Autonomous system
AS15366 DNSNET German Internet Service Providers
Unclassified RIPE
Summary
DNS:NET Internet Service
isp telecom infrastructure
A company name with a colon in it, and five blocks named after a company that no longer holds them.
What it's used for
- A regional internet provider. Six IPv4 prefixes and one IPv6
/29announced from Germany, thirty thousand addresses, across one hundred and thirteen observed BGP neighbours.
Notable
- The holder's name contains a colon, punctuation that is legal in a company name and awkward everywhere else, and the two halves of it are both protocol words.
- Five netnames share a prefix naming a different company, each followed by the date the block was allocated: one written as six digits and four as eight.
- The sixth netname is the company's own name plus the word dialin, a product that predates broadband.
- Eighteen addresses were queried for reverse DNS and none returned a name.
- One hundred and thirteen neighbours is a peering count, not a transit count.
Interesting
- That neighbour count against thirty thousand addresses is the shape of a provider that peers widely at exchanges rather than buying transit from a few carriers. It is how regional providers in this market keep costs down.
- Dates baked into netnames are unintended documentation. They record when each block was handed out, and the two formats show the convention changed partway through.
- A provider serving broadband subscribers usually names its customer addresses in reverse. None of the sampled addresses answered at all, which is unusual at this size.
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 5 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.194.30 |
| DE-CIX Dusseldorf | Düsseldorf, Germany | 185.1.170.194 |
| DE-CIX Munich | Munich, Germany | 185.1.208.169 |
| DE-CIX Hamburg | Hamburg, Germany | 185.1.210.175 |
| Berlin Commercial Internet Exchange | Berlin, Germany | 193.178.185.16 |
Transit providers
23 upstream, 1 downstream and 39 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 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6 prefixes · 30.72K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 7 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15366- Registry name
- DNSNET
- Registrant
- DNSNET-MNT
- Abuse contact
- abuse@dns-net.de
- Registered
- 2002-08-29
- Last changed
- 2017-11-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 7 with no ROA
- ROAs
- 0 authorising AS15366
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 19 naming AS15366
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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