Autonomous system
AS215219 sub-net Florian Berthold trading as Sub-Net e.U.
Unclassified RIPE NSP
Summary
Sub-Net e.U.
education research regional austria
SUB-NET is operated by Florian Berthold trading as Sub-Net e.U.
What it's used for
- The address space carries a single IPv4 prefix,
193.221.125.0/24, and one IPv6 prefix,2a10:bd40::/29, with the netnameAT-SUBNET-20200826. - With 256 IPv4 addresses announced against 20 observed neighbours, the ratio indicates a transit or peering role rather than a large access network.
- PeeringDB classifies the operator as Educational/Research with a Regional scope, suggesting the traffic consists of academic or research institution connectivity.
Notable
- The RDAP registrant for the announced prefix matches the AS holder, identified as Florian Berthold trading as Sub-Net e.U.
- The address inventory is compact, consisting of one /24 block and a small IPv6 allocation, typical for a specialized research network.
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 |
|---|---|---|
| Vienna Internet Exchange | Vienna, Austria | 193.203.0.177 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-05, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AT | Austria | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS215219- Registry name
- sub-net
- Registrant
- mnt-at-subnet-1
- Abuse contact
- abuse@sub-net.at
- Registered
- 2024-03-27
- Last changed
- 2026-01-23
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Florian Berthold trading as Sub-Net e.U.
- Network type
- NSP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
RIPE::AS215219:AS-SUB-NET- Present at
- 1 exchanges
- Website
- https://sub-net.at
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 · 2 valid, 0 with no ROA
- ROAs
- 2 authorising AS215219
- ASPA
- 1 declared providers
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS215219
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: 454 networks and 1,854 prefixes, as published 2026-11-06. 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