Autonomous system
AS15817 MITTWALD-AS Mittwald CM Service GmbH und Co. KG
Hosting RIPE
Summary
Mittwald CM Service
hosting business isp
A web host whose oldest blocks carry allocation dates from before the web existed.
What it's used for
- A web hosting company's network. Twenty-five IPv4 prefixes and nineteen IPv6 prefixes announced from Germany, thirty-four thousand eight hundred and sixteen addresses, across a hundred observed BGP neighbours.
Notable
- Every netname is a country code, the company name run together without spaces, and a date. Those dates run from the early nineteen-nineties to the end of the twenty-tens.
- The three oldest predate the company's own appearance in the routing archive by twenty years, so those blocks were bought rather than allocated.
- The IPv6 announcements double at every step, running from one small prefix through eight successively shorter ones out of a single allocation.
- The registered holder is a private individual trading under a company name, and one role account serves as both hostmaster and abuse contact.
- The AS handle writes the legal form's conjunction as a word where the holder string uses an ampersand.
- Of eighteen addresses queried, one returned a name: a letter, a five-digit server number, and a domain meaning agency server under a country suffix that is not the one the network announces from.
Interesting
- Sequential server numbers in the tens of thousands are a shared hosting platform counting machines, and the count is published to anyone who asks. It is a rough census of the estate.
- Buying nineteen-nineties address space is the modern way to grow. The dates are the previous owner's.
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 |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.197.30 |
| DE-CIX Hamburg | Hamburg, Germany | 185.1.210.226 |
Transit providers
17 upstream, 0 downstream and 26 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 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 25 prefixes · 34.82K addresses IPv6 19 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 44 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15817- Registry name
- MITTWALD-AS
- Registrant
- MITTWALD-MNT
- Abuse contact
- abuse@wl.mittwald.de
- Registered
- 2011-01-17
- Last changed
- 2021-04-30
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 26 valid, 0 with no ROA
- ROAs
- 30 authorising AS15817
- ASPA
- no ASPA record
- IRR
- 100% registered · 26 of 26 announcements
- Route objects
- 27 naming AS15817
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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 1,773 prefixes, as published 2026-10-13. 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