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Autonomous System

AS39633

Computer Systems Integration Group Limited

Announced IPs
1,280
CIDR prefixes
2
ASN
AS39633

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
88.211.24.0/22 1.0K
0.7%
Computer Systems Integration Group Limited GB
88.211.28.0/24 256
0.4%
Computer Systems Integration Group Limited GB

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS39633 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
88.211.27.0/24 7,634 2026-08-04 00:01:53
88.211.26.0/24 7,623 2026-08-04 00:01:53
88.211.28.0/24 7,135 2026-08-03 22:50:25
88.211.24.0/24 5,862 2026-08-04 00:01:53
88.211.25.0/24 5,861 2026-08-04 00:01:53

Frequently Asked Questions

What is AS39633?

AS39633 is an Autonomous System Number assigned to Computer Systems Integration Group 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 AS39633 announce?

AS39633 announces 1.3K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in United Kingdom.

Who operates AS39633?

AS39633 is operated by Computer Systems Integration Group Limited. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.

What country is AS39633 registered in?

AS39633 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: 2026-08-04 00:10:32 UTC
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