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Autonomous System

AS13037

Zen Internet Ltd

Announced IPs
528,128
CIDR prefixes
37
ASN
AS13037

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.

70/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 300-500Gbps
Geographic scope Europe
Traffic ratio Mostly Inbound
Peering policy Selective
IRR record AS-ZEN

Present at 4 internet exchanges: LINX LON1: Main, LINX LON2, LINX Manchester, LONAP: LON0

Web3 footprint

AS13037 hosts 2 observed decentralized-network nodes across 2 networks. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

AS13037 — global IP footprint

Cities where AS13037 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
82.68.0.0/15 131.1K
99.9%
Zen Internet Ltd GB England Halifax
51.148.0.0/16 65.5K
98.7%
Zen Internet Ltd GB England Kensington
51.155.0.0/16 65.5K
90.5%
Zen Internet Ltd GB England Wakefield
82.71.0.0/16 65.5K
64.1%
Zen Internet Ltd GB England Cheadle
217.155.0.0/16 65.5K
99.8%
Zen Internet Ltd GB England Fulham
62.3.64.0/18 16.4K
98.1%
Zen Internet Ltd GB England St Albans
77.104.128.0/18 16.4K
100.0%
Zen Internet Ltd GB England Chiswick
88.97.0.0/18 16.4K
100.0%
Zen Internet Ltd GB England Harringay
146.66.64.0/18 16.4K
99.8%
Zen Internet Ltd GB England Rochdale
88.98.32.0/19 8.2K
99.5%
Zen Internet Ltd GB Wales Newport
88.98.64.0/19 8.2K
99.2%
Zen Internet Ltd GB England Islington
88.98.128.0/19 8.2K
99.6%
Zen Internet Ltd GB England Catterton
212.23.0.0/19 8.2K
97.6%
Zen Internet Ltd GB England City of Westminster
88.97.64.0/20 4.1K
100.0%
Zen Internet Ltd GB England Fulham
88.97.96.0/20 4.1K
100.0%
Zen Internet Ltd GB England Birmingham
88.98.0.0/20 4.1K
99.6%
Zen Internet Ltd GB England Fulham
88.98.176.0/20 4.1K
99.6%
Zen Internet Ltd GB England Milton Keynes
188.122.32.0/20 4.1K
93.9%
Zen Internet Ltd GB England Hounslow
88.98.24.0/21 2.0K
99.4%
Zen Internet Ltd GB England Rochdale
88.98.160.0/21 2.0K
0.0%
Zen Internet Ltd GB England Rochdale
188.122.48.0/21 2.0K
95.1%
Zen Internet Ltd GB
88.97.88.0/22 1.0K
100.0%
Zen Internet Ltd GB Wales Maenan
88.98.172.0/22 1.0K
99.6%
Zen Internet Ltd GB England Rochdale
185.81.232.0/22 1.0K
0.0%
Zen Internet Ltd GB England Rochdale
185.169.116.0/22 1.0K
97.6%
Zen Internet Ltd GB England Leicester
185.183.100.0/22 1.0K
94.8%
Zen Internet Ltd GB England Slough
188.122.56.0/22 1.0K
94.4%
Zen Internet Ltd GB
88.98.16.0/23 512
99.6%
Zen Internet Ltd GB England Accrington
88.98.22.0/23 512
99.6%
Zen Internet Ltd GB England Rochdale
88.98.170.0/23 512
92.8%
Zen Internet Ltd GB England Rochdale
188.122.60.0/23 512
92.4%
Zen Internet Ltd GB
193.19.156.0/23 512
0.0%
Zen Internet Ltd GB
88.98.18.0/24 256
99.6%
Zen Internet Ltd GB England Rochdale
88.98.21.0/24 256
99.6%
Zen Internet Ltd GB England Rochdale
91.235.214.0/24 256
0.8%
Zen Internet Ltd GB
185.6.135.0/24 256
0.0%
Zen Internet Ltd GB England Chichester
188.122.63.0/24 256
91.8%
Zen Internet Ltd GB

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS13037 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
185.6.135.0/24 19,957 2026-08-31 23:19:14
91.235.214.0/24 18,345 2026-09-01 00:45:47
77.104.128.0/18 8,576 2026-09-01 01:31:35
88.98.22.0/23 8,565 2026-09-01 00:45:44
88.98.128.0/19 8,546 2026-09-01 01:31:35
88.98.160.0/21 8,542 2026-09-01 01:31:35
51.148.0.0/16 8,526 2026-09-01 01:31:35
88.98.21.0/24 8,522 2026-09-01 00:45:44
88.98.24.0/21 8,519 2026-09-01 01:31:35
62.3.64.0/18 8,517 2026-09-01 01:31:35
51.155.0.0/16 8,512 2026-09-01 01:31:35
88.98.18.0/24 8,499 2026-09-01 00:45:44
88.97.0.0/18 8,485 2026-09-01 01:31:35
88.98.0.0/20 8,466 2026-09-01 01:31:35
88.97.64.0/20 8,466 2026-09-01 01:31:35
88.98.172.0/22 8,451 2026-09-01 01:31:35
88.98.16.0/23 8,450 2026-09-01 00:45:44
88.98.32.0/19 8,449 2026-09-01 01:31:35
88.97.96.0/20 8,444 2026-09-01 01:31:35
88.98.176.0/20 8,444 2026-09-01 01:31:35
82.71.0.0/16 8,429 2026-09-01 01:31:35
88.97.88.0/22 8,429 2026-09-01 01:31:35
88.98.170.0/23 8,422 2026-09-01 00:45:44
88.98.64.0/19 8,420 2026-09-01 01:31:35
146.66.64.0/18 8,391 2026-09-01 01:31:35
185.81.232.0/22 8,387 2026-09-01 01:31:35
82.68.0.0/15 8,357 2026-09-01 01:31:35
185.169.116.0/23 8,328 2026-09-01 00:45:44
185.169.118.0/23 8,275 2026-09-01 00:45:44
185.183.100.0/22 8,256 2026-09-01 01:31:35
188.122.60.0/23 8,065 2026-08-31 23:19:14
188.122.32.0/20 8,057 2026-09-01 01:31:35
188.122.56.0/22 8,051 2026-09-01 01:31:35
188.122.63.0/24 8,036 2026-08-31 23:19:14
212.23.0.0/19 8,033 2026-09-01 01:31:35
188.122.48.0/21 8,025 2026-09-01 01:31:35
217.155.0.0/16 8,021 2026-09-01 01:31:35
193.19.156.0/23 2,594 2026-05-29 10:03:10

Frequently Asked Questions

What is AS13037?

AS13037 is an Autonomous System Number assigned to Zen Internet 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 AS13037 announce?

AS13037 announces 528.1K IPv4 addresses distributed across 37 routed CIDR prefixes. The network is registered in United Kingdom.

Who operates AS13037?

AS13037 is operated by Zen Internet Ltd. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.

What country is AS13037 registered in?

AS13037 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: 2026-09-01 01:54:06 UTC
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