AS16083 — STACK-AS

AS16083 announces 4 IPv4 prefixes covering 15,360 addresses and 1 IPv6 prefixes.

About this network

Four blocks over eighteen years, one upstream, and an operations contact under a different legal name.

What it's used for

• A hosting and network services company. Four IPv4 prefixes and one IPv6 /32 announced from the Russian Federation, fifteen thousand three hundred and sixty addresses, through a single observed BGP neighbour.

Notable

• All four netnames follow the same template of country code, brand and date, and the dates span eighteen years from the year two thousand onwards.
• The blocks get smaller as the dates get later, from a /20 early on to a /22 at the end, which is the registry tightening rather than the company shrinking.
• Every block lists the company under one legal form and an operations centre under a different one, so the record names two entities sharing a brand.
• There is no separate abuse contact anywhere in the record.
• Twelve addresses were queried for reverse DNS and none returned a name.

Interesting

• A single upstream for fifteen thousand addresses is the most striking number here. It means every customer's reachability depends on one commercial relationship, which is cheap and works until it does not.
• Two legal forms behind one brand usually means an operating company and a licence holder. Which one appears in a registry field depends on who filled the form in, and the pair survives because nothing ever forces them to be reconciled.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 81.16.208.0/22
• 91.106.112.0/21
• 178.209.192.0/19
• 217.73.192.0/20
• 2a00:eb9::/32

Upstream networks

• AS200044 Stack Group, LLC

Adjacent networks

• AS200044 Stack Group, LLC

Internet exchanges

• GNM Internet Exchange Amsterdam — Amsterdam, Netherlands