AS39563 — UCSYSTEMS

AS39563 announces 3 IPv4 prefixes covering 2,304 addresses and 1 IPv6 prefixes.

About this network

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.net and te1-4.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.

Announced prefixes

• 85.8.131.0/24
• 185.80.8.0/22
• 185.231.16.0/22
• 2a0c:3900::/32

Upstream networks

• AS35133 Eranium B.V.
• AS20562 Broadband Hosting B.V.
• AS24785 Broadband Hosting B.V.
• AS6939 Hurricane Electric LLC
• AS43350 NForce Entertainment B.V.
• AS50304 Blix Solutions AS
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS24482 SG.GS
• AS48185 team.blue NV
• AS401753 BIXCE Inc
• AS204092 Association GRIFON
• AS34927 iFog GmbH
• AS20485 Joint Stock Company TransTeleCom
• AS37100 SEACOM Limited
• AS57463 NetIX Communications JSC
• AS37721 Virtual Technologies & Solutions
• AS202365 Omer GOLGELI
• AS6696 VERIXI SA
• AS28685 Routit BV
• AS29632 Netassist International EOOD
• AS50673 Serverius Holding B.V.
• AS56662 Marcin Gondek

Downstream networks

• AS35055 Connect B.V.

Adjacent networks

• AS35133 Eranium B.V.
• AS20562 Broadband Hosting B.V.
• AS24785 Broadband Hosting B.V.
• AS6939 Hurricane Electric LLC
• AS43350 NForce Entertainment B.V.
• AS35055 Connect B.V.
• AS50304 Blix Solutions AS
• AS401753 BIXCE Inc
• AS48185 team.blue NV
• AS204092 Association GRIFON
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS24482 SG.GS
• AS37100 SEACOM Limited
• AS34927 iFog GmbH
• AS6696 VERIXI SA
• AS57463 NetIX Communications JSC
• AS37721 Virtual Technologies & Solutions
• AS202365 Omer GOLGELI
• AS20485 Joint Stock Company TransTeleCom
• AS28685 Routit BV
• AS29632 Netassist International EOOD
• AS50673 Serverius Holding B.V.
• AS56662 Marcin Gondek

Internet exchanges

• Neutral Internet Exchange — Amsterdam, Netherlands
• Speed Internet Exchange — Dronten, Netherlands
• ERA-IX Amsterdam — Amsterdam, Netherlands
• Nine IX — Paris, France
• EuroGIX — Strasbourg, France
• LayerSwitch Internet Exchange — The Hague, Netherlands
• ERA-IX Frankfurt — Frankfurt, Germany