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AS28209Under Servicos de Internet Ltda

BrazilRegistryLACNIC

As of 27th September 2026, AS28209 (Under Servicos de Internet Ltda), a network registered in Brazil with LACNIC, originates 40 IPv4 prefixes covering 48.9k addresses and 7 IPv6 prefixes. By IPv4 address space that makes it the 4,521st-largest of the 79,525 networks we see originating IPv4, and the 137th-largest of 7,983 in Brazil. It is seen behind 13 upstream networks, most often AS3356 (Lumen (Level 3)) and AS22381 (SAMM (Megatelecom)), and in front of 3 downstream networks. 96% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 91% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

40

IPv6 prefixes

7

IPv4 addresses

48.9k

IPv6 /64s

5.1B

Upstream graph

The networks AS28209 is seen behind, one and two hops out, drawn from real AS paths.

AS28209Toward the internet core
Upstream graph for AS28209: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS28209Under Servicos de…This networkAS3356Lumen (Level 3)AS6939Hurricane Electri…AS22381SAMM (Megatelecom)AS35280F5 Networks SARLAS264409Huge NetworksAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS20130Depaul UniversityAS6762Telecom Italia Sp…AS37468Angola CablesAS3491PCCW Global (HK) …AS57463NetIX Communicati…

Networks observed one and two hops upstream of AS28209 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

74

adjacent networks

Upstreams
1318%
Peers
5878%
Downstreams
34%

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

Upstreams of AS28209
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer1,839108
AS22381SAMM (Megatelecom)BRPeer1,273127
AS264409Huge NetworksBRPeer40280
AS6939Hurricane Electric LLCUSPeer6711
AS35280F5 Networks SARLFRPeer454
AS32590Valve CorporationUSPeer422
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer422
AS14537Continent 8 LLCUSPeer392
AS132337AxclusiveSGPeer361
AS52925Ascenty Data Centers e Telecomunicações S/ABRPeer51

Prefixes

All 47

The largest blocks AS28209 originates, widest first.

Largest prefixes originated by AS28209
PrefixAddressesVisibility
177.70.0.0/198.2k81/81
177.70.0.0/204.1k81/81
177.70.16.0/204.1k81/81
189.113.0.0/204.1k81/81
189.113.0.0/212k81/81
189.113.8.0/212k81/81
177.70.0.0/221k81/81
177.70.4.0/221k81/81
177.70.8.0/221k81/81
177.70.12.0/221k81/81

Routing health

How AS28209'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

  • Valid95.7%45
  • Invalid0.0%0
  • No ROA4.3%2

Propagation

  • Globally propagated90% of full-feed peers or more91.5%43
  • Partially propagated40% to 90%4.3%2
  • Seen by few peersUnder 40%4.3%2

Prefix sizes

IPv4 — 40 prefixes

IPv6 — 7 prefixes

  • /324.3B × /6414.3%1
  • /36268M × /6428.6%2
  • /37134M × /6428.6%2
  • /4865.5k × /6428.6%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

13 announced and 11 withdrawn in all; the most recent are shown.

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