AS11392 Nosis Laboratorio de Investigacion y Desarrollo S.A.

AS11392 is held by Nosis Laboratorio de Investigación y Desarrollo S.A., a Buenos Aires company founded in 1988 that sells commercial and financial information — credit and counterparty background data, compliance and fraud screening, foreign-trade records and marketing analytics — to Argentine businesses. The AS carries Nosis's own platform.

What it's used for

RIS sees four contiguous IPv4 /24s, 186.0.152.0/24 through 186.0.155.0/24 — 1,024 addresses — no IPv6, and two observed BGP neighbours. 186.0.0.0/8 is LACNIC space, consistent with an Argentine holder. Two upstreams and one contiguous kilo-block is a multi-homed enterprise, not a provider: a data company whose product is delivered as web portals and APIs needs its query endpoints reachable through more than one carrier, but has no reason to peer widely.

Notable

The reverse DNS names the workload directly. 186.0.154.133 resolves to ecommercenlb.nosis.com — a load balancer fronting the commercial platform, exactly the kind of host a subscription data service puts on the public edge.

Interesting

The other captured PTR, ppp-133.nosis.com.ar, is worth reading carefully rather than over-reading. ppp- names an access technology, a legacy point-to-point dial or leased-line naming convention, not a customer type, and one hostname is not evidence that Nosis operates as an ISP. It most likely survives from an older era when data vendors in Argentina delivered their feeds over dial-up sessions to subscriber terminals. The RDAP prefix lookups in the evidence pack failed, so registrant confirmation is absent — that is missing data, not a clearance, and the identification here rests on the rDNS and the holder record.