AS11097 EMPRESA BRASILEIRA DE PESQUISA AGROPECUARIA

AS11097 is Embrapa, the Empresa Brasileira de Pesquisa Agropecuária — the Brazilian Agricultural Research Corporation, a state-owned research enterprise linked to Brazil's agriculture ministry and one of the world's largest tropical-agriculture research organisations. Every sampled reverse-DNS name sits under embrapa.br, so the space it announces is its own.

What it's used for

The corporation's research network. The AS announces 6 IPv4 prefixes (~17,664 addresses) — dominated by a single 200.202.128.0/18 — plus 6 IPv6 prefixes from Brazil's 2801:80::/32 LACNIC space, with 5 observed neighbours. A handful of upstreams and a large contiguous block is the shape of an institution consuming connectivity for its own sites, not one selling it.

Notable

The reverse DNS is a map of Embrapa's decentralised structure. Hostnames carry the unit code of the research centre they belong to: cnptia.embrapa.br (Informática Agropecuária, Campinas), cnpdia.embrapa.br (Instrumentação Agropecuária, São Carlos), cnpm.embrapa.br (Monitoramento por Satélite) and cppse.embrapa.br (Pecuária Sudeste). Embrapa runs dozens of such centres across Brazil, and the AS is the common internet edge stitching them together — named hosts like achernar, aion and elantra are individual servers, not subscriber pools.

Interesting

The prefix registrants come back as bare LACNIC/NIC.br numeric identifiers rather than names, which is normal for Brazilian registrations and is not the "unrelated third-party registrant" pattern that flags leased address space. The rDNS settles it: first-party names on every block, which is what a real operator holding its own inventory looks like.