AS51809 BRSK Limited — Informations ASN

AS51809BRSK LimitedFAI

WHOIS Topology

United Kingdom · RIPE NCCbrsk.co.uk

Business linesHome broadbandTor relays

IPv4 addresses

30 976

39 announced prefixes

IPv6 addresses

6.33 × 10²⁹

1 announced prefixes

BGP neighbours

…

CAIDA rank

#8 486

Customer cone 2 ASNs

Estimated users

378 k

APNIC: 380 k

RPKI

83% valid

0 invalid · 7 not covered

Average purity

216 sampled IPs

IXPs / facilities

0 / 1

Operator self-reported

History

How prefixes were announced and changed hands, registration changes, and outage or hijack incidents.

Loading routing history…

IP ranges

Currently announced prefixes with their RIR registration and geolocation.

Prefix	RPKI	Registration	Geolocation	Addresses
31.98.80.0/20	Not found	AS51809RIPE	Canary Wharf	4 096
88.97.176.0/20	Valid	BRSK-CGNAT-2RIPE	Manchester	4 096
31.98.72.0/21	Not found	AS51809RIPE	Canary Wharf	2 048
45.61.104.0/21	Not found	—	City of London	2 048
63.135.72.0/21	Valid	UK-BRSK-20031121RIPE	Manchester	2 048
88.97.160.0/21	Valid	UK-BRSK-20062024RIPE	Manchester	2 048
104.238.40.0/21	Not found	—	City of London	2 048
45.41.148.0/22	Not found	—	City of London	1 024
45.82.140.0/22	Valid	UK-BRSK-20190523RIPE	Manchester	1 024
67.208.52.0/22	Valid	UK-BRSK-20200327RIPE	Sale	1 024
89.127.224.0/22	Valid	UK-YOUFIBRE-20260908RIPE	United Kingdom	1 024
185.138.196.0/22	Valid	UK-YOUFIBRE-20160215RIPE	Manchester	1 024
104.238.58.0/23	Not found	—	City of London	512
104.238.62.0/23	Not found	—	City of London	512
185.232.119.0/24	Valid	UK-BRSK-20210114RIPE	City of London	256
195.40.32.0/24	Valid	EDGOO-NETWORKS-GTTRIPE	City of LondonCross-border	256
195.40.33.0/24	Valid	EDGOO-NETWORKS-GTTRIPE	City of LondonCross-border	256
195.40.34.0/24	Valid	EDGOO-NETWORKS-GTTRIPE	City of LondonCross-border	256
195.40.35.0/24	Valid	EDGOO-NETWORKS-GTTRIPE	City of LondonCross-border	256
195.40.36.0/24	Valid	EDGOO-NETWORKS-GTTRIPE	City of LondonCross-border	256

/24 block profile

One square per /24: colour shows the risk type, shade how many addresses are flagged, stripes mark datacenter blocks. Click a square to see all 256 addresses.

/24s with data 26 / 121 （21%） · flagged 8

No risk flagsDatacenter (no flags)ProxyVPNAbuse / blocklistTorDarker = more flagged addresses; dashed = block screen only

88.97.176.0/2012/16 with data · 2 flagged

88.97.160.0/216/8 with data · 0 flagged

45.61.104.0/212/8 with data · 2 flagged

63.135.72.0/212/8 with data · 0 flagged

45.41.148.0/222/4 with data · 2 flagged

185.138.196.0/221/4 with data · 1 flagged

104.238.58.0/231/2 with data · 1 flagged

Hover a square for its numbers; click to see all 256 addresses.

Each prefix shows its 64 /24s with the most data. Built daily from lookups, neighbour sampling, public lists and block screening.

IP reputation

IPs from this network that CleanIP has analysed: purity, abuse reports and the riskiest /24 blocks.

Purity distribution

85–100 16270–84 4650–69 80–49 0

0.20%

Share of IPv4 reported or blocklisted

Listed IPs

216

Analysed IPs

Flagged = VPN, proxy, Tor or purity below 50. Samples come from user lookups and neighbour sampling, not every address in this network.

Geography

Where this network’s IPv4 addresses are located.

United Kingdom100.0%

Scope: Single country
In registered country: 100.0%

Estimated by sampling IPv4 ranges against a geolocation database.

Observation du trafic

AS51809 · 7 derniers jours

Mobile vs ordinateur

Ordinateur49.9%Mobile50.1%

Adoption et usage

Adoption et usage des principaux protocoles

Version du protocole Internet (IP)

IPv437.9%IPv662.1%

Version HTTP

HTTP/1.x

14.7%HTTP/2

58.9%HTTP/3

26.4%

HTTP vs HTTPS

98.1% HTTPS (chiffré)

HTTP en clair 1.9%

Version TLS

TLS 1.0/1.1< 0.1%TLS 1.27.7%TLS 1.365.3%QUIC26.9%

Sécurité et attaques

Aperçu du trafic d'attaque sur les couches réseau et application

Attaques de couche 7

GET

86.0%POST

13.1%OPTIONS

0.4%HEAD

0.3%PATCH

0.2%Autre

< 0.1%

Annonces BGP

Annonces de routes BGP par heure sur les 7 derniers jours

216 512

Total sur 7 jours

41 879

Pic horaire

Données : Cloudflare Radar, sous licence CC BY-NC 4.0

Activity

Hourly traffic over the last 7 days, normalized to this network’s peak.

A pronounced day/night rhythm, typical of networks with human users.

	00						06						12						18
Mon
Tue
Wed
Thu
Fri
Sat
Sun

Times in UTCLessMore

Peak hour: 19:00–20:00
Active hours: 17 hrs
Weekend vs weekday: Weekdays ≈ weekends
Busiest day: Sun

Chargement…

Opérateurs amont et voisins BGP

AS51809Page dédiée

Chargement des opérateurs amont et des voisins…

WHOIS record

The registry’s record for this AS number: holder, status, dates and contacts.

Sources

Where the information on this page comes from and when it was updated.

Information	Source	Updated
Registered country	RIR daily delegation statistics	2026-10-22
Registered address & allocation date	RIR registration data (RDAP)	2026-10-15
Organization & company country	AS-to-organization data	2026-10-21
Network type	CleanIP ASN canon	2026-10-20
Exchanges & facilities	Operator self-reported interconnection data	2026-10-21
Announced prefixes & BGP neighbours	Public BGP routing data	2026-10-22
IPv4 geography	Geolocation database	—
RPKI validation	RPKI ROA validation data	2026-10-22
Rank & customer cone	CAIDA AS Rank	2026-10-01
Estimated users (APNIC)	APNIC Labs user estimates	2026-10-20
Network tags	Public routing data community tags	2026-10-22
IP reputation	CleanIP lookups and neighbour sampling	—

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Recoupement multisource · Données de réputation internes · Uniquement des données réelles