AS8520 — DUNKEL

Network type: hosting

AS8520 announces 4 IPv4 prefixes covering 10,240 addresses and 1 IPv6 prefixes.

About this network

DUNKEL is the network of Dunkel GmbH, a managed hosting, cloud and IT security provider based in Hattersheim near Frankfurt, close to the DE-CIX exchange. The AS is now registered to SITS Deutschland GmbH — Dunkel joined the Swiss IT Security Group, and the handle outlived the standalone company name.

What it's used for

• Managed cloud, hosting, storage and disaster-recovery services for German business customers, run out of Rhine-Main data centres.
• Managed email security: part of the space carries mail relays under sec-provider.de, the front end of a secure-mail service.
• About 10,000 addresses across four prefixes (88.215.192.0/19 is the bulk) plus an IPv6 /33.

Notable

• Every prefix is registered directly to the holder (DUNKEL-NET- netnames), so the scattered-looking inventory is a real operator's own space, not brokered address blocks.
• Reverse DNS is sparse — most of the range answers nothing, and the names that do exist are first-party service hosts. That fits a managed-hosting estate where customer VMs sit behind the provider's own naming, and rules out any residential or eyeball use.

Interesting

• The proximity to DE-CIX is the whole pitch: a mid-sized German hoster selling data-residency and ISO-27001 compliance to customers who want their data to stay in Germany.

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

Announced prefixes

• 62.93.212.0/23
• 62.93.246.0/23
• 88.215.192.0/19
• 185.126.212.0/22
• 2001:14c0::/33

Upstream networks

• AS13237 euNetworks GmbH

Adjacent networks

• AS13237 euNetworks GmbH