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AS266438GNS FIBRA

BrazilRegistryLACNIC

As of 27th September 2026, AS266438 (GNS FIBRA), a network registered in Brazil with LACNIC, originates 6 IPv4 prefixes covering 4.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 17,073rd-largest of the 79,540 networks we see originating IPv4, and the 1,459th-largest of 7,985 in Brazil. It is seen behind 14 upstream networks, most often AS4230 (Claro (Embratel)) and AS13786 (Seaborn (Seabras USA, LLC)), and in front of 10 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 43% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

6

IPv6 prefixes

1

IPv4 addresses

4.1k

IPv6 /64s

4.3B

Upstream graph

The networks AS266438 is seen behind, one and two hops out, drawn from real AS paths.

AS266438Toward the internet core
Upstream graph for AS266438: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS266438GNS FIBRAThis networkAS3356Lumen (Level 3)AS4230Claro (Embratel)AS6939Hurricane Electri…AS13786Seaborn (Seabras …AS52468UFINET PANAMA S.A.AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS35280F5 Networks SARLAS20130Depaul UniversityAS1299Arelion (fka. Tel…AS14537Continent 8 LLCAS22356Durand do Brasil …

Networks observed one and two hops upstream of AS266438 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

92

adjacent networks

Upstreams
1415%
Peers
6874%
Downstreams
1011%

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

Upstreams of AS266438
NetworkCountryRelationshipPathsVantage pts
AS4230Claro (Embratel)BRPeer20685
AS13786Seaborn (Seabras USA, LLC)USPeer14861
AS3356Lumen (Level 3)USPeer14872
AS6939Hurricane Electric LLCUSPeer9224
AS52468UFINET PANAMA S.A.PAPeer8729
AS174Cogent Communications, LLCUSPeer4942
AS14537Continent 8 LLCUSPeer244
AS35280F5 Networks SARLFRPeer234
AS10429Vivo (Telefônica Brasil)BRPeer157
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer142

Prefixes

The largest blocks AS266438 originates, widest first.

Largest prefixes originated by AS266438
PrefixAddressesVisibility
45.173.32.0/221k82/82
170.82.48.0/221k82/82
45.173.32.0/2351221/82
45.173.34.0/2351221/82
170.82.48.0/2351221/82
170.82.50.0/2351221/82
2804:37d4::/324.3B × /6464/65

Routing health

How AS266438'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 more42.9%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%57.1%4

Prefix sizes

IPv4 — 6 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 29th Aug 2026.

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