Autonomous system
AS13092 UB-AS
Unclassified RIPE
Summary
AMRES
education research infrastructure
A netname ending in BG that means a city, not the country whose code it is.
What it's used for
- Serbia's academic and research network. 74,752 addresses across three IPv4 prefixes, one IPv6 prefix, and five observed BGP neighbours.
Notable
- The largest block is
147.91.0.0/16, netnameUNINET-BG. - The others are
RS-RCUB-20061127andRS-RCUB-20161209. - The AS handle is
UB-AS, a third abbreviation again. - Nine addresses were sampled and none returned a name.
Interesting
BGhere abbreviates the capital city, but it is also the two-letter country code for a different country entirely. Netnames carry no schema, so a suffix that looks like a country code may be a city, a building, a department or nothing. Anyone parsing these labels automatically will get this wrong, and there is no field that would tell them.- Four abbreviations for one organisation across the handle, the holder field and two netname generations: the university, the computing centre that ran the network first, and the national academic network that runs it now. The record is a chain of custody nobody ever tidied.
- A /16 alongside a modern IPv6 allocation is the usual academic pattern: early address space granted generously when networks were universities, kept ever since.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 · 74.75K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| RS | Serbia | 4 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS13092- Registry name
- UB-AS
- Registrant
- AMRES-MNT
- Abuse contact
- csirt@amres.ac.rs
- Registered
- 1970-01-01
- Last changed
- 2026-09-04
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 63% valid · 5 valid, 3 with no ROA
- ROAs
- 5 authorising AS13092
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 11 naming AS13092
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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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