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AS15404 Technology Services Group Limited

United Kingdom UNSPECIFIED RIPE 147 IPv4 prefixes 10 IPv6 prefixes
IPv4 addresses
143,104
IPv6 /48 networks
69,640
RPKI
104 valid53 no ROA
Peers and downstreams
0

Holder

AS name
UNSPECIFIED
Description
Technology Services Group Limited
Organisation
COLT Technology Services Group Limited
Registered in
London, United Kingdom
Abuse contact
abuse@colt.net
Assigned
2000-06-20
Registered
1970-01-01
Record last changed
2019-11-05 14:32 UTC
109.107.145.0/24129.35.17.0/24129.35.20.0/23129.35.85.0/24139.138.235.0/24141.98.45.0/24148.188.0.0/20148.188.192.0/20148.188.224.0/22148.188.232.0/21155.137.0.0/24155.137.1.0/24155.137.2.0/24155.137.3.0/24155.137.7.0/24156.118.0.0/24156.118.6.0/24156.118.8.0/24157.239.128.0/24157.239.129.0/24158.156.155.0/24158.156.162.0/24158.156.172.0/24158.156.182.0/24158.156.193.0/24161.17.0.0/16161.17.0.0/24163.199.254.0/24170.200.251.0/24170.200.252.0/24170.200.253.0/24170.248.142.0/24170.251.108.0/24170.252.84.0/24170.252.85.0/24170.252.86.0/24176.119.201.0/24178.249.200.0/21185.13.62.0/24185.134.140.0/24185.140.104.0/24185.154.148.0/23185.199.204.0/24185.203.232.0/24185.212.156.0/22185.213.216.0/24185.213.217.0/24185.218.120.0/24185.218.121.0/24185.218.122.0/24185.218.123.0/24185.226.224.0/24185.234.136.0/24185.60.76.0/23185.60.79.0/24188.64.17.0/24188.64.18.0/24188.64.19.0/24192.109.222.0/24192.166.107.0/24192.228.1.0/24192.228.2.0/24192.228.3.0/24192.232.64.0/24192.232.66.0/24192.31.22.0/24192.76.161.0/24193.102.174.0/24193.102.79.0/24193.103.129.0/24193.135.254.0/24193.164.14.0/24193.176.112.0/23193.176.114.0/23193.177.180.0/23193.200.191.0/24193.26.246.0/24193.26.247.0/24193.26.248.0/24193.26.249.0/24193.26.250.0/24193.26.251.0/24193.26.252.0/24193.26.253.0/24193.26.254.0/24193.26.255.0/24193.28.71.0/24193.29.144.0/20193.29.146.0/23193.29.150.0/23193.29.152.0/22193.29.156.0/23193.29.159.0/24193.38.200.0/24193.46.62.0/24193.47.140.0/24193.53.174.0/24193.53.185.0/24193.53.186.0/24193.53.188.0/24193.53.190.0/24193.56.33.0/24193.57.56.0/24193.58.6.0/24193.73.113.0/24193.8.64.0/22194.11.129.0/24194.117.239.0/24194.126.242.0/24194.15.16.0/24194.15.18.0/24194.15.242.0/23194.15.244.0/22194.173.47.0/24194.33.183.0/24194.39.220.0/24194.59.121.0/24194.59.137.0/24194.59.139.0/24194.59.96.0/19194.76.8.0/24194.76.9.0/24194.99.12.0/24194.99.120.0/21195.182.60.0/24195.234.175.0/24195.47.207.0/24202.246.252.0/24202.252.108.0/23213.163.237.0/2445.129.69.0/2446.28.212.0/245.11.96.0/2051.64.34.0/2451.64.35.0/2462.182.250.0/2462.85.160.0/1977.74.158.0/2385.208.193.0/2491.209.87.0/2491.212.245.0/2491.213.110.0/2491.213.65.0/2491.213.68.0/2491.213.91.0/2491.238.4.0/2491.244.125.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths
AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS24482 SG.GS AS24482 · SG SG.GS AS35280 F5 Networks SARL AS35280 · FR F5 Networks SARL AS3356 Level 3 Parent, LLC AS3356 · US Level 3 Parent, LLC AS8220 COLT Technology Services Group Limited AS8220 · GB COLT Technology Servi… AS15404 Technology Services Group Limited AS15404 · GB Technology Services G…

Network health

Grade B · 82/100
partly Prefixes covered by valid ROAs
104 of 157 announced prefixes are RPKI valid, 53 have no ROA.		 17/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
pass Announces IPv6
10 IPv6 prefixes.		 15/15
partly More than one upstream
1 upstream seen in BGP.		 5/10
pass Working abuse contact
abuse@colt.net is published.		 15/15
pass Publishes a geofeed
A geofeed (RFC 8805) tells where the address space is used.		 10/10
pass No prefixes smaller than /24 or /48
All prefixes are /24 (IPv4) or /48 (IPv6) or larger.		 10/10
fail Registry record maintained
Last changed 2019-11-05.		 0/5
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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AS15404 health AS15404 RPKI
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Routing changes

Last 30 days
2026-10-04 15:56 UTCNeighbour gone AS136049 upstream
2026-10-04 15:56 UTCPrefix gone 103.80.221.0/24
2026-10-04 15:56 UTCPrefix gone 103.80.220.0/24
2026-10-04 15:56 UTCNew prefix 2a10:4780:8261::/48

WHOIS

aut-num:        AS15404
as-name:        UNSPECIFIED
org:            ORG-CI9-RIPE
admin-c:        COLT1-RIPE
tech-c:         COLT1-RIPE
remarks:        COLT Internet SE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         COLT-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2019-11-05T14:32:24Z
source:         RIPE
% 2 routing policy lines (import/export) not shown