Autonomous system
AS15798 OLMAN-EDU-AS OLMAN, Metropolitan Area Network educational AS
Unclassified RIPE
Summary
University of Warmia and Mazury
education research isp
The reverse names give a building letter and a room number before they give the address.
What it's used for
- A university and its city network. Nine IPv4 prefixes and one IPv6
/32announced from Poland, thirteen thousand and fifty-six addresses, across four observed BGP neighbours.
Notable
- Two answering names are the university's initials, a letter, a three-digit number and the last octet, so a lookup identifies a building and a room before it identifies the machine.
- A third is a short name for an outward-facing router, which is the only host in the sample not described by where it physically sits.
- Six netnames are a country code, the network's name and a date, with one date written in six digits and the others in eight.
- Two more are the university's initials and a digit, and those digits are four and seven, with the numbers between them absent from the record.
- One block's netname is just the network's name, with nothing else.
- Of eighteen addresses queried, three returned a name.
Interesting
- Campus networks were built before addresses were scarce, so the naming grew out of the estates department rather than the routing plan. A letter and a room number is how the people who pull the cables think about a machine.
- A metropolitan academic network is a university acting as an internet provider for a whole city's institutions, which is why a single university holds thirteen thousand addresses across nine routes.
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
4 upstream, 1 downstream and 6 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS8501 | Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | 452 |
| AS196844 | Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | 72 |
| AS21064 | University of Warmia and Mazury in Olsztyn, Poland | 60 |
| AS5617 | Orange Polska Spolka Akcyjna | 9 |
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 9 prefixes · 13.06K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| PL | Poland | 10 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15798- Registry name
- OLMAN-EDU-AS
- Registrant
- OLMAN-MNT
- Abuse contact
- abuse@man.olsztyn.pl
- Registered
- 1970-01-01
- Last changed
- 2017-11-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 10 with no ROA
- ROAs
- 0 authorising AS15798
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 10 naming AS15798
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 1,782 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