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Autonomous System

AS203909

Christian Svensson

Announced IPs
256
CIDR prefixes
1
ASN
AS203909

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Educational/Research
Traffic level 1-5Gbps
Geographic scope Europe
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-MAINFRAME

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
193.228.143.0/24 256
84.4%
Christian Svensson SE

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS203909 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
193.228.143.0/24 10,614 2026-07-28 09:30:59

Frequently Asked Questions

What is AS203909?

AS203909 is an Autonomous System Number assigned to Christian Svensson. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS203909 announce?

AS203909 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Sweden.

Who operates AS203909?

AS203909 is operated by Christian Svensson. The organization is based in Sweden. You can view all IP ranges and related ASNs on the organization page.

What country is AS203909 registered in?

AS203909 is registered in Sweden. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-28 10:55:32 UTC
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