asn.dev

Autonomous system

AS51708 UNIBZ-AS

Unclassified RIPE

IPv4 addresses 2.05K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly IT
Exchanges 1 recorded by PCH
Upstreams 6 1 downstream
Flagged prefixes 0 none

Summary

Free University of Bozen-Bolzano

Italy · AI-generated

education university research

UNIBZ-AS is operated by Libera Università di Bolzano (Free University of Bozen-Bolzano).

What it's used for

  • The address space is registered to the university, with netname IT-UNIBZ-20101025 and registrants including UNIBZ Network Administrator and UNIBZ Abuse Handling.
  • The AS announces 2048 IPv4 addresses in a single /21 prefix and one IPv6 /32 prefix, while maintaining 22 observed neighbours.
  • Traffic from this network consists of institutional data for a trilingual public university, supporting research, administration, and student services.

Notable

  • The RDAP registrant Libera Universita di Bolzano aligns directly with the AS holder and the announced prefixes.
  • The address inventory is compact and internally managed, consisting of one IPv4 block and one IPv6 block without external subdivision.

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

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Milan Internet ExchangeMilan, Italy217.29.66.208

Transit providers

6 upstream, 1 downstream and 9 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS49088TELMEKOM SRL128
AS6939Hurricane Electric LLC86
AS1299Arelion Sweden AB73
AS24482SG.GS6
AS29632Netassist International EOOD4
AS59919Brainbox S.r.l.3

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 2.05K addresses IPv6 1 prefixes

CountryNamePrefixes
ITItaly2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51708
Registry name
UNIBZ-AS
Registrant
Libera Universita di Bolzano
Abuse contact
abuse@unibz.it
Registered
2010-10-25
Last changed
2026-03-20
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
6 authorising AS51708
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
4 naming AS51708

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 1,771 prefixes, as published 2026-10-15. 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

Cross-check