Autonomous system
AS13303 UNNI-AS University of Nis
Unclassified RIPE Educational/Research
Summary
University of Nis
education research
A whole /16 held by one university, with no party named on the registration at all.
What it's used for
- The network of a Serbian university. 65,536 addresses in the single prefix
160.99.0.0/16, one observed BGP neighbour, and no IPv6 announced.
Notable
- The netname is
UNINET-NIS. - The registry lookup for the block succeeded and named nobody as registrant, which is different from a failed lookup.
- First observed in the routing archive in December 2002.
Interesting
- Universities collected class B allocations in the era when address space was handed out by institution rather than by headcount, and a single /16 for one campus is the result. It has never been split, so the whole thing travels as one route.
- A record that names no organisation is unusual and hard to act on. The block resolves to a netname and a country and stops there, which means anyone tracing traffic from it has to work out who to contact from the netname alone.
- No IPv6 on a network with sixty-five thousand addresses is a choice that costs nothing until it does. There is enough room here that the pressure other networks feel has never arrived.
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 |
|---|---|---|
| Serbian Open Exchange | Belgrade, Serbia | 185.1.27.52 |
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS13092 | AMRES | 189 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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 · 65.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| RS | Serbia | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS13303- Registry name
- UNNI-AS
- Registrant
- University of Nis
- Abuse contact
- uniuni@ni.ac.rs
- Registered
- 2002-10-23
- Last changed
- 2017-11-15
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- University of Nis
- Also known as
- Univerzitet u Nišu
- Network type
- Educational/Research
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- Present at
- 1 exchanges
- Website
- https://www.ni.ac.rs
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
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS13303
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 3 naming AS13303
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: 447 networks and 1,843 prefixes, as published 2026-11-01. 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