixes covering 4.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 17,060th-largest of the 79,666 networks we see originating IPv4, and the 1,462nd-largest of 7,987 in Brazil. It is seen behind 9 upstream networks, most often AS14840 (BR.DIGITAL) and AS28126 (BRISANET SERVICOS DE TELECOMUNICACOES…), and in front of 1 downstream network. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 50% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

4.1k

IPv6 /64s

4.3B

Upstream graph

The networks AS263372 is seen behind, one and two hops out, drawn from real AS paths.

AS263372Toward the internet core
Upstream graph for AS263372: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS263372Sertão LinkThis networkAS6939Hurricane Electri…AS14537Continent 8 LLCAS14840BR.DIGITALAS28126BRISANET SERVICOS…AS35280F5 Networks SARLAS20130Depaul UniversityAS132337AxclusiveAS2914NTT America, Inc.AS174Cogent Communicat…AS3356Lumen (Level 3)AS37468Angola CablesAS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS263372 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

58

adjacent networks

Upstreams
916%
Peers
4883%
Downstreams
12%

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

Upstreams of AS263372
NetworkCountryRelationshipPathsVantage pts
AS14840BR.DIGITAL BRPeer11071
AS28126BRISANET SERVICOS DE TELECOMUNICACOES S.ABRPeer10872
AS6939Hurricane Electric LLCUSPeer4522
AS35280F5 Networks SARLFRPeer104
AS14537Continent 8 LLCUSPeer104
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer62
AS32590Valve CorporationUSPeer62
AS137409GSL Networks Pty LTDAUPeer32
AS1000LINK AMERICANUSPeer21

Prefixes

The largest blocks AS263372 originates, widest first.

Largest prefixes originated by AS263372
PrefixAddressesVisibility
191.37.208.0/212k77/77
191.37.208.0/221k21/77
191.37.212.0/221k21/77
2804:1520::/324.3B × /6462/64

Routing health

How AS263372'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%4
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more50.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%50.0%2

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS263372 started or stopped in this period.

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