AS51100 Kier Ltd 🇬🇧 GB

Announcing 7 prefixes, seen at the RIS collectors.

IPv4 prefixes

2,560 (10 × /24)

IPv6 prefixes

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS51100
Name: Kier Ltd
Organisation: Kier Ltd
Country: 🇬🇧 GB
RIR: RIPENCC
Allocated: 2018-01-04

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 7 no ROA (100.0%)

Whois

Fetched from whois.ripe.net

as-block:       AS50893 - AS51311
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:        2024-12-10T14:54:30Z
last-modified:  2024-12-10T14:54:30Z
source:         RIPE

aut-num:        AS51100
as-name:        Kier
org:            ORG-KL233-RIPE
import:         from AS1273 accept ANY
export:         to AS1273 announce AS51100
admin-c:        AA43437-RIPE
tech-c:         TA9096-RIPE
abuse-c:        AR44377-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         uk-kierltd-1-mnt
created:        2018-01-04T15:31:34Z
last-modified:  2024-06-25T16:17:07Z
source:         RIPE # Filtered

organisation:   ORG-KL233-RIPE
org-name:       Kier Ltd
country:        GB
reg-nr:         01611136
org-type:       LIR
address:        2nd Floor, Optimum House, Clippers Quay
address:        M50 3XP
address:        Salford
address:        UNITED KINGDOM
phone:          +44 0161 656 9400
admin-c:        AA43437-RIPE
tech-c:         TA9096-RIPE
abuse-c:        AR44377-RIPE
mnt-ref:        uk-kierltd-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         uk-kierltd-1-mnt
created:        2017-12-20T08:15:32Z
last-modified:  2026-05-13T07:09:46Z
source:         RIPE # Filtered

role:           Admin-C
address:        2nd Floor, Optimum House
address:        Clippers Quay
address:        Salford
address:        M50 3XP
address:        England, UK
org:            ORG-KL233-RIPE
tech-c:         TA9096-RIPE
nic-hdl:        AA43437-RIPE
mnt-by:         uk-kierltd-1-mnt
created:        2024-06-25T16:03:11Z
last-modified:  2024-06-25T16:12:40Z
source:         RIPE # Filtered

role:           Tech-C
address:        2nd Floor, Optimum House
address:        Clippers Quay
address:        Salford
address:        M50 3XP
address:        England, UK
org:            ORG-KL233-RIPE
admin-c:        AA43437-RIPE
nic-hdl:        TA9096-RIPE
mnt-by:         uk-kierltd-1-mnt
created:        2024-06-25T16:05:31Z
last-modified:  2024-06-25T16:13:26Z
source:         RIPE # Filtered