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Autonomous System

AS8851

GCI Network Solutions Limited

Announced IPs
494,080
CIDR prefixes
731
ASN
AS8851

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

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

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 50-100Gbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS-GCICOM

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

AS8851 — global IP footprint

Cities where AS8851 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
159.15.0.0/16 65.5K
0.0%
GCI Network Solutions Limited GB England Exeter
91.84.128.0/17 32.8K
4.0%
GCI Network Solutions Limited GB England Berkhamsted
91.84.0.0/18 16.4K
5.7%
GCI Network Solutions Limited GB Northern Ireland Bangor
91.85.64.0/18 16.4K
2.1%
GCI Network Solutions Limited GB
91.85.192.0/18 16.4K
5.3%
GCI Network Solutions Limited GB England Norwich
91.85.32.0/19 8.2K
0.1%
GCI Network Solutions Limited GB England Streatham
91.85.128.0/19 8.2K
2.8%
GCI Network Solutions Limited GB
109.176.96.0/19 8.2K
1.1%
GCI Network Solutions Limited GB England Chard
194.207.0.0/19 8.2K
0.1%
GCI Network Solutions Limited GB England Tower Hamlets
77.107.64.0/20 4.1K
42.4%
GCI Network Solutions Limited GB England Maidenhead
81.5.128.0/20 4.1K
76.1%
GCI Network Solutions Limited GB England Kensington
81.5.160.0/20 4.1K
7.9%
GCI Network Solutions Limited GB England Stoke-on-Trent
82.152.32.0/20 4.1K
10.0%
GCI Network Solutions Limited GB England Nottingham
82.152.144.0/20 4.1K
10.9%
GCI Network Solutions Limited GB England Bridlington
82.152.192.0/20 4.1K
9.8%
GCI Network Solutions Limited GB England Kidlington
82.153.16.0/20 4.1K
8.5%
GCI Network Solutions Limited GB England Windsor
82.153.160.0/20 4.1K
10.1%
GCI Network Solutions Limited GB England Princes Risborough
89.213.80.0/20 4.1K
99.2%
GCI Network Solutions Limited GB England Purfleet-on-Thames
109.176.80.0/20 4.1K
3.1%
GCI Network Solutions Limited GB England Runcorn
109.176.176.0/20 4.1K
0.7%
GCI Network Solutions Limited GB England Bracknell
194.105.64.0/20 4.1K
0.5%
GCI Network Solutions Limited GB
77.93.128.0/21 2.0K
85.8%
GCI Network Solutions Limited GB
81.5.128.0/21 2.0K
74.0%
GCI Network Solutions Limited GB
81.5.144.0/21 2.0K
9.2%
GCI Network Solutions Limited GB England Camden
81.5.168.0/21 2.0K
6.0%
GCI Network Solutions Limited GB England Wolverhampton
81.5.176.0/21 2.0K
12.9%
GCI Network Solutions Limited GB England Aldershot
81.168.0.0/21 2.0K
9.7%
GCI Network Solutions Limited GB England Burntwood
81.168.88.0/21 2.0K
8.6%
GCI Network Solutions Limited GB Wales Cardiff
81.168.104.0/21 2.0K
3.1%
GCI Network Solutions Limited GB England Swanwick
82.152.24.0/21 2.0K
8.8%
GCI Network Solutions Limited GB England Northampton
82.152.168.0/21 2.0K
1.8%
GCI Network Solutions Limited GB England Dudley
82.152.200.0/21 2.0K
17.2%
GCI Network Solutions Limited GB Scotland Dalrymple
82.152.208.0/21 2.0K
0.0%
GCI Network Solutions Limited GB
82.152.216.0/21 2.0K
0.0%
GCI Network Solutions Limited GB
82.153.8.0/21 2.0K
7.5%
GCI Network Solutions Limited GB England London
82.153.88.0/21 2.0K
4.0%
GCI Network Solutions Limited GB
82.153.104.0/21 2.0K
0.0%
GCI Network Solutions Limited GB England Whitchurch
82.153.120.0/21 2.0K
0.0%
GCI Network Solutions Limited GB
82.153.192.0/21 2.0K
4.0%
GCI Network Solutions Limited GB
82.163.0.0/21 2.0K
12.9%
GCI Network Solutions Limited GB England Bishop's Stortford
85.159.128.0/21 2.0K
9.9%
GCI Network Solutions Limited GB England Wakefield
86.54.112.0/21 2.0K
1.6%
GCI Network Solutions Limited GB
89.31.232.0/21 2.0K
2.3%
GCI Network Solutions Limited GB
89.213.48.0/21 2.0K
20.0%
GCI Network Solutions Limited GB
95.130.96.0/21 2.0K
1.4%
GCI Network Solutions Limited GB England Bedford
109.176.0.0/21 2.0K
1.8%
GCI Network Solutions Limited GB England Tooting
109.176.64.0/21 2.0K
3.3%
GCI Network Solutions Limited GB England Ringwood
109.176.80.0/21 2.0K
3.0%
GCI Network Solutions Limited GB England Runcorn
109.176.88.0/21 2.0K
3.3%
GCI Network Solutions Limited GB England Runcorn
109.176.136.0/21 2.0K
0.4%
GCI Network Solutions Limited GB England Plymouth
109.176.144.0/21 2.0K
0.2%
GCI Network Solutions Limited GB England Saffron Walden
158.255.8.0/21 2.0K
0.5%
GCI Network Solutions Limited GB England Bedford
213.152.32.0/21 2.0K
86.0%
GCI Network Solutions Limited GB England Preston
213.152.48.0/21 2.0K
0.0%
GCI Network Solutions Limited GB England South Molton
37.98.144.0/22 1.0K
0.0%
GCI Network Solutions Limited GB
62.164.132.0/22 1.0K
0.9%
GCI Network Solutions Limited GB England Taunton
62.164.136.0/22 1.0K
2.3%
GCI Network Solutions Limited GB
62.164.188.0/22 1.0K
2.6%
GCI Network Solutions Limited GB England Walsall
77.93.128.0/22 1.0K
99.0%
GCI Network Solutions Limited GB
77.93.144.0/22 1.0K
99.2%
GCI Network Solutions Limited GB
77.107.108.0/22 1.0K
2.2%
GCI Network Solutions Limited GB England Stockport
77.107.120.0/22 1.0K
2.8%
GCI Network Solutions Limited GB England Stockport
79.99.72.0/22 1.0K
0.9%
GCI Network Solutions Limited GB England London
80.240.80.0/22 1.0K
12.7%
GCI Network Solutions Limited GB England Kingston upon Thames
81.5.136.0/22 1.0K
75.2%
GCI Network Solutions Limited GB
81.5.152.0/22 1.0K
10.5%
GCI Network Solutions Limited GB England Camden
81.5.164.0/22 1.0K
14.9%
GCI Network Solutions Limited GB England Bedford
81.5.176.0/22 1.0K
15.7%
GCI Network Solutions Limited GB
81.5.180.0/22 1.0K
10.1%
GCI Network Solutions Limited GB England Tewkesbury
81.5.184.0/22 1.0K
5.9%
GCI Network Solutions Limited GB England Ross on Wye
81.168.0.0/22 1.0K
10.3%
GCI Network Solutions Limited GB
81.168.12.0/22 1.0K
9.8%
GCI Network Solutions Limited GB England Burntwood
81.168.20.0/22 1.0K
0.0%
GCI Network Solutions Limited GB
81.168.24.0/22 1.0K
0.0%
GCI Network Solutions Limited GB England Watford
81.168.36.0/22 1.0K
11.7%
GCI Network Solutions Limited GB England East Finchley
81.168.44.0/22 1.0K
6.5%
GCI Network Solutions Limited GB England East Finchley
81.168.52.0/22 1.0K
0.0%
GCI Network Solutions Limited GB England Wells
81.168.56.0/22 1.0K
9.6%
GCI Network Solutions Limited GB England Wells
81.168.68.0/22 1.0K
1.4%
GCI Network Solutions Limited GB England Thame
81.168.72.0/22 1.0K
13.4%
GCI Network Solutions Limited GB England Worcester
81.168.104.0/22 1.0K
3.3%
GCI Network Solutions Limited GB England Telford
81.168.108.0/22 1.0K
2.8%
GCI Network Solutions Limited GB England Swanwick
81.168.112.0/22 1.0K
6.2%
GCI Network Solutions Limited GB England Royal Leamington Spa
82.152.20.0/22 1.0K
12.4%
GCI Network Solutions Limited GB England Northampton
82.152.24.0/22 1.0K
6.2%
GCI Network Solutions Limited GB
82.152.92.0/22 1.0K
13.1%
GCI Network Solutions Limited GB
82.152.116.0/22 1.0K
9.6%
GCI Network Solutions Limited GB
82.152.124.0/22 1.0K
17.3%
GCI Network Solutions Limited GB
82.152.180.0/22 1.0K
7.6%
GCI Network Solutions Limited GB England Solihull
82.152.188.0/22 1.0K
5.8%
GCI Network Solutions Limited GB
82.152.192.0/22 1.0K
0.0%
GCI Network Solutions Limited GB
82.152.196.0/22 1.0K
5.0%
GCI Network Solutions Limited GB
82.152.208.0/22 1.0K
0.0%
GCI Network Solutions Limited GB
82.152.212.0/22 1.0K
0.0%
GCI Network Solutions Limited GB
82.152.216.0/22 1.0K
0.0%
GCI Network Solutions Limited GB
82.152.220.0/22 1.0K
0.0%
GCI Network Solutions Limited GB
82.152.228.0/22 1.0K
15.5%
GCI Network Solutions Limited GB
82.152.244.0/22 1.0K
9.3%
GCI Network Solutions Limited GB England Liss
82.152.252.0/22 1.0K
0.0%
GCI Network Solutions Limited GB
82.153.12.0/22 1.0K
7.3%
GCI Network Solutions Limited GB

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS8851 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
193.27.212.0/23 5,315 2026-07-18 12:26:45
91.85.192.0/18 5,099 2026-07-18 12:15:47
213.210.0.0/18 5,069 2026-07-18 12:15:47
91.85.64.0/18 5,028 2026-07-18 12:18:22
194.164.86.0/24 5,025 2026-07-18 12:16:34
185.20.34.0/24 5,021 2026-07-18 12:17:37
91.85.128.0/19 5,012 2026-07-18 12:17:29
213.218.208.0/20 5,006 2026-07-18 12:17:06
194.164.80.0/22 4,994 2026-07-18 12:19:45
82.152.0.0/15 4,991 2026-07-18 12:22:43
194.164.85.0/24 4,987 2026-07-18 12:21:43
81.168.0.0/17 4,981 2026-07-18 12:19:09
62.169.150.0/24 4,980 2026-07-18 12:18:50
185.20.32.0/22 4,978 2026-07-18 12:23:35
217.145.64.0/20 4,977 2026-07-18 12:27:13
194.164.12.0/24 4,961 2026-07-18 12:24:09
212.38.64.0/19 4,961 2026-07-18 12:22:10
194.164.140.0/22 4,946 2026-07-18 12:26:20
213.130.128.0/19 4,945 2026-07-18 12:30:34
194.164.144.0/24 4,943 2026-07-18 12:28:10
109.176.0.0/16 4,942 2026-07-18 12:30:52
91.84.128.0/17 4,938 2026-07-18 12:26:15
91.85.32.0/19 4,935 2026-07-18 12:31:37
194.164.106.0/24 4,931 2026-07-18 12:30:31
213.218.224.0/19 4,929 2026-07-18 12:30:49
81.5.128.0/18 4,928 2026-07-18 12:36:00
91.84.0.0/18 4,928 2026-07-18 12:30:58
217.144.144.0/20 4,926 2026-07-18 12:35:39
194.105.64.0/19 4,926 2026-07-18 12:35:34
195.128.138.0/24 4,925 2026-07-18 12:36:27
194.164.100.0/24 4,924 2026-07-18 12:31:53
194.164.38.0/24 4,919 2026-07-18 12:30:01
194.164.2.0/24 4,898 2026-07-18 12:34:14
77.93.128.0/19 4,228 2026-07-18 12:18:42
89.28.232.0/21 4,226 2026-07-18 12:19:08
192.149.15.0/24 4,156 2026-07-18 12:23:43
159.15.0.0/16 4,005 2026-07-18 12:29:25
86.54.7.0/24 3,942 2026-07-18 12:36:26
185.101.44.0/22 3,933 2026-07-18 12:15:47
89.213.246.0/24 3,908 2026-07-18 12:15:47
77.107.64.0/18 3,896 2026-07-18 12:15:47
89.213.247.0/24 3,890 2026-07-18 12:15:47
195.184.228.0/23 3,887 2026-07-18 12:15:47
86.54.100.0/23 3,885 2026-07-18 12:15:47
86.54.134.0/24 3,874 2026-07-18 12:15:47
185.24.86.0/23 3,872 2026-07-18 12:15:47
62.164.189.0/24 3,867 2026-07-18 12:15:47
217.154.127.0/24 3,853 2026-07-18 12:15:47
195.26.228.0/24 3,851 2026-07-18 12:15:47
86.54.102.0/24 3,851 2026-07-18 12:15:47

Showing top 50 of 224 announced prefixes by sample volume.

Frequently Asked Questions

What is AS8851?

AS8851 is an Autonomous System Number assigned to GCI Network Solutions 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 AS8851 announce?

AS8851 announces 494.1K IPv4 addresses distributed across 731 routed CIDR prefixes. The network is registered in United Kingdom.

Who operates AS8851?

AS8851 is operated by GCI Network Solutions Limited. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.

What country is AS8851 registered in?

AS8851 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 14:40:31 UTC
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