Autonomous system
AS51529 AARERZ
Unclassified RIPE
Summary
UPGREAT AG
business datacenter switzerland
AARERZ is operated by UPGREAT AG.
What it's used for
- The address space is registered under netnames
CH-UPGREAT1995-20220628andCH-UPGREAT1995, with registrants identified as "Manager for Datacenter; UPGREAT AG; Abuse-C Role". - The AS announces 512 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating a small, self-contained business or datacenter network rather than a transit provider.
- Traffic from this AS consists of datacenter infrastructure and corporate services hosted by UPGREAT AG.
Notable
- Registrants for both announced IPv4 prefixes align with the AS holder, UPGREAT AG.
- The inventory consists of two /24 blocks and a single /29 IPv6 prefix, representing a compact corporate estate.
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
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS15623 | Cyberlink AG | 157 |
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
IPv4 2 prefixes · 512 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CH | Switzerland | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS51529- Registry name
- UPGRZ
- Registrant
- lir-ch-upgreat1995-1-MNT
- Abuse contact
- datacenter@upgreat.ch
- Registered
- 2010-09-21
- Last changed
- 2026-08-13
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 3 valid, 0 with no ROA
- ROAs
- 3 authorising AS51529
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 3 naming AS51529
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