Autonomous system
AS9103 ZIELMAN-EDU-AS Metropolitan Network ZielMAN
Education ARIN
Summary
University of Zielona Góra
education university research legacy
ZIELMAN-EDU-AS (AS9103) belongs to the University of Zielona Góra (Uniwersytet Zielonogorski) in western Poland. ZielMAN is the university's metropolitan academic network.
What it's used for
The AS announces a single IPv4 /20 (212.109.128.0/20, ~4k addresses) plus one IPv6 prefix, with only a few observed neighbours: the compact footprint of a single campus/metropolitan academic network connected upstream to Poland's national research network (PIONIER). It carries university teaching, research and administrative traffic rather than commercial or subscriber traffic.
Notable
- Announced from this AS since at least 2000, consistent with an early Polish academic allocation.
- No PTRs were returned on the addresses sampled.
Interesting
The -EDU-AS and ZIELMAN (Zielona Góra Metropolitan Area Network) handle both point to the same academic operator; there is no famous-name collision here.
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
3 upstream, 0 downstream and 4 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 2026-10-15, 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 · 4.10K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PL | Poland | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS9103- Registry name
- ZIELMAN-EDU-AS
- Registrant
- Uniwersytet Zielonogorski
- Abuse contact
- abuse@zielman.pl
- Registered
- 2002-04-18
- Last changed
- 2019-02-08
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 2 authorising AS9103
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS9103
Reputation
Classification and threat
Education University, school or national research and education network.
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 1,782 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