AS39889 — DT-AS

Network type: hosting

AS39889 announces 6 IPv4 prefixes covering 2,816 addresses and 1 IPv6 prefixes.

About this network

DT-AS is operated by DCS Networks.

What it's used for

• The address space carries a mix of corporate and service-oriented netnames, including FIBERONE-SE (FiberOne AB), ORG-AIA67-RIPE (Knoppus IT AB), SE-DCSNet-Services-NETWORK (SITAB Infrastruktur), and SE-FPS-NET (Fri programvaru-syndikatet Gbg).
• With 3072 IPv4 addresses announced across 4 prefixes and 37 observed neighbours, the high neighbour-to-address ratio indicates a transit or network services role rather than a large-scale access network.
• As a regional network services provider, the traffic consists of inter-AS transit, peering, and connectivity for the various business entities holding the registered prefixes.

Notable

• Registrants vary across the announced prefixes, listing FiberOne AB, Knoppus IT AB, SITAB Infrastruktur, and Fri programvaru-syndikatet Gbg, while the AS holder is Fredrik Holmqvist.
• The inventory includes a single IPv6 prefix, 2a00:1c20::/32, alongside the IPv4 blocks.
• The reverse DNS sample for the SITAB Infrastruktur block points to ip.dcs.net, aligning with the operator's domain.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 193.104.214.0/24
• 193.234.15.0/24
• 193.234.32.0/22
• 193.234.36.0/23
• 193.234.39.0/24
• 195.189.182.0/23
• 2a00:1c20::/32

Upstream networks

• AS50989 SITAB Infrastruktur
• AS3399 Obenet AB
• AS6939 Hurricane Electric LLC
• AS20766 Association "Gitoyen"
• AS56655 Gigahost AS
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS12779 IT.Gate S.p.A.
• AS50304 Blix Solutions AS
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS49559 A-Systems Sp. z o.o.
• AS48185 team.blue NV
• AS20485 Joint Stock Company TransTeleCom
• AS37100 SEACOM Limited
• AS3303 Swisscom (Schweiz) AG
• AS57463 NetIX Communications JSC
• AS37721 Virtual Technologies & Solutions
• AS50673 Serverius Holding B.V.
• AS48362 Stadtwerke Feldkirch
• AS12552 GlobalConnect AB

Downstream networks

• AS30893 No ACK Group Holding AB
• AS30880 SpaceDump IT AB
• AS33837 Fredrik Holmqvist
• AS205966 Clearminds AB
• AS208686 Nordic Servers AS
• AS48116 Fredrik Holmqvist
• AS50683 Fredrik Holmqvist

Adjacent networks

• AS3399 Obenet AB
• AS30893 No ACK Group Holding AB
• AS30880 SpaceDump IT AB
• AS50989 SITAB Infrastruktur
• AS6939 Hurricane Electric LLC
• AS33837 Fredrik Holmqvist
• AS205966 Clearminds AB
• AS48116 Fredrik Holmqvist
• AS208686 Nordic Servers AS
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50300 CustodianDC Limited
• AS50673 Serverius Holding B.V.
• AS48185 team.blue NV
• AS48362 Stadtwerke Feldkirch
• AS12779 IT.Gate S.p.A.
• AS49559 A-Systems Sp. z o.o.
• AS50683 Fredrik Holmqvist
• AS20766 Association "Gitoyen"
• AS57463 NetIX Communications JSC
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS29632 Netassist International EOOD
• AS37721 Virtual Technologies & Solutions
• AS20485 Joint Stock Company TransTeleCom
• AS56655 Gigahost AS

Internet exchanges

• AMS-IX Amsterdam — Amsterdam, Netherlands
• Sweden Open Network Internet eXchange Stockholm — Stockholm, Sweden
• STHIX - Stockholm — Stockholm, Sweden
• Stockholm Internet Exchange — Stockholm, Sweden
• Netnod Stockholm — Stockholm, Sweden
• Netnod Sundsvall- Gävle — Sundsvall, Sweden