Autonomous system
AS8823 AUTONOMOUSSYSTEMROCKENSTEINAG
Unclassified RIPE
Summary
rockenstein AG
hosting enterprise legacy
AutonomousSystemRockensteinAG is rockenstein AG, a Würzburg-area Internet service provider and data-centre operator. It sells connectivity, colocation, managed servers, IP telephony and IT security to business customers, and traces its lineage back to a 1987 bulletin-board system.
What it's used for
Business connectivity and hosting. The sampled reverse DNS is a mix of the provider's own infrastructure and named customer systems: mail2.rox.net (rockenstein's own long-standing domain, also home to its ns1/ns2 nameservers), install.wesroc.de, fleet.cargorent.eu — a vehicle-fleet application — and dsl-net-hk.hk.mailbox.de. Named corporate hostnames on provider-announced space, with no dyn-, pppoe- or pool- subscriber naming anywhere in the sample. That is a B2B ISP and hosting network, not an eyeball network.
Notable
- About 48k IPv4 addresses across 14 prefixes plus 5 IPv6 prefixes. The inventory is scattered (
77.76.192.0/18,212.63.64.0/19,213.214.0.0/19,213.137.192.0/19, plus several /22s and /24s) but the blocks are ordinary German RIPE allocations carrying the operator's own and its customers' names — the untidiness of a thirty-year-old ISP, not of leased address space. - 115 observed BGP neighbours — substantial peering for a regional provider, consistent with an operator that runs its own data centres and transit.
Interesting
The company began as the Happy-Rocky-Box, one of Germany's first dial-up mailboxes, started in the Upper Palatinate in 1987 and moved to Würzburg in 1990 when its founder went to study computer science there.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.194.238 |
Transit providers
22 upstream, 4 downstream and 38 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 14 prefixes · 45.82K addresses IPv6 5 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 19 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS8823- Registry name
- AutonomousSystemRockensteinAG
- Registrant
- Rockenstein AG
- Abuse contact
- abuse@rockenstein.de
- Registered
- 2002-04-02
- Last changed
- 2016-04-14
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 74% valid · 14 valid, 5 with no ROA
- ROAs
- 14 authorising AS8823
- ASPA
- no ASPA record
- IRR
- 100% registered · 19 of 19 announcements
- Route objects
- 22 naming AS8823
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,783 prefixes, as published 2026-10-17. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere