All ASNs

Autonomous System details for AS39889

AS39889
Fredrik Holmqvist • dcs.net

AS39889 — Fredrik Holmqvist

AS Name
DCS-Networks-AS
Country
Sweden (SE)
Website
Number of IPv4
3,072
Number of IPv6
7.92 × 1028
ASN type
Hosting
Status
Allocated
Registry
RIPE
Allocated
May 10, 2006
Last updated
April 18, 2026

IP Ranges

4 IPv4 prefixes, 1 IPv6 prefixes
Prefix Company Number of IPs
193.104.214.0/24 SITAB Infrastruktur 256
193.234.15.0/24 Fri programvaru-syndikatet Gbg 256
193.234.32.0/21 FiberOne AB 2,048
195.189.182.0/23 Knoppus IT AB 512
2a00:1c20::/32 Fredrik Holmqvist 7.92 × 1028

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS39889

6 peers

AS39889 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS39889

3 upstreams

AS39889 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS39889 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS39889

6 downstreams

AS39889 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.

Our IP address tools

Explore all tools

What is my IP?

Discover your public IP address and detailed information about your connection.

CIDR to IP Range Converter (IPv4 and IPv6)

Convert CIDR notation to IP address ranges and vice versa. Useful for network configuration and security.

IP to Hostname/rDNS Lookup

Perform a reverse DNS (rDNS) lookup to get the hostname for an IP address.

IPv6 Expander/Collapser

Expand or collapse IPv6 addresses to their full or shortened forms for better readability and usage.