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AS266445SEA TELECOM LTDA

BrazilRegistryLACNIC

As of 27th September 2026, AS266445 (SEA TELECOM LTDA), a network registered in Brazil with LACNIC, originates 12 IPv4 prefixes covering 11.8k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 9,690th-largest of the 79,540 networks we see originating IPv4, and the 623rd-largest of 7,985 in Brazil. It is seen behind 13 upstream networks, most often AS7738 (V.tal (fka Telemar)) and AS4230 (Claro (Embratel)), and in front of 37 downstream networks. 53% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 87% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

12

IPv6 prefixes

3

IPv4 addresses

11.8k

IPv6 /64s

4.3B

Upstream graph

The networks AS266445 is seen behind, one and two hops out, drawn from real AS paths.

AS266445Toward the internet core
Upstream graph for AS266445: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS266445SEA TELECOM LTDAThis networkAS174Cogent Communicat…AS4230Claro (Embratel)AS6939Hurricane Electri…AS7738V.tal (fka Telema…AS14537Continent 8 LLCAS151326DCConnect Communi…AS1299Arelion (fka. Tel…AS35280F5 Networks SARLAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS8167V.talAS52320V.tal (GlobeNet)

Networks observed one and two hops upstream of AS266445 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

145

adjacent networks

Upstreams
139%
Peers
9566%
Downstreams
3726%

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

Upstreams of AS266445
NetworkCountryRelationshipPathsVantage pts
AS7738V.tal (fka Telemar)BRPeer6,964146
AS4230Claro (Embratel)BRPeer4,830147
AS174Cogent Communications, LLCUSPeer398141
AS6939Hurricane Electric LLCUSPeer36627
AS14537Continent 8 LLCUSPeer1824
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer1562
AS1000LINK AMERICANUSPeer1272
AS35280F5 Networks SARLFRPeer1184
AS132337AxclusiveSGPeer1011
AS32590Valve CorporationUSPeer982

Prefixes

The largest blocks AS266445 originates, widest first.

Largest prefixes originated by AS266445
PrefixAddressesVisibility
149.102.64.0/198.2k82/82
170.82.180.0/221k82/82
149.102.64.0/2425682/82
149.102.65.0/2425682/82
149.102.67.0/2425682/82
149.102.81.0/2425681/82
149.102.83.0/2425613/82
149.102.85.0/2425620/82
170.82.180.0/2425682/82
170.82.181.0/2425682/82

Routing health

How AS266445'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

  • Valid53.3%8
  • Invalid0.0%0
  • No ROA46.7%7

Propagation

  • Globally propagated90% of full-feed peers or more86.7%13
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%13.3%2

Prefix sizes

IPv4 — 12 prefixes

IPv6 — 3 prefixes

  • /324.3B × /6433.3%1
  • /4865.5k × /6466.7%2

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.