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AS51809 BRSK LimitedのASN検索結果 — ネットワーク規模・BGPルーティング・登録情報

GBAS51809BRSK LimitedISP
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

37.8万

APNIC: 38万

RPKI

83% valid

0 invalid · 7 not covered

Average purity

91

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.

PrefixRPKIRegistrationGeolocationAddresses
31.98.80.0/20Not foundGBAS51809RIPEGBCanary Wharf4,096
88.97.176.0/20ValidGBBRSK-CGNAT-2RIPEGBManchester4,096
31.98.72.0/21Not foundGBAS51809RIPEGBCanary Wharf2,048
45.61.104.0/21Not found—GBCity of London2,048
63.135.72.0/21ValidGBUK-BRSK-20031121RIPEGBManchester2,048
88.97.160.0/21ValidGBUK-BRSK-20062024RIPEGBManchester2,048
104.238.40.0/21Not found—GBCity of London2,048
45.41.148.0/22Not found—GBCity of London1,024
45.82.140.0/22ValidGBUK-BRSK-20190523RIPEGBManchester1,024
67.208.52.0/22ValidGBUK-BRSK-20200327RIPEGBSale1,024
89.127.224.0/22ValidGBUK-YOUFIBRE-20260908RIPEGBUnited Kingdom1,024
185.138.196.0/22ValidGBUK-YOUFIBRE-20160215RIPEGBManchester1,024
104.238.58.0/23Not found—GBCity of London512
104.238.62.0/23Not found—GBCity of London512
185.232.119.0/24ValidGBUK-BRSK-20210114RIPEGBCity of London256
195.40.32.0/24ValidPTEDGOO-NETWORKS-GTTRIPEGBCity of LondonCross-border256
195.40.33.0/24ValidPTEDGOO-NETWORKS-GTTRIPEGBCity of LondonCross-border256
195.40.34.0/24ValidPTEDGOO-NETWORKS-GTTRIPEGBCity of LondonCross-border256
195.40.35.0/24ValidPTEDGOO-NETWORKS-GTTRIPEGBCity of LondonCross-border256
195.40.36.0/24ValidPTEDGOO-NETWORKS-GTTRIPEGBCity of LondonCross-border256

/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

63

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.

  • GB United Kingdom
Scope
Single country
In registered country
100.0%

Estimated by sampling IPv4 ranges against a geolocation database.

トラフィック観測

AS51809 · 過去7日間
モバイルとデスクトップ
デスクトップ 49.9%モバイル 50.1%
デスクトップ49.9%モバイル50.1%

普及と利用状況

主要プロトコルの普及と利用状況

インターネットプロトコル（IP）のバージョン
IPv4 37.9%IPv6 62.1%62.1%IPv6
IPv437.9%IPv662.1%
HTTPバージョン
HTTP/1.x
14.7%HTTP/2
58.9%HTTP/3
26.4%
HTTPとHTTPS
98.1% HTTPS（暗号化）
HTTP（暗号化なし）1.9%
TLSバージョン
TLS 1.0/1.1< 0.1%TLS 1.27.7%TLS 1.365.3%QUIC26.9%

セキュリティと攻撃

ネットワーク層とアプリケーション層の攻撃トラフィックの分析

レイヤー7攻撃
GET
86.0%POST
13.1%OPTIONS
0.4%HEAD
0.3%PATCH
0.2%その他
< 0.1%

BGPアナウンス数

過去7日間の1時間ごとのBGP経路アナウンス数

216,512
7日間の合計
41,879
1時間あたりのピーク

データ：Cloudflare Radar、ライセンス：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.

00061218
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

入居データセンター

読み込み中…

BGPの上流と近隣ネットワーク

AS51809専用ページ
上流と近隣ネットワークを読み込み中…

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.

InformationSourceUpdated
Registered countryRIR daily delegation statistics2026-10-22
Registered address & allocation dateRIR registration data (RDAP)2026-10-15
Organization & company countryAS-to-organization data2026-10-21
Network typeCleanIP ASN canon2026-10-20
Exchanges & facilitiesOperator self-reported interconnection data2026-10-21
Announced prefixes & BGP neighboursPublic BGP routing data2026-10-22
IPv4 geographyGeolocation database—
RPKI validationRPKI ROA validation data2026-10-22
Rank & customer coneCAIDA AS Rank2026-10-01
Estimated users (APNIC)APNIC Labs user estimates2026-10-20
Network tagsPublic routing data community tags2026-10-22
IP reputationCleanIP lookups and neighbour sampling—

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