subnet.im

AS28222INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS

BrazilRegistryLACNIC

As of 22nd October 2026, AS28222 (INSTITUTO NACIONAL DE PESQUISAS…), a network registered in Brazil with LACNIC, originates 6 IPv4 prefixes covering 66.3k addresses. By IPv4 address space that makes it the 3,421st-largest of the 79,663 networks we see originating IPv4, and the 96th-largest of 7,986 in Brazil. It is seen behind 1 upstream network, most often AS1916 (RNP - Rede Nacional de Ensino e Pesquisa), and in front of 2 downstream networks. None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

6

IPv6 prefixes

0

IPv4 addresses

66.3k

IPv6 /64s

0

Upstream graph

The networks AS28222 is seen behind, one and two hops out, drawn from real AS paths.

AS28222Toward the internet core
Upstream graph for AS28222: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS28222INSTITUTO NACIONA…This networkAS1916RNP - Rede Nacion…AS174Cogent Communicat…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS28222 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

6

adjacent networks

Upstreams
117%
Peers
350%
Downstreams
233%

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

Upstreams of AS28222
NetworkCountryRelationshipPathsVantage pts
AS1916RNP - Rede Nacional de Ensino e PesquisaBRPeer71477

Prefixes

The largest blocks AS28222 originates, widest first.

Largest prefixes originated by AS28222
PrefixAddressesVisibility
150.163.0.0/1732.8k77/77
150.163.128.0/1816.4k77/77
150.163.192.0/1816.4k77/77
150.163.12.0/2425677/77
150.163.68.0/2425677/77
150.163.73.0/2425677/77

Routing health

How AS28222'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%6

Propagation

  • Globally propagated90% of full-feed peers or more100.0%6
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 6 prefixes

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

  • Withdrawn150.163.128.0/1716th Oct 2026

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