AS12230 — -Reserved AS-

Network type: hosting

AS12230 announces 1 IPv4 prefixes covering 256 addresses and 1 IPv6 prefixes.

About this network

A /24 and a /40: sixteen million times more IPv6 than IPv4, on one upstream.

What it's used for

• Hosting and connectivity. 256 IPv4 addresses in one /24, one IPv6 2602:f478::/40, and a single observed BGP neighbour.

Notable

• The IPv4 block, 204.9.189.0/24, is netname TB-V4, registered to Tablebound LLC.
• V4 in the netname distinguishes it from the address family the company also holds.
• A /40 is a large IPv6 allocation, several steps up from the /48 a single site is given.
• The AS handle in the inventory reads -Reserved AS-.

Interesting

• The two allocations describe completely different ambitions. One /24 is what IPv4 will still give a new network in 2020s conditions, roughly nothing; a /40 contains 256 /48s, which is sized for handing a site's worth of addresses to each of hundreds of customers.
• Labelling the IPv4 block V4 only makes sense once there is a second family to disambiguate from, so the netname was written by somebody who already had the IPv6 space in hand or knew it was coming.
• One neighbour puts a ceiling on all of it for now. The addressing plan is built for a network considerably larger than the routing currently is.

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

Announced prefixes

• 204.9.189.0/24
• 2602:f478::/40

Upstream networks

• AS33182 HostDime.com, Inc.

Adjacent networks

• AS33182 HostDime.com, Inc.