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Autonomous System

AS205544

Leaseweb UK Limited

Announced IPs
46,592
CIDR prefixes
38
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.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 3 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 7 observed decentralized-network nodes across 3 networks. 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
17.0%
Leaseweb UK Limited GB England Canary Wharf
23.19.56.0/21 2.0K
8.0%
Leaseweb UK Limited GB — —
23.81.32.0/21 2.0K
16.0%
Leaseweb UK Limited GB — —
23.106.32.0/21 2.0K
11.3%
Leaseweb UK Limited GB England London
23.106.56.0/21 2.0K
6.5%
Leaseweb UK Limited GB England London
23.106.232.0/21 2.0K
9.3%
Leaseweb UK Limited GB England London
81.17.56.0/21 2.0K
9.1%
Leaseweb UK Limited GB England London
173.208.48.0/21 2.0K
11.1%
Leaseweb UK Limited GB England Slough
173.234.16.0/21 2.0K
36.3%
Leaseweb UK Limited GB England London
173.234.72.0/21 2.0K
8.2%
Leaseweb UK Limited GB England London
173.234.136.0/21 2.0K
18.8%
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 — —
185.70.240.0/22 1.0K
1.6%
Leaseweb UK Limited GB — —
185.222.24.0/22 1.0K
1.9%
Leaseweb UK Limited GB — —
185.236.92.0/22 1.0K
0.0%
Leaseweb UK Limited US — —
185.245.124.0/22 1.0K
33.3%
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 — —
38.246.204.0/23 512
48.8%
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
18.4%
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 GB — —
194.56.232.0/24 256
0.4%
Leaseweb UK Limited US — —
212.24.127.0/24 256
0.0%
Leaseweb UK Limited LT — —
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
45.153.20.0/24 21,187 2026-10-27 10:42:52
95.168.184.0/24 21,038 2026-10-27 10:42:52
185.236.92.0/22 20,928 2026-10-27 10:42:52
23.106.232.0/21 20,839 2026-10-27 10:42:51
176.113.64.0/22 20,777 2026-10-27 10:42:52
81.17.56.0/22 20,756 2026-10-27 10:42:52
81.17.60.0/24 20,708 2026-10-27 10:42:52
81.17.56.0/21 20,707 2026-10-27 10:42:52
95.168.187.0/24 20,636 2026-10-27 10:42:52
37.44.216.0/22 20,616 2026-10-27 10:42:51
23.19.62.0/24 20,579 2026-10-27 10:42:51
82.38.198.0/24 20,561 2026-10-27 10:42:52
23.19.59.0/24 20,558 2026-10-27 10:42:51
193.160.76.0/22 20,501 2026-10-27 10:42:52
23.19.56.0/24 20,477 2026-10-27 10:42:51
173.234.16.0/21 20,430 2026-10-27 10:42:52
82.41.197.0/24 20,409 2026-10-27 10:42:52
173.234.72.0/21 20,404 2026-10-27 10:42:52
173.234.18.0/24 20,382 2026-10-27 10:42:52
185.245.124.0/22 20,376 2026-10-27 10:42:52
173.234.17.0/24 20,374 2026-10-27 10:42:52
81.17.61.0/24 20,371 2026-10-27 10:42:52
173.234.18.0/23 20,323 2026-10-27 10:42:52
212.135.128.0/24 20,319 2026-10-27 10:42:52
81.17.62.0/24 20,254 2026-10-27 10:42:52
81.17.63.0/24 20,203 2026-10-27 10:42:52
23.19.56.0/21 20,193 2026-10-27 10:42:51
38.253.124.0/23 20,141 2026-10-27 10:42:51
23.81.32.0/21 20,116 2026-10-27 10:42:51
38.246.186.0/23 20,082 2026-10-27 10:42:51
95.168.176.0/21 20,066 2026-10-27 10:42:52
95.168.176.0/20 19,995 2026-10-27 10:42:52
95.168.188.0/22 19,983 2026-10-27 10:42:52
95.168.186.0/23 19,961 2026-10-27 10:42:52
95.168.186.0/24 19,948 2026-10-27 10:42:52
95.168.185.0/24 19,921 2026-10-27 10:42:52
173.234.16.0/24 19,915 2026-10-27 10:42:52
173.234.19.0/24 19,915 2026-10-27 10:42:52
173.234.20.0/23 19,634 2026-10-27 10:42:52
173.234.22.0/23 19,616 2026-10-27 10:42:52
23.106.56.0/21 19,586 2026-10-27 10:42:51
173.234.136.0/21 19,121 2026-10-27 10:42:52
92.249.32.0/22 18,900 2026-10-27 10:42:52
23.106.32.0/21 18,763 2026-10-27 10:42:51
31.58.32.0/24 18,291 2026-10-27 10:42:51
31.59.33.0/24 18,211 2026-10-27 10:42:51
31.59.15.0/24 18,085 2026-10-27 10:42:51
31.58.22.0/24 18,070 2026-10-27 10:42:51
82.113.64.0/19 18,035 2026-10-27 10:42:52
31.59.27.0/24 17,985 2026-10-27 10:42:51

Showing top 50 of 70 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 46.6K IPv4 addresses distributed across 38 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: 2026-10-27 10:54:05 UTC
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