AS41230 ASK4 Limited 🇬🇧 GB

Announcing 23 prefixes, seen at the RIS collectors.

IPv4 prefixes

122,112 (477 × /24)

IPv6 prefixes

56 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS41230
Name: ASK4 Limited
Organisation: ASK4 Ltd
Country: 🇬🇧 GB
RIR: RIPENCC
Allocated: 2006-07-05
Network type: NSP
Scope: Europe
Peering policy: Selective
IRR as-set: AS-ASK4
Website: https://www.ask4.com/
PeeringDB: net/1756
Exchanges: 6
Facilities: 8

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

23 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Whois

Fetched from whois.ripe.net

as-block:       AS40960 - AS42171
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2024-07-22T14:14:32Z
last-modified:  2024-07-22T14:14:32Z
source:         RIPE

aut-num:        AS41230
as-name:        ASK4
org:            ORG-AL47-RIPE
remarks:        ===========================================================
remarks:        ASK4's Peering Policy can be found at
remarks:        https://www.ask4.com/peering
remarks:        ===========================================================
import:         from AS-ANY accept ANY
export:         to AS-ANY announce AS-ASK4
mp-import:      afi ipv6.unicast from AS-ANY accept ANY
mp-export:      afi ipv6.unicast to AS-ANY announce AS-ASK4
admin-c:        ASKF-RIPE
tech-c:         ASKF-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-ASK4
created:        2006-07-05T11:20:30Z
last-modified:  2024-03-07T11:53:58Z
source:         RIPE # Filtered

organisation:   ORG-AL47-RIPE
org-name:       ASK4 Limited
country:        GB
reg-nr:         03980594
org-type:       LIR
address:        Devonshire Green House
                14 Fitzwilliam Street
address:        S1 4JL
address:        SHEFFIELD
address:        UNITED KINGDOM
phone:          +441143033200
admin-c:        ASKF-RIPE
abuse-c:        ASKF2-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-ASK4
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-ASK4
created:        2006-01-19T06:11:23Z
last-modified:  2026-05-13T07:29:56Z
source:         RIPE # Filtered

role:           ASK4 Network Infrastructure Team
address:        Devonshire Green House
address:        14 Fitzwilliam Street
address:        Sheffield
address:        S1 4JL
admin-c:        CB19473-RIPE
tech-c:         CB19473-RIPE
nic-hdl:        ASKF-RIPE
mnt-by:         MNT-ASK4
created:        2011-04-15T12:53:32Z
last-modified:  2026-02-04T10:52:56Z
source:         RIPE # Filtered