subnet.im

AS263009FORTE TELECOM LTDA.

BrazilRegistryLACNICTypeEyeball

As of 12th November 2026, AS263009 (FORTE TELECOM LTDA.), an access network registered in Brazil with LACNIC, originates 21 IPv4 prefixes covering 17.7k addresses and 102 IPv6 prefixes. By IPv4 address space that makes it the 7,714th-largest of the 80,772 networks we see originating IPv4, and the 413th-largest of 8,032 in Brazil. It is seen behind 17 upstream networks, most often AS3356 (Lumen (Level 3)) and AS174 (Cogent Communications, LLC), and in front of 124 downstream networks. None of its announcements have a valid RPKI ROA. 6% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

21

IPv6 prefixes

102

IPv4 addresses

17.7k

IPv6 /64s

8.6B

Upstream graph

The networks AS263009 is seen behind, one and two hops out, drawn from real AS paths.

AS263009Toward the internet core
Upstream graph for AS263009: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS263009FORTE TELECOM LTD…This networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS32590Valve CorporationAS400282UPX US LLCAS151326DCConnect Communi…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS1299Arelion (fka. Tel…AS20130Depaul UniversityAS132337AxclusiveAS3257GTT Communication…

Networks observed one and two hops upstream of AS263009 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

2,177

adjacent networks

Upstreams
171%
Peers
2,03694%
Downstreams
1246%

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

Upstreams of AS263009
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer54,422138
AS174Cogent Communications, LLCUSPeer11,00889
AS6939Hurricane Electric LLCUSPeer1,22320
AS400282UPX US LLCUSPeer1,13070
AS32590Valve CorporationUSPeer1,0342
AS35280F5 Networks SARLFRPeer9446
AS1000LINK AMERICANUSPeer8202
AS16735Algar TelecomBRPeer41526
AS14537Continent 8 LLCUSPeer3854
AS999CORIX NETWORKSUSPeer3431

Prefixes

All 123

The largest blocks AS263009 originates, widest first.

Largest prefixes originated by AS263009
PrefixAddressesVisibility
186.192.48.0/204.1k78/78
187.63.96.0/204.1k78/78
186.237.48.0/212k78/78
170.84.52.0/221k78/78
186.237.48.0/221k1/78
186.237.52.0/221k1/78
170.84.52.0/235121/78
170.84.54.0/235121/78
170.84.52.0/242561/78
170.84.53.0/242561/78

Routing health

How AS263009'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%123

Propagation

  • Globally propagated90% of full-feed peers or more5.7%7
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%94.3%116

Prefix sizes

IPv4 — 21 prefixes

IPv6 — 102 prefixes

  • /324.3B × /641.0%1
  • /332.1B × /642.0%2
  • /4016.8M × /641.0%1
  • /424.2M × /641.0%1
  • /441M × /641.0%1
  • /4865.5k × /6494.1%96

Recent changes

Announcements that started or stopped since 13th Oct 2026.

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