AS51918
Cerberus Networks Ltd
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.
- Baseline (neutral) 65
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 4 internet exchanges: LINX LON1: Main, LINX LON2, LONAP: LON0, Equinix London: Equinix IX - LD Metro
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 46.37.32.0/19 | 8.2K |
88.2%
|
Cerberus Networks Ltd | GB | England | Bradford |
| 83.151.224.0/19 | 8.2K |
57.8%
|
Cerberus Networks Ltd | GB | England | Fulham |
| 185.14.208.0/22 | 1.0K |
96.0%
|
Cerberus Networks Ltd | GB | England | Croydon |
| 185.117.236.0/22 | 1.0K |
0.0%
|
Cerberus Networks Ltd | GB | — | — |
| 77.73.170.0/23 | 512 |
99.6%
|
Cerberus Networks Ltd | GB | England | Leyton |
| 77.73.172.0/24 | 256 |
0.0%
|
Cerberus Networks Ltd | GB | — | — |
| 92.119.254.0/24 | 256 |
0.0%
|
Cerberus Networks Ltd | GB | England | Uckfield |
| 195.10.232.0/24 | 256 |
3.5%
|
Cerberus Networks Ltd | GB | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS51918 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 83.151.244.0/22 | 8,686 | 2026-09-10 18:08:40 |
| 46.37.60.0/22 | 8,642 | 2026-09-10 18:08:01 |
| 83.151.248.0/22 | 8,517 | 2026-09-10 18:08:40 |
| 46.37.32.0/22 | 8,494 | 2026-09-10 18:08:01 |
| 83.151.236.0/22 | 8,443 | 2026-09-10 18:08:40 |
| 77.73.172.0/24 | 8,430 | 2026-09-10 18:08:01 |
| 46.37.32.0/19 | 8,428 | 2026-09-10 18:08:01 |
| 46.37.52.0/22 | 8,413 | 2026-09-10 18:08:01 |
| 83.151.240.0/22 | 8,407 | 2026-09-10 18:08:40 |
| 195.10.232.0/24 | 8,399 | 2026-09-10 18:07:32 |
| 77.73.170.0/23 | 8,392 | 2026-09-10 18:08:01 |
| 83.151.224.0/19 | 8,388 | 2026-09-10 18:08:40 |
| 83.151.232.0/22 | 8,375 | 2026-09-10 18:08:40 |
| 83.151.224.0/22 | 8,365 | 2026-09-10 18:08:40 |
| 83.151.228.0/22 | 8,354 | 2026-09-10 18:08:40 |
| 46.37.56.0/22 | 8,352 | 2026-09-10 18:08:01 |
| 185.117.236.0/22 | 8,352 | 2026-09-10 18:08:01 |
| 83.151.252.0/22 | 8,348 | 2026-09-10 18:08:40 |
| 46.37.44.0/22 | 8,347 | 2026-09-10 18:08:01 |
| 46.37.40.0/22 | 8,323 | 2026-09-10 18:08:01 |
| 46.37.48.0/22 | 8,320 | 2026-09-10 18:08:01 |
| 185.14.208.0/22 | 8,295 | 2026-09-10 18:08:01 |
| 46.37.36.0/22 | 8,150 | 2026-09-10 18:08:01 |
| 92.119.254.0/24 | 7,918 | 2026-09-10 18:08:01 |
Frequently Asked Questions
What is AS51918?
AS51918 is an Autonomous System Number assigned to Cerberus Networks 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 AS51918 announce?
AS51918 announces 19.7K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in United Kingdom.
Who operates AS51918?
AS51918 is operated by Cerberus Networks Ltd. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.
What country is AS51918 registered in?
AS51918 is registered in United Kingdom. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
