AS12939 HANSE-AS

512 addresses, one neighbour, and a registry contact called simply "Internet Registry".

What it's used for

• The network of a Swedish holding company. 512 addresses in one IPv4 prefix, a single observed BGP neighbour, and no IPv6 announced.

Notable

• The whole inventory is 195.26.28.0/23, netname HANSE-1.
• One of the registered contacts is named Internet Registry, with no company attached.
• First observed in the routing archive in June 2003.
• Three addresses were sampled and none returned a name.

Interesting

• HANSE-1 is a netname expecting a HANSE-2 that never arrived. Numbering the first of something is an act of optimism, and address registries are full of orphaned first entries where the network stopped growing before the naming scheme did.
• A contact object literally called Internet Registry is a placeholder that became permanent. Whoever created it needed a name for the role rather than the person, and the registry accepted it, so the public record of who is responsible for this block says nothing more specific than the category of thing they are.
• A holding company with its own AS is announcing space for whatever sits underneath it. Holding companies do not have networks; their subsidiaries do, and the registration follows the legal entity that signed rather than the operation that uses the addresses.
• 512 addresses and one uplink is the minimum viable independent network: enough space to matter to the owner, not enough to interest anyone else, and a single path in and out.