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Autonomous System

AS203803

TELVIO, Ltd.

Announced IPs
256
CIDR prefixes
1
ASN
AS203803

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 →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
195.209.49.0/24 256
94.1%
TELVIO, Ltd. RU

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS203803 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
195.209.49.0/24 23,579 2026-07-24 13:54:37

Frequently Asked Questions

What is AS203803?

AS203803 is an Autonomous System Number assigned to TELVIO, Ltd.. 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 AS203803 announce?

AS203803 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Russia.

Who operates AS203803?

AS203803 is operated by TELVIO, Ltd.. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.

What country is AS203803 registered in?

AS203803 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 15:25:31 UTC
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