Autonomous system
AS5594 LHSYSHU Neumann Janos u. 1E.
Unclassified RIPE
Summary
Lufthansa Systems Hungária
enterprise legacy
LHSYSHU belongs to Lufthansa Systems Hungária Ltd., the Budapest arm of Lufthansa's airline-IT subsidiary. The RIPE descr field is literally its street address — Neumann János u. 1/E, H-1117 Budapest — which is a common quirk in older RIPE objects and not a separate organisation.
What it's used for
Corporate and development-site connectivity for an aviation IT provider. Lufthansa Systems builds and operates software for airlines (flight planning, crew and operations systems), and this AS multihomes a single /24 of that company's own space.
Notable
An enterprise end-site network, not a provider. At 256 addresses it is one of the smallest autonomous systems in the low-numbered RIPE range — the AS exists for redundancy and address independence, not scale.
Interesting
The handle is a compact clue worth decoding: LHSYS for Lufthansa Systems, HU for the Hungarian entity. Names like this are why registry handles are the first thing to expand when identifying an AS.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS12301 | One Hungary Ltd. | 59 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| HU | Hungary | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS5594- Registry name
- LHSYSHU
- Registrant
- AS5594-MNT
- Abuse contact
- lsyh.servicedesk@lhsystems.com
- Registered
- 2007-04-18
- Last changed
- 2026-10-01
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS5594
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS5594
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: 442 networks and 1,781 prefixes, as published 2026-10-16. 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