Autonomous system
AS13065 ZIELMAN-COM-AS
Unclassified RIPE
Summary
ZielMAN
education research infrastructure
An IPv6 announcement of exactly half a standard allocation, from a university metropolitan network.
What it's used for
- The metropolitan area network of a Polish university. 7,168 addresses across three IPv4 prefixes, one IPv6 prefix, and seven observed BGP neighbours.
Notable
- The IPv6 announcement is
2a00:6c40:8000::/33. - Netnames are
PL-ZIELMAN-981222,PL-ZIELMAN-20091118andPL-ZIELMAN-20121107. - One of nine sampled addresses returned a name:
r5-254.netdrive.pl, under a domain unrelated to the university. - Every block lists the university and a separate abuse contact named for the network, not the institution.
Interesting
- A
/33is half a/32, the size regional registries hand out as a standard allocation. Splitting it and announcing one half is unusual: most holders announce the whole thing and subdivide internally, because there is no shortage to manage. The other half is being kept back or routed somewhere else entirely. - The one address that answered belongs to a commercial domain. University metropolitan networks were built to connect campuses and then sold spare capacity to whoever else was in the city, so the address space carries organisations with no academic connection at all.
- The abuse contact is named for the network rather than the university that owns it, which is how a shared regional network keeps its own operational identity.
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, 4 downstream and 9 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS196844 | Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | 113 |
| AS13293 | Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | 91 |
| AS35628 | Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | 3 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 7.17K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PL | Poland | 4 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS13065- Registry name
- ZIELMAN-COM-AS
- Registrant
- Uniwersytet Zielonogorski
- Abuse contact
- abuse@zielman.pl
- Registered
- 2002-04-18
- Last changed
- 2020-07-24
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 4 authorising AS13065
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 4 naming AS13065
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 1,783 prefixes, as published 2026-10-17. 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