Autonomous system
AS15943 WTNET-AS wilhelm.tel GmbH
Unclassified RIPE
Summary
wilhelm.tel
isp telecom transit
The reverse names spell out the access technology, the equipment vendor, and the words "ipv4" in every single one.
What it's used for
- A municipal provider's network. Sixty-six IPv4 prefixes and four IPv6 prefixes announced from Germany, three hundred and fifty-four thousand three hundred and four addresses, across three hundred and twenty-nine observed BGP neighbours.
Notable
- Fifteen of eighteen queried addresses answered. Most are the full address forward-dotted, then a label giving the access technology, then a label naming the protocol version, then the brand's domain.
- Two blocks distinguish themselves further: one label marks addresses as changeable and another marks them as fixed, on the same equipment and the same point of presence, which is named after its vendor.
- One answer instead names a router interface, a customer premises device and a port number before the hyphenated address.
- Every netname is a country code, one town's name, and a date. Those dates start in the late nineteen-eighties and run for over two decades, all under the same town.
- Three hundred and twenty-nine neighbours is among the highest counts in this range.
Interesting
- Writing the protocol version into every reverse name is planning for a second zone that names the other one. Most networks never built it; this one left the space for it in the name.
- A town-named netname repeated across two decades is a company that never expanded its identity, only its address space.
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 9 exchanges in 3 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.193.125 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.211.221 |
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.118.187 |
| Speed Internet Exchange | Dronten, Netherlands | 185.1.222.30 |
| Peering.cz | Prague, Czech Republic | 185.0.20.209 |
| DE-CIX Hamburg | Hamburg, Germany | 185.1.210.37 |
| Berlin Commercial Internet Exchange | Berlin, Germany | 193.178.185.183 |
| Megaport Frankfurt IX | Frankfurt, Germany | 62.69.146.28 |
Transit providers
35 upstream, 20 downstream and 83 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 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 66 prefixes · 354K addresses IPv6 5 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 71 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15943- Registry name
- WTNET-AS
- Registrant
- NORDERSTEDT-MNT
- Abuse contact
- abuse@wilhelm-tel.de
- Registered
- 2002-07-22
- Last changed
- 2026-05-19
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 96% valid · 64 valid, 3 with no ROA
- ROAs
- 66 authorising AS15943
- ASPA
- no ASPA record
- IRR
- 100% registered · 67 of 67 announcements
- Route objects
- 70 naming AS15943
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 1,775 prefixes, as published 2026-10-11. 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