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Autonomous System

AS13037

Zen Internet Ltd

Announced IPs
527,616
CIDR prefixes
36
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 v1.2.1 — 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 27 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
82.68.0.0/15 131.1K
99.9%
Zen Internet Ltd GB England Dunstable
51.148.0.0/16 65.5K
98.5%
Zen Internet Ltd GB England Camden
51.155.0.0/16 65.5K
96.1%
Zen Internet Ltd GB England Warwick
82.71.0.0/16 65.5K
64.6%
Zen Internet Ltd GB England Islington
217.155.0.0/16 65.5K
100.0%
Zen Internet Ltd GB England Slough
62.3.64.0/18 16.4K
99.5%
Zen Internet Ltd GB England Jordans
77.104.128.0/18 16.4K
100.0%
Zen Internet Ltd GB England London
88.97.0.0/18 16.4K
100.0%
Zen Internet Ltd GB England High Wycombe
146.66.64.0/18 16.4K
99.5%
Zen Internet Ltd GB England Rochdale
88.98.32.0/19 8.2K
99.5%
Zen Internet Ltd GB England Kettering
88.98.64.0/19 8.2K
99.3%
Zen Internet Ltd GB England Kensington
88.98.128.0/19 8.2K
99.6%
Zen Internet Ltd GB England Crewe
212.23.0.0/19 8.2K
97.7%
Zen Internet Ltd GB England City of Westminster
88.97.64.0/20 4.1K
100.0%
Zen Internet Ltd GB England Hounslow
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 Hackney
88.98.176.0/20 4.1K
99.6%
Zen Internet Ltd GB England Wakefield
188.122.32.0/20 4.1K
100.0%
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
99.8%
Zen Internet Ltd GB England Rochdale
188.122.48.0/21 2.0K
100.0%
Zen Internet Ltd GB — —
88.97.88.0/22 1.0K
100.0%
Zen Internet Ltd GB England Swindon
88.98.172.0/22 1.0K
99.5%
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
100.0%
Zen Internet Ltd GB England Leicester
185.183.100.0/22 1.0K
100.0%
Zen Internet Ltd GB England Beaconsfield
188.122.56.0/22 1.0K
99.9%
Zen Internet Ltd GB — —
88.98.16.0/23 512
99.6%
Zen Internet Ltd GB Scotland Stonehaven
88.98.22.0/23 512
99.6%
Zen Internet Ltd GB England Rochdale
88.98.170.0/23 512
99.6%
Zen Internet Ltd GB England Rochdale
188.122.60.0/23 512
100.0%
Zen Internet Ltd GB — —
88.98.18.0/24 256
99.2%
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 — —
188.122.63.0/24 256
100.0%
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 27,373 2026-10-13 16:58:52
91.235.214.0/24 24,496 2026-10-13 17:25:43
88.98.22.0/23 11,380 2026-10-13 16:55:04
77.104.128.0/18 11,313 2026-10-13 16:55:04
88.98.128.0/19 11,259 2026-10-13 16:55:04
88.98.160.0/21 11,254 2026-10-13 16:55:04
88.98.24.0/21 11,238 2026-10-13 16:55:04
88.98.21.0/24 11,227 2026-10-13 16:55:04
51.148.0.0/16 11,207 2026-10-13 16:55:04
88.98.18.0/24 11,205 2026-10-13 16:55:04
88.97.0.0/18 11,203 2026-10-13 16:55:04
51.155.0.0/16 11,202 2026-10-13 16:55:04
62.3.64.0/18 11,196 2026-10-13 16:55:04
88.97.64.0/20 11,156 2026-10-13 16:55:04
88.98.0.0/20 11,155 2026-10-13 16:55:04
88.98.16.0/23 11,148 2026-10-13 16:55:04
88.97.96.0/20 11,144 2026-10-13 16:55:04
88.98.172.0/22 11,140 2026-10-13 16:55:04
88.98.32.0/19 11,134 2026-10-13 16:55:04
88.98.176.0/20 11,127 2026-10-13 16:55:04
88.97.88.0/22 11,114 2026-10-13 16:55:04
82.71.0.0/16 11,108 2026-10-13 16:55:04
88.98.64.0/19 11,101 2026-10-13 16:55:04
88.98.170.0/23 11,089 2026-10-13 16:55:04
82.68.0.0/15 11,063 2026-10-13 16:55:04
146.66.64.0/18 11,045 2026-10-13 16:55:04
185.81.232.0/22 11,018 2026-10-13 16:55:04
185.183.100.0/22 10,998 2026-10-13 16:55:04
185.169.116.0/23 10,935 2026-10-13 16:55:04
185.169.118.0/23 10,859 2026-10-13 16:55:04
217.155.0.0/16 10,657 2026-10-13 16:55:04
212.23.0.0/19 10,639 2026-10-13 16:55:04
188.122.32.0/20 10,597 2026-10-13 16:55:04
188.122.60.0/23 10,586 2026-10-13 16:55:04
188.122.56.0/22 10,571 2026-10-13 16:55:04
188.122.48.0/21 10,554 2026-10-13 16:55:04
188.122.63.0/24 10,552 2026-10-13 16:55:04
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 527.6K IPv4 addresses distributed across 36 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: 2026-10-13 18:09:05 UTC
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