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Autonomous System

AS205544

Leaseweb UK Limited

Announced IPs
45,056
CIDR prefixes
36
ASN
AS205544

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.

47/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 4 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS205544 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

Network profile

Source: PeeringDB →
Network type Content
Geographic scope Not Disclosed
Traffic ratio Heavy Outbound
Peering policy Selective
IRR record AS205544

Web3 footprint

AS205544 hosts 2 observed decentralized-network nodes across 1 network. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
82.113.64.0/19 8.2K
0.0%
Leaseweb UK Limited GB
95.168.176.0/20 4.1K
16.6%
Leaseweb UK Limited GB England Canary Wharf
23.19.56.0/21 2.0K
7.7%
Leaseweb UK Limited GB
23.81.32.0/21 2.0K
16.4%
Leaseweb UK Limited GB
23.106.32.0/21 2.0K
11.7%
Leaseweb UK Limited GB England London
23.106.56.0/21 2.0K
8.6%
Leaseweb UK Limited GB England London
23.106.232.0/21 2.0K
9.7%
Leaseweb UK Limited GB England London
81.17.56.0/21 2.0K
8.9%
Leaseweb UK Limited GB England London
173.208.48.0/21 2.0K
9.5%
Leaseweb UK Limited GB England Slough
173.234.16.0/21 2.0K
38.0%
Leaseweb UK Limited GB England London
173.234.72.0/21 2.0K
7.3%
Leaseweb UK Limited GB England London
173.234.136.0/21 2.0K
20.1%
Leaseweb UK Limited GB England Slough
37.44.216.0/22 1.0K
0.0%
Leaseweb UK Limited US
92.249.32.0/22 1.0K
0.0%
Leaseweb UK Limited US
176.113.64.0/22 1.0K
0.0%
Leaseweb UK Limited AE
185.222.24.0/22 1.0K
2.2%
Leaseweb UK Limited GB
185.236.92.0/22 1.0K
0.0%
Leaseweb UK Limited US
185.245.124.0/22 1.0K
33.6%
Leaseweb UK Limited GB
193.160.76.0/22 1.0K
0.0%
Leaseweb UK Limited US
31.59.20.0/23 512
0.0%
Leaseweb UK Limited AE
38.246.186.0/23 512
0.0%
Leaseweb UK Limited US
38.253.124.0/23 512
0.0%
Leaseweb UK Limited US
31.58.18.0/24 256
0.0%
Leaseweb UK Limited AE
31.58.22.0/24 256
0.0%
Leaseweb UK Limited AE
31.58.28.0/24 256
0.0%
Leaseweb UK Limited AE
31.58.32.0/24 256
0.0%
Leaseweb UK Limited AE
31.59.15.0/24 256
0.0%
Leaseweb UK Limited AE
31.59.27.0/24 256
0.0%
Leaseweb UK Limited AE
31.59.28.0/24 256
0.0%
Leaseweb UK Limited AE
31.59.33.0/24 256
0.0%
Leaseweb UK Limited AE
45.153.20.0/24 256
0.0%
Leaseweb UK Limited SC
82.38.198.0/24 256
0.0%
Leaseweb UK Limited GB
82.41.197.0/24 256
0.0%
Leaseweb UK Limited GB
103.173.197.0/24 256
2.7%
Leaseweb UK Limited IN
194.56.232.0/24 256
0.4%
Leaseweb UK Limited US
212.135.128.0/24 256
0.4%
Leaseweb UK Limited GB England Slough

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS205544 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
95.168.184.0/24 9,262 2026-07-18 10:52:01
45.153.20.0/24 9,188 2026-07-18 10:52:01
103.173.197.0/24 9,178 2026-07-18 10:52:01
185.236.92.0/22 9,173 2026-07-18 10:52:27
176.113.64.0/22 9,142 2026-07-18 10:52:27
95.168.187.0/24 9,141 2026-07-18 10:52:01
81.17.56.0/22 9,131 2026-07-18 10:52:01
81.17.60.0/24 9,101 2026-07-18 10:52:01
81.17.56.0/21 9,088 2026-07-18 10:52:01
23.106.232.0/21 9,086 2026-07-18 10:52:01
193.160.76.0/22 9,078 2026-07-18 10:52:27
82.38.198.0/24 9,057 2026-07-18 10:52:01
173.234.16.0/21 9,052 2026-07-18 10:52:27
173.234.17.0/24 9,039 2026-07-18 10:52:27
82.41.197.0/24 9,025 2026-07-18 10:52:01
173.234.18.0/24 9,019 2026-07-18 10:52:27
185.245.124.0/22 9,007 2026-07-18 10:52:27
23.19.59.0/24 9,006 2026-07-18 10:52:01
37.44.216.0/22 8,995 2026-07-18 10:52:01
212.135.128.0/24 8,978 2026-07-18 10:52:27
173.234.72.0/21 8,974 2026-07-18 10:52:27
23.19.62.0/24 8,953 2026-07-18 10:52:01
173.234.18.0/23 8,934 2026-07-18 10:52:27
23.19.56.0/24 8,933 2026-07-18 10:52:01
173.234.16.0/24 8,886 2026-07-18 10:52:27
81.17.61.0/24 8,881 2026-07-18 10:52:18
173.234.19.0/24 8,878 2026-07-18 10:52:27
81.17.62.0/24 8,847 2026-07-18 10:52:18
81.17.63.0/24 8,824 2026-07-18 10:52:18
95.168.188.0/22 8,792 2026-07-18 10:52:18
23.19.56.0/21 8,776 2026-07-18 10:52:01
95.168.176.0/21 8,768 2026-07-18 10:52:18
95.168.186.0/24 8,765 2026-07-18 10:52:18
95.168.186.0/23 8,759 2026-07-18 10:52:18
173.234.20.0/23 8,740 2026-07-18 10:52:52
95.168.176.0/20 8,734 2026-07-18 10:52:18
95.168.185.0/24 8,719 2026-07-18 10:52:18
173.234.22.0/23 8,711 2026-07-18 10:52:52
23.81.32.0/21 8,495 2026-07-18 10:52:01
23.106.56.0/21 7,960 2026-07-18 10:52:01
173.234.136.0/21 7,631 2026-07-18 10:52:27
92.249.32.0/22 7,438 2026-07-18 10:52:01
38.253.124.0/23 7,268 2026-07-18 10:52:01
23.106.32.0/21 7,217 2026-07-18 10:52:01
38.246.186.0/23 7,133 2026-07-18 10:52:01
31.59.33.0/24 6,595 2026-07-18 10:52:01
31.58.32.0/24 6,530 2026-07-18 10:52:01
82.113.64.0/19 6,506 2026-07-18 10:52:01
194.56.232.0/24 6,473 2026-07-18 10:52:27
185.222.24.0/24 6,452 2026-07-18 10:52:27

Showing top 50 of 65 announced prefixes by sample volume.

Frequently Asked Questions

What is AS205544?

AS205544 is an Autonomous System Number assigned to Leaseweb UK 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 AS205544 announce?

AS205544 announces 45.1K IPv4 addresses distributed across 36 routed CIDR prefixes. The network is registered in United Kingdom.

Who operates AS205544?

AS205544 is operated by Leaseweb UK Limited. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.

What country is AS205544 registered in?

AS205544 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: 2026-07-18 11:40:32 UTC
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