Autonomous system
AS204028 DOLPHINIT
Unclassified RIPE
Summary
Dolphin IT-Systeme
hosting business cloud it-services
DOLPHINIT is operated by Dolphin IT-Systeme e.K.
What it's used for
- The address space carries client infrastructure, with reverse DNS entries consistently pointing to
clients.srvfarm.netacross both announced IPv4 blocks. - The AS announces 1280 IPv4 addresses and 28 IPv6 prefixes, maintaining 9 observed neighbours; this ratio indicates a hosting or service provider role rather than a large-scale access network.
- Traffic from this AS consists of enterprise IT, cloud, and telecommunications services, including servers, virtualization, and digital communication solutions provided to business clients.
Notable
- Registrants for both the 185.118.196.0/22 and 213.170.142.0/24 prefixes are listed as Dolphin IT-Systeme e.K., matching the AS holder.
- The inventory includes a mix of smaller IPv4 blocks and a large, contiguous range of IPv6 prefixes, reflecting a modernized infrastructure setup.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| KleyReX Internet Exchange | Frankfurt, Germany | 193.189.83.249 |
| United Peering | Wuppertal, Germany | 185.1.54.2 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 1.28K addresses IPv6 28 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 30 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS204028- Registry name
- DolphinIT
- Registrant
- DOLPHINIT-MNT
- Abuse contact
- abuse@dolphin-it.de
- Registered
- 2015-09-10
- Last changed
- 2026-02-12
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Dolphin IT-Systeme
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Present at
- 1 exchanges
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 13 valid, 0 with no ROA
- ROAs
- 7 authorising AS204028
- ASPA
- no ASPA record
- IRR
- 100% registered · 13 of 13 announcements
- Route objects
- 7 naming AS204028
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: 447 networks and 1,843 prefixes, as published 2026-11-01. 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