Network

AS41230

United KingdomEyeball

ASK4 Limited

ASK4 announces 16 IPv4 prefixes (88.3K addresses) and 7 IPv6 prefixes from the United Kingdom. 100% of them are covered by valid RPKI records.

Prefixes

16 · 7

IPv4 · IPv6

Address space

88.3K

IPv4 addresses · 3.7M IPv6 /48s

RPKI

100% valid

0 invalid · 0 without a record

Peering

Selective

6 exchanges · 8 facilities

Where it is

7 facilities with known locations (of 8)

Details

Network

Name
ASK4 Limited
Holder
MNT-ASK4
Type
NSP
Country
United KingdomUnited Kingdom
Registry
RIPE NCC
Registered
Jul 5, 200620 years ago
Website
ask4.com
UsersCloudflare Radar's estimate of people who reach the internet through this network.
About 61.6K
Abuse contact
abuse@ask4.com

Connectivity

Cloudflare Radar
UpstreamsNetworks this one buys transit from.
ArelionNTT Global IP Network
PeersNetworks it exchanges traffic with directly, without paying either way.
89
CustomersNetworks that buy transit from it.
4
AS-SETThe routing registry object that lists this network's customers, used to build route filters.
AS-ASK4

Routing security

ASPAAn RPKI record listing the only networks allowed to be its upstream providers, so routers can reject leaked or forged paths.
Not published
RPKI coverageShare of its announcements that a signed record (ROA) authorizes.
23 of 23 valid
IncidentsPossible BGP hijacks (high-confidence detections) and route leaks involving this network in the last 30 days, from Cloudflare Radar.
None in 30 days

AS41230 on Cloudflare Radar →PeeringDB →

Largest prefixes

23 announcements in all

Internet exchanges

Largest 5 of 6, by port speed

  1. LINX LON1United KingdomLondon100 Gbps
  2. LONAPUnited KingdomLondon100 Gbps
  3. LINX ManchesterUnited KingdomManchester30 Gbps
  4. IXLeedsUnited KingdomLeeds / Western Yorkshire10 Gbps
  5. MegaIX DusseldorfGermanyDusseldorf10 Gbps