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Autonomous System

AS20712

Andrews & Arnold Ltd

Announced IPs
148,979
CIDR prefixes
161
ASN
AS20712

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.

69/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Enterprise allocation +4
  • Trust score 69 / 100

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

About Andrews & Arnold

Andrews & Arnold Ltd is an Internet service provider based in Bracknell, England. Launched in 1998, the company serves businesses and home users.

Founded
1997
Headquarters
Bracknell
Industry
telecommunications industry

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 20-50Gbps
Geographic scope Global
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-AA

Present at 3 internet exchanges: LONAP: LON0, LINX LON2, LINX LON1: Main

Web3 footprint

AS20712 hosts 1 observed decentralized-network node 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
81.2.64.0/18 16.4K
95.4%
Andrews & Arnold Ltd GB England Northwood
81.187.192.0/18 16.4K
91.6%
Andrews & Arnold Ltd GB England Northampton
90.155.0.0/18 16.4K
98.9%
Andrews & Arnold Ltd GB England Maidstone
81.2.96.0/19 8.2K
96.0%
Andrews & Arnold Ltd GB England Northwood
81.187.0.0/19 8.2K
95.2%
Andrews & Arnold Ltd GB England Greenwich
81.187.64.0/19 8.2K
95.7%
Andrews & Arnold Ltd GB England Bramhope
81.187.160.0/19 8.2K
95.1%
Andrews & Arnold Ltd GB England Barking
90.155.64.0/19 8.2K
98.0%
Andrews & Arnold Ltd GB England Saffron Walden
217.169.0.0/19 8.2K
92.0%
Andrews & Arnold Ltd GB England Bracknell
5.172.160.0/20 4.1K
100.0%
Andrews & Arnold Ltd GB — —
81.2.80.0/20 4.1K
95.3%
Andrews & Arnold Ltd GB England Bristol
81.187.0.0/20 4.1K
93.8%
Andrews & Arnold Ltd GB England Greenwich
81.187.48.0/20 4.1K
96.9%
Andrews & Arnold Ltd GB England Weybridge
81.187.112.0/20 4.1K
96.6%
Andrews & Arnold Ltd GB England Wolverhampton
81.187.144.0/20 4.1K
96.6%
Andrews & Arnold Ltd GB England Hemel Hempstead
81.187.208.0/20 4.1K
90.9%
Andrews & Arnold Ltd GB England Northampton
81.187.240.0/20 4.1K
94.1%
Andrews & Arnold Ltd GB England Woking
90.155.96.0/20 4.1K
99.4%
Andrews & Arnold Ltd GB — —
178.238.144.0/20 4.1K
94.7%
Andrews & Arnold Ltd GB England Fulham
81.2.72.0/21 2.0K
96.9%
Andrews & Arnold Ltd GB England Ipswich
81.187.24.0/21 2.0K
98.0%
Andrews & Arnold Ltd GB England City of Westminster
81.187.32.0/21 2.0K
95.9%
Andrews & Arnold Ltd GB England Wimbledon
81.187.56.0/21 2.0K
98.2%
Andrews & Arnold Ltd GB England Weybridge
81.187.136.0/21 2.0K
97.3%
Andrews & Arnold Ltd GB England Market Harborough
81.187.192.0/21 2.0K
92.4%
Andrews & Arnold Ltd GB England Radlett
81.187.232.0/21 2.0K
88.4%
Andrews & Arnold Ltd GB England Abingdon
81.2.68.0/22 1.0K
89.8%
Andrews & Arnold Ltd GB England Ipswich
81.187.16.0/22 1.0K
97.7%
Andrews & Arnold Ltd GB England City of Westminster
81.187.44.0/22 1.0K
90.9%
Andrews & Arnold Ltd GB England Wimbledon
81.187.52.0/22 1.0K
93.2%
Andrews & Arnold Ltd GB England Weybridge
81.187.132.0/22 1.0K
97.4%
Andrews & Arnold Ltd GB England Woodmancote
81.187.200.0/22 1.0K
80.3%
Andrews & Arnold Ltd GB England Radlett
81.187.224.0/22 1.0K
98.6%
Andrews & Arnold Ltd GB England Abingdon
94.116.12.0/22 1.0K
0.0%
Andrews & Arnold Ltd GB — —
94.116.32.0/22 1.0K
0.0%
Andrews & Arnold Ltd GB — —
94.116.152.0/22 1.0K
0.0%
Andrews & Arnold Ltd GB — —
94.116.184.0/22 1.0K
0.0%
Andrews & Arnold Ltd GB — —
94.116.196.0/22 1.0K
0.0%
Andrews & Arnold Ltd GB — —
94.116.236.0/22 1.0K
0.0%
Andrews & Arnold Ltd GB — —
94.194.88.0/22 1.0K
0.0%
Andrews & Arnold Ltd GB — —
109.205.152.0/22 1.0K
0.0%
Andrews & Arnold Ltd GB England Haslemere
188.191.132.0/22 1.0K
99.4%
Andrews & Arnold Ltd GB — —
194.4.172.0/22 1.0K
99.3%
Andrews & Arnold Ltd GB — —
81.2.64.0/23 512
96.3%
Andrews & Arnold Ltd GB England Ipswich
81.187.40.0/23 512
90.4%
Andrews & Arnold Ltd GB — —
81.187.50.0/23 512
97.9%
Andrews & Arnold Ltd GB England Weybridge
81.187.130.0/23 512
99.2%
Andrews & Arnold Ltd GB — —
81.187.206.0/23 512
91.8%
Andrews & Arnold Ltd GB England Radlett
81.187.230.0/23 512
98.2%
Andrews & Arnold Ltd GB England Abingdon
185.6.132.0/23 512
0.0%
Andrews & Arnold Ltd GB England Pulborough
44.30.117.0/24 256
0.0%
Andrews & Arnold Ltd US — —
44.31.91.0/24 256
0.0%
Andrews & Arnold Ltd US — —
44.31.166.0/24 256
0.0%
Andrews & Arnold Ltd US — —
44.31.241.0/24 256
32.0%
Andrews & Arnold Ltd US — —
44.32.156.0/24 256
1.6%
Andrews & Arnold Ltd US — —
45.88.21.0/24 256
0.0%
Andrews & Arnold Ltd NL North Holland Amsterdam
45.88.23.0/24 256
0.0%
Andrews & Arnold Ltd NL North Holland Amsterdam
45.89.37.0/24 256
0.0%
Andrews & Arnold Ltd NL North Holland Amsterdam
45.89.39.0/24 256
0.0%
Andrews & Arnold Ltd NL North Holland Amsterdam
45.92.3.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.129.89.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.129.91.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.134.249.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.134.251.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.135.9.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.135.11.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.136.217.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.136.219.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.138.77.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.138.79.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.139.33.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.139.35.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.139.229.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.139.231.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.140.69.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.140.71.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.140.134.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.140.215.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.141.49.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.141.51.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.142.205.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.142.207.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.144.157.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
45.144.159.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
51.146.73.0/24 256
0.0%
Andrews & Arnold Ltd GB England Wandsworth
51.194.130.0/24 256
0.0%
Andrews & Arnold Ltd GB England Towcester
81.2.67.0/24 256
97.7%
Andrews & Arnold Ltd GB England Ipswich
81.187.20.0/24 256
98.4%
Andrews & Arnold Ltd GB England City of Westminster
81.187.23.0/24 256
80.1%
Andrews & Arnold Ltd GB England City of Westminster
81.187.43.0/24 256
98.0%
Andrews & Arnold Ltd GB — —
81.187.48.0/24 256
98.0%
Andrews & Arnold Ltd GB England Weybridge
81.187.129.0/24 256
99.2%
Andrews & Arnold Ltd GB — —
81.187.205.0/24 256
89.5%
Andrews & Arnold Ltd GB England Radlett
81.187.229.0/24 256
92.2%
Andrews & Arnold Ltd GB England Abingdon
87.232.230.0/24 256
0.0%
Andrews & Arnold Ltd IE — —
91.190.97.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
91.190.105.0/24 256
0.0%
Andrews & Arnold Ltd NL — —
91.200.61.0/24 256
13.7%
Andrews & Arnold Ltd GB — —
91.208.66.0/24 256
9.0%
Andrews & Arnold Ltd GB — —
91.240.176.0/24 256
100.0%
Andrews & Arnold Ltd GB — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS20712 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
90.155.67.0/24 41,527 2026-11-13 13:32:40
90.155.53.0/24 41,497 2026-11-13 13:32:40
91.244.239.0/24 37,339 2026-11-13 13:32:37
81.2.90.0/24 20,305 2026-06-26 13:15:39
5.172.160.0/20 19,886 2026-11-13 13:32:37
192.150.92.0/24 17,983 2026-11-13 13:32:28
44.30.117.0/24 17,958 2026-11-13 13:32:46
44.31.91.0/24 17,953 2026-11-13 13:32:46
51.194.130.0/24 17,602 2026-11-13 13:32:37
188.220.10.0/24 16,665 2026-11-13 13:32:37
81.187.30.0/23 16,310 2026-11-13 13:32:37
45.134.251.0/24 16,226 2026-11-13 13:32:37
45.129.89.0/24 15,861 2026-11-13 13:32:37
91.200.61.0/24 15,847 2026-11-13 13:32:37
90.155.0.0/22 15,752 2026-11-13 13:32:37
45.134.249.0/24 15,730 2026-11-13 13:32:37
90.155.4.0/22 15,688 2026-11-13 13:32:37
91.190.105.0/24 15,658 2026-11-13 13:32:37
91.190.97.0/24 15,628 2026-11-13 13:32:37
45.139.33.0/24 15,474 2026-11-13 13:32:37
90.155.0.0/18 15,472 2026-11-13 13:32:37
45.142.205.0/24 15,434 2026-11-13 13:32:37
45.139.35.0/24 15,423 2026-11-13 13:32:37
45.135.11.0/24 15,408 2026-11-13 13:32:37
45.142.207.0/24 15,401 2026-11-13 13:32:37
45.89.39.0/24 15,396 2026-11-13 13:32:37
90.155.96.0/20 15,396 2026-11-13 13:32:37
45.140.215.0/24 15,390 2026-11-13 13:32:37
45.139.229.0/24 15,384 2026-11-13 13:32:37
45.144.159.0/24 15,378 2026-11-13 13:32:37
45.139.231.0/24 15,367 2026-11-13 13:32:37
90.155.64.0/19 15,365 2026-11-13 13:32:37
194.62.124.0/24 15,293 2026-11-13 13:32:37
45.88.23.0/24 15,244 2026-11-13 13:32:37
45.138.79.0/24 15,241 2026-11-13 13:32:37
45.141.49.0/24 15,238 2026-11-13 13:32:37
45.140.71.0/24 15,233 2026-11-13 13:32:37
45.136.219.0/24 15,224 2026-11-13 13:32:37
81.2.64.0/18 15,224 2026-11-13 13:32:37
45.141.51.0/24 15,222 2026-11-13 13:32:37
45.135.9.0/24 15,220 2026-11-13 13:32:37
45.144.157.0/24 15,220 2026-11-13 13:32:37
45.138.77.0/24 15,219 2026-11-13 13:32:37
45.140.134.0/24 15,212 2026-11-13 13:32:37
81.187.0.0/16 15,208 2026-11-13 13:32:37
45.136.217.0/24 15,207 2026-11-13 13:32:37
45.88.21.0/24 15,203 2026-11-13 13:32:37
45.89.37.0/24 15,202 2026-11-13 13:32:37
45.92.3.0/24 15,193 2026-11-13 13:32:37
45.129.91.0/24 15,191 2026-11-13 13:32:37

Showing top 50 of 96 announced prefixes by sample volume.

Frequently Asked Questions

What is AS20712?

AS20712 is an Autonomous System Number assigned to Andrews & Arnold 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 AS20712 announce?

AS20712 announces 149.0K IPv4 addresses distributed across 161 routed CIDR prefixes. The network is registered in United Kingdom.

Who operates AS20712?

AS20712 is operated by Andrews & Arnold Ltd. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.

What country is AS20712 registered in?

AS20712 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: 2026-11-13 14:09:05 UTC
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