AS12553 — GRAWEHR

AS12553 announces 1 IPv4 prefixes covering 256 addresses and 1 IPv6 prefixes.

About this network

A network registered to one named person, peering with 47 others from a single /24.

What it's used for

• Independent connectivity. 256 IPv4 addresses in one /24, one IPv6 /47, and 47 observed BGP neighbours.

Notable

• The registry holder is not a company but an individual: Andreas Grawehr.
• The one IPv4 block, 193.105.5.0/24, is netname GRAWEHR-net1 — a surname in capitals with a lower-case net1 bolted on.
• The IPv6 announcement is a /47, an odd size in a range where /48s are the norm.
• Forty-seven neighbours against 256 addresses.

Interesting

• Forty-seven adjacencies is peering-network territory, and reaching it from a single /24 registered to a person is unusual enough to be the whole story. Somebody turned up at the Swiss exchanges and said yes to everyone with an open peering policy, which costs port fees and patience rather than address space.
• GRAWEHR-net1 is a netname written by the person it belongs to. Company records get typed by whoever handles the paperwork and come out uniformly shouted; this one has a considered capital for the name and none for the number, because it was written by hand once and meant something to its author.
• A /47 rather than a /48 means two adjacent /48s announced together. It is the smallest possible gesture toward wanting more than the default.

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

Announced prefixes

• 193.105.5.0/24
• 2001:67c:1028::/47

Upstream networks

• AS34288 Kantonsschule Zug
• AS6939 Hurricane Electric LLC
• AS20473 The Constant Company, LLC
• AS9002 RETN Limited
• AS1836 green.ch AG
• AS34019 Hivane Association
• AS24482 SG.GS
• AS48362 Stadtwerke Feldkirch
• AS25091 IP-Max SA

Adjacent networks

• AS34288 Kantonsschule Zug
• AS6939 Hurricane Electric LLC
• AS20473 The Constant Company, LLC
• AS9002 RETN Limited
• AS1836 green.ch AG
• AS24482 SG.GS
• AS34019 Hivane Association
• AS48362 Stadtwerke Feldkirch
• AS25091 IP-Max SA

Internet exchanges

• SwissIX — Zurich, Switzerland