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Autonomous System

AS203652

IBM United Kingdom Limited

Announced IPs
512
CIDR prefixes
2
ASN
AS203652

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.

59/100
Caution
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
194.61.247.0/24 256
0.0%
IBM United Kingdom Limited GB
194.61.248.0/24 256
0.0%
IBM United Kingdom Limited GB

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS203652 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
194.61.248.0/24 12,206 2026-08-03 12:12:44
194.61.247.0/24 12,191 2026-08-03 12:12:44

Frequently Asked Questions

What is AS203652?

AS203652 is an Autonomous System Number assigned to IBM United Kingdom Limited. 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 AS203652 announce?

AS203652 announces 512 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in United Kingdom.

Who operates AS203652?

AS203652 is operated by IBM United Kingdom Limited. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.

What country is AS203652 registered in?

AS203652 is registered in United Kingdom. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-08-03 12:25:31 UTC
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