AS15804 — AS15804

AS15804 announces 8 IPv4 prefixes covering 7,424 addresses and 0 IPv6 prefixes.

About this network

Every registry lookup for this number failed, so what is left is the routing table and nothing else.

What it's used for

• Unknown. Eight IPv4 prefixes are announced, no IPv6, seven thousand four hundred and twenty-four addresses, through a single observed BGP neighbour.

Notable

• The lookup for the holder failed, and so did the lookup for every one of the eight blocks, so the owner, the country and the netnames are unknown rather than absent.
• The AS handle is the two letters for an autonomous system followed by the number itself, which is what the record shows when no name has been set.
• All eight blocks come out of one range, split into two prefixes of one size, two of the next, one of the next and three of the smallest.
• The three smallest sit inside the space the larger ones already cover, so some addresses are announced twice at different lengths.
• Eighteen addresses were queried for reverse DNS and none returned a name.
• The routing archive has carried this number since the earliest data it holds.

Interesting

• Routing and registration are separate systems, and this is what it looks like when only one of them answers. The addresses are reachable, the path to them is visible, and the question of who they belong to has no answer here.
• A quarter of a century of announcements from one range behind one upstream describes a network that has been doing the same thing, quietly, for as long as the archive has existed.

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

Announced prefixes

• 212.12.224.0/22
• 212.12.229.0/24
• 212.12.231.0/24
• 212.12.232.0/21
• 212.12.240.0/21
• 212.12.248.0/22
• 212.12.252.0/24
• 212.12.254.0/23

Upstream networks

• AS20928 The Noor Group

Adjacent networks

• AS20928 The Noor Group