subnet.im

AS266409SECW TELECOM

BrazilRegistryLACNIC

As of 29th September 2026, AS266409 (SECW TELECOM), a network registered in Brazil with LACNIC, originates 6 IPv4 prefixes covering 2.8k addresses and 12 IPv6 prefixes. By IPv4 address space that makes it the 22,372nd-largest of the 79,607 networks we see originating IPv4, and the 2,920th-largest of 7,989 in Brazil. It is seen behind 11 upstream networks, most often AS7195 (EdgeUno) and AS13786 (Seaborn (Seabras USA, LLC)), and in front of 42 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 94% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

6

IPv6 prefixes

12

IPv4 addresses

2.8k

IPv6 /64s

4.3B

Upstream graph

The networks AS266409 is seen behind, one and two hops out, drawn from real AS paths.

AS266409Toward the internet core
Upstream graph for AS266409: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS266409SECW TELECOMThis networkAS6939Hurricane Electri…AS7195EdgeUnoAS13786Seaborn (Seabras …AS14537Continent 8 LLCAS52468UFINET PANAMA S.A.AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS32590Valve CorporationAS22356Durand do Brasil …AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS266409 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

148

adjacent networks

Upstreams
117%
Peers
9564%
Downstreams
4228%

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

Upstreams of AS266409
NetworkCountryRelationshipPathsVantage pts
AS7195EdgeUnoCOPeer6,864137
AS13786Seaborn (Seabras USA, LLC)USPeer3,023122
AS52468UFINET PANAMA S.A.PAPeer1,747146
AS14537Continent 8 LLCUSPeer1163
AS6939Hurricane Electric LLCUSPeer10829
AS35280F5 Networks SARLFRPeer912
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer882
AS32590Valve CorporationUSPeer812
AS1000LINK AMERICANUSPeer662
AS132337AxclusiveSGPeer531

Prefixes

The largest blocks AS266409 originates, widest first.

Largest prefixes originated by AS266409
PrefixAddressesVisibility
170.81.68.0/221k82/82
170.81.68.0/2351282/82
170.81.70.0/2351282/82
170.81.68.0/2425682/82
170.81.69.0/2425682/82
170.81.70.0/2425681/82
2804:3764::/324.3B × /6465/65
2804:3764:40::/441M × /6464/65
2804:3764:1a70::/441M × /6465/65
2804:3764:1a80::/441M × /6465/65

Routing health

How AS266409'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%18
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more94.4%17
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%5.6%1

Prefix sizes

IPv4 — 6 prefixes

IPv6 — 12 prefixes

  • /324.3B × /648.3%1
  • /441M × /6425.0%3
  • /4865.5k × /6466.7%8

Recent changes

Announcements that started or stopped since 30th Aug 2026.

No announcement by AS266409 started or stopped in this period.

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