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AS273656OAC Tecnologia LTDA

BrazilRegistryLACNIC

As of 27th September 2026, AS273656 (OAC Tecnologia LTDA), a network registered in Brazil with LACNIC, originates 9 IPv4 prefixes covering 3.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 19,533rd-largest of the 79,525 networks we see originating IPv4, and the 1,737th-largest of 7,983 in Brazil. It is seen behind 9 upstream networks, most often AS61832 (Giga+ Empresas) and AS264525 (Coelho Tecnologia), and in front of 1 downstream network. 20% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 30% of its routes reach at least 90% of full-feed peers, and 7 prefixes are also originated by another network.

At a glance

IPv4 prefixes

9

IPv6 prefixes

1

IPv4 addresses

3.3k

IPv6 /64s

4.3B

Upstream graph

The networks AS273656 is seen behind, one and two hops out, drawn from real AS paths.

AS273656Toward the internet core
Upstream graph for AS273656: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS273656OAC Tecnologia LT…This networkAS6939Hurricane Electri…AS14537Continent 8 LLCAS32590Valve CorporationAS61832Giga+ EmpresasAS264525Coelho TecnologiaAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS3356Lumen (Level 3)AS13786Seaborn (Seabras …AS37468Angola CablesAS7195EdgeUno

Networks observed one and two hops upstream of AS273656 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

55

adjacent networks

Upstreams
916%
Peers
4582%
Downstreams
12%

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

Upstreams of AS273656
NetworkCountryRelationshipPathsVantage pts
AS61832Giga+ EmpresasBRPeer426120
AS264525Coelho TecnologiaBRPeer8844
AS6939Hurricane Electric LLCUSPeer2813
AS14537Continent 8 LLCUSPeer93
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer82
AS35280F5 Networks SARLFRPeer82
AS32590Valve CorporationUSPeer82
AS1000LINK AMERICANUSPeer51
AS132337AxclusiveSGAdjacent21

Prefixes

The largest blocks AS273656 originates, widest first.

Largest prefixes originated by AS273656
PrefixAddressesVisibility
38.188.104.0/221k56/81
38.226.118.0/2351244/81
38.188.104.0/2425651/81
38.188.105.0/2425651/81
38.188.106.0/2425651/81
38.188.107.0/2425651/81
38.226.119.0/2425644/81
154.216.129.0/2425681/81
154.216.130.0/2425681/81
2804:8a3c::/324.3B × /6462/64

Routing health

How AS273656'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

  • Valid20.0%2
  • Invalid0.0%0
  • No ROA80.0%8

Propagation

  • Globally propagated90% of full-feed peers or more30.0%3
  • Partially propagated40% to 90%70.0%7
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 9 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

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.