AS12422 — EVONIK-AS Rellinghauser Str. 1-11

AS12422 announces 2 IPv4 prefixes covering 73,728 addresses and 2 IPv6 prefixes.

About this network

A German chemicals group announcing two IPv4 blocks and thirty-four IPv6 ones.

What it's used for

• Corporate connectivity. 73,728 addresses in just two IPv4 prefixes, 149.216.0.0/16 and 193.100.32.0/19, against thirty-four announced IPv6 prefixes and three observed BGP neighbours.

Notable

• Both IPv4 blocks carry netname EVONIK-NET, registered to Evonik Industries AG.
• The IPv6 space is 2407:ef00::/37 and its children, announced as a staircase — a /40, a /44, two /48s, a /47, a /46, a /45, a /43, a /42 and on down.
• The AS handle carries a street address: EVONIK-AS Rellinghauser Str. 1-11, the group's head office in Essen.

Interesting

• 2407::/16 is APNIC space. A German company announcing addresses from the Asia-Pacific registry means the allocation was made to an Asian arm of the business and then routed from the same AS as everything else. Corporate networks are one network; the registries are five.
• Thirty-four IPv6 prefixes covering one /37 is deaggregation on a scale the IPv4 side never attempts. Nothing forces a company to announce IPv6 in pieces the way address scarcity once forced IPv4, which makes this a choice about internal structure showing through to the routing table.

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

Announced prefixes

• 149.216.0.0/16
• 193.100.32.0/19
• 2407:ef00::/32
• 2a01:4bc0::/32

Upstream networks

• AS8881 1&1 Versatel GmbH
• AS2686 AT&T Enterprises, LLC
• AS2687 AT&T Enterprises, LLC

Adjacent networks

• AS8881 1&1 Versatel GmbH
• AS2686 AT&T Enterprises, LLC
• AS2687 AT&T Enterprises, LLC