Autonomous system
AS39563 UCSYSTEMS
Unclassified RIPE NCC NSP
Summary
UC Systems
isp netherlands regional
The AS handle UCSYSTEMS is held by UC Systems (CTA Systems B.V.).
What it's used for
- The address space carries static IP addresses for customer premises, as indicated by reverse DNS entries such as
ip0-net9.80.185.static.ucsystems.netandte1-4.rtr1.drdt.dc.ucsystems.net. - The network announces 2304 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, with 88 observed neighbours, indicating a regional access provider role.
- Traffic from this AS consists of subscriber eyeballs and static IP services for businesses and residential customers in the Netherlands.
Notable
- All registrants for the announced prefixes are CTA Systems B.V., matching the AS holder.
- The address inventory is composed of three IPv4 blocks: 185.80.8.0/22, 185.231.16.0/22, and 85.8.131.0/24, along with one IPv6 /32 prefix.
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 9 exchanges in 3 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.116.8 |
| The Frys Internet Exchange | Frysian, Netherlands | 2001:7f8:10f::9a8b:273 |
| Speed Internet Exchange | Dronten, Netherlands | 185.1.222.232 |
| InterIX Internet Exchange | Amsterdam, Netherlands | 2001:7f8:134::6f |
| ERA-IX Amsterdam | Amsterdam, Netherlands | 185.1.240.196 |
| Nine IX | Paris, France | 185.1.14.117 |
| EuroGIX | Strasbourg, France | 185.1.14.117 |
| LayerSwitch Internet Exchange | The Hague, Netherlands | 185.1.32.78 |
Transit providers
24 upstream, 1 downstream and 38 adjacent networks observed; most-used upstreams first.
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 · 2.30K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NL | Netherlands | 4 |
Registry
Allocation record
- Registry
- RIPE NCC
- Registered
- 2017-11-10
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- UC Systems
- Also known as
- CTA Systems B.V.
- Network type
- NSP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS-UCSYSTEMS- Present at
- 13 exchanges
- Facilities
- 7 facilities
- Website
- https://ucsystems.nl
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
- 100% valid · 10 valid, 0 with no ROA
- ROAs
- 8 authorising AS39563
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 17 naming AS39563
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