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AS51809

BRSK Limited

AS51809 is BRSK Limited (brsk.co.uk). It announces 30,976 IPv4 addresses in 39 prefixes, and 1 IPv6 prefixes.

United Kingdom· RIPE· allocated 2021-01-15· isp

30,976
IPv4 addresses announced
39
IPv4 prefixes
1
IPv6 prefixes
82.50%
of its routes RPKI-valid
30,976
of its IPv4 geolocated
2
countries

Where its space is

The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.

  1. United Kingdom26,368 · 85.12%
  2. Portugal4,608 · 14.88%

Registry record

Its ASN Whois record, as the registry publishes it.

handle
BRSK
name
BRSK Limited
org
ORG-BL479-RIPE
org name
BRSK Limited
org address
167 - 169 5th Floor, Great Portland Street, W1W 5PF, London, UNITED KINGDOM
org country
GB
country
GB
source
ripe
status
ASSIGNED
created
2021-01-15
updated
2026-01-20
maintainer
RIPE-NCC-END-MNT|BRSK-MNT
abuse name
Brsk Abuse
abuse email
abuse@brsk.co.uk
abuse kind
role

What the databases see

Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.

IPv4 prefixes

Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.

39 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
31.98.72.0/21United Kingdomnot found172026-10-02
31.98.80.0/20United Kingdomnot found172026-10-02
45.41.148.0/22United Kingdomnot found172026-10-02
45.61.104.0/21United Kingdomnot found172026-10-02
45.82.140.0/22United Kingdomvalid172026-10-02
63.135.72.0/21United Kingdomvalid172026-10-02
67.208.52.0/22United Kingdomvalid172026-10-02
88.97.160.0/21United Kingdomvalid172026-10-02
88.97.176.0/20United Kingdomvalid172026-10-02
89.127.224.0/22United Kingdomvalid172026-10-02
104.238.40.0/21United Kingdomnot found172026-10-02
104.238.58.0/23United Kingdomnot found172026-10-02
104.238.62.0/23United Kingdomnot found172026-10-02
185.138.196.0/22United Kingdomvalid172026-10-02
185.232.119.0/24United Kingdomvalid172026-10-02
195.40.32.0/24United Kingdomvalid172026-10-02
195.40.33.0/24United Kingdomvalid172026-10-02
195.40.34.0/24United Kingdomvalid172026-10-02
195.40.35.0/24United Kingdomvalid172026-10-02
195.40.36.0/24United Kingdomvalid172026-10-02
195.40.37.0/24United Kingdomvalid172026-10-02
195.40.38.0/24Portugalvalid172026-10-02
195.40.39.0/24Portugalvalid172026-10-02
195.40.40.0/24Portugalvalid172026-10-02
195.40.41.0/24Portugalvalid172026-10-02
195.40.42.0/24Portugalvalid172026-10-02
195.40.43.0/24Portugalvalid172026-10-02
195.40.44.0/24Portugalvalid172026-10-02
195.40.45.0/24Portugalvalid172026-10-02
195.40.46.0/24Portugalvalid172026-10-02
195.40.47.0/24Portugalvalid172026-10-02
195.40.48.0/24Portugalvalid172026-10-02
195.40.49.0/24Portugalvalid172026-10-02
195.40.50.0/24Portugalvalid172026-10-02
195.40.51.0/24Portugalvalid172026-10-02
195.40.52.0/24Portugalvalid172026-10-02
195.40.53.0/24Portugalvalid172026-10-02
195.40.54.0/24Portugalvalid172026-10-02
195.40.55.0/24Portugalvalid172026-10-02

IPv6 prefixes

Every IPv6 prefix BGP Route saw it announce.

1 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
2a10:d580::/29United Kingdomvalid202026-10-02
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