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AS263903INFORBARRA TELECOM

BrazilRegistryLACNICTypeCarrier

As of 27th September 2026, AS263903 (INFORBARRA TELECOM), a transit carrier registered in Brazil with LACNIC, originates 19 IPv4 prefixes covering 7.2k addresses and 10 IPv6 prefixes. By IPv4 address space that makes it the 13,056th-largest of the 79,523 networks we see originating IPv4, and the 991st-largest of 7,982 in Brazil. It is seen behind 51 upstream networks, most often AS3356 (Lumen (Level 3)) and AS6939 (Hurricane Electric LLC), and in front of 112 downstream networks. 69% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 79% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

19

IPv6 prefixes

10

IPv4 addresses

7.2k

IPv6 /64s

3.2B

Upstream graph

The networks AS263903 is seen behind, one and two hops out, drawn from real AS paths.

AS263903Toward the internet core
Upstream graph for AS263903: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS263903INFORBARRA TELECOMThis networkAS3356Lumen (Level 3)AS6939Hurricane Electri…AS10429Vivo (Telefônica …AS14537Continent 8 LLCAS264409Huge NetworksAS3549Lumen (fka. Globa…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS12956Telxius (Telefoni…AS3491PCCW Global (HK) …AS57463NetIX Communicati…

Networks observed one and two hops upstream of AS263903 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

475

adjacent networks

Upstreams
5111%
Peers
31266%
Downstreams
11224%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 51.

Upstreams of AS263903
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer25,610128
AS6939Hurricane Electric LLCUSPeer6,94968
AS264409Huge NetworksBRPeer2,295121
AS10429Vivo (Telefônica Brasil)BRPeer1,14170
AS14537Continent 8 LLCUSPeer1,0524
AS35280F5 Networks SARLFRPeer1,0325
AS18106Viewqwest Pte LtdSGPeer9724
AS32590Valve CorporationUSPeer8493
AS9002RETN LimitedGBPeer7516
AS49544i3D.net B.VNLPeer6862

Prefixes

All 29

The largest blocks AS263903 originates, widest first.

Largest prefixes originated by AS263903
PrefixAddressesVisibility
138.204.140.0/2351281/81
138.204.142.0/2351281/81
149.78.176.0/2351281/81
149.78.180.0/2351280/81
149.78.182.0/2351280/81
191.128.0.0/2351281/81
191.128.2.0/2351281/81
191.128.4.0/2351281/81
191.128.6.0/2351281/81
138.204.140.0/2425613/81

Routing health

How AS263903'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

  • Valid69.0%20
  • Invalid0.0%0
  • No ROA31.0%9

Propagation

  • Globally propagated90% of full-feed peers or more79.3%23
  • Partially propagated40% to 90%6.9%2
  • Seen by few peersUnder 40%13.8%4

Prefix sizes

IPv4 — 19 prefixes

IPv6 — 10 prefixes

  • /35537M × /6420.0%2
  • /36268M × /6480.0%8

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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