subnet.im

AS267201Fiber One Telecomunicações EIRELI

BrazilRegistryLACNIC

As of 23rd October 2026, AS267201 (Fiber One Telecomunicações EIRELI), a network registered in Brazil with LACNIC, originates 5 IPv4 prefixes covering 2k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 25,336th-largest of the 79,666 networks we see originating IPv4, and the 3,433rd-largest of 7,987 in Brazil. It is seen behind 9 upstream networks, most often AS263047 (CORP BR TELECOMUNICACOES LTDA - LINK…) and AS269416 (SEMEAR TELECOM EIRELI), and in front of 6 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 83% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

5

IPv6 prefixes

1

IPv4 addresses

2k

IPv6 /64s

4.3B

Upstream graph

The networks AS267201 is seen behind, one and two hops out, drawn from real AS paths.

AS267201Toward the internet core
Upstream graph for AS267201: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS267201Fiber One Telecom…This networkAS14537Continent 8 LLCAS35280F5 Networks SARLAS52468UFINET PANAMA S.A.AS263047CORP BR TELECOMUN…AS269416SEMEAR TELECOM EI…AS2914NTT America, Inc.AS32590Valve CorporationAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS22356Durand do Brasil …AS6939Hurricane Electri…AS13786Seaborn (Seabras …

Networks observed one and two hops upstream of AS267201 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

67

adjacent networks

Upstreams
913%
Peers
5278%
Downstreams
69%

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

Upstreams of AS267201
NetworkCountryRelationshipPathsVantage pts
AS263047CORP BR TELECOMUNICACOES LTDA - LINK FULLBRPeer636140
AS269416SEMEAR TELECOM EIRELIBRPeer23177
AS52468UFINET PANAMA S.A.PAPeer21472
AS35280F5 Networks SARLFRPeer64
AS14537Continent 8 LLCUSPeer53
AS137409GSL Networks Pty LTDAUPeer53
AS32590Valve CorporationUSPeer42
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer42
AS1000LINK AMERICANUSPeer11

Prefixes

The largest blocks AS267201 originates, widest first.

Largest prefixes originated by AS267201
PrefixAddressesVisibility
45.230.164.0/221k77/77
45.230.164.0/2425677/77
45.230.165.0/2425677/77
45.230.166.0/2425677/77
45.230.167.0/2425677/77
2804:49c0::/324.3B × /6410/64

Routing health

How AS267201'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%6
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more83.3%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%16.7%1

Prefix sizes

IPv4 — 5 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

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