AS8220 COLT Technology Services Group Limited

United Kingdom COLT RIPE 155 IPv4 prefixes 19 IPv6 prefixes
IPv4 addresses
1,497,088
IPv6 /48 networks
393,228
RPKI
159 valid15 no ROA
Peers and downstreams
1972

Holder

AS name
COLT
Description
COLT Technology Services Group Limited
Organisation
COLT Technology Services Group Limited
Registered in
London, United Kingdom
Abuse contact
abuse@colt.net
Assigned
1997-02-23
Registered
2002-08-29
Record last changed
2026-06-22 07:52 UTC
103.138.100.0/22103.248.76.0/24110.50.78.0/23116.83.0.0/17118.67.224.0/19134.128.168.0/22136.225.0.0/16145.224.32.0/23148.109.0.0/16148.109.25.0/24153.96.140.0/24153.96.141.0/24154.16.166.0/24155.45.128.0/24157.120.224.0/21157.120.236.0/22157.120.240.0/20157.2.32.0/19157.2.48.0/21157.2.52.0/24158.162.192.0/18158.162.32.0/19173.247.225.0/24178.159.176.0/20181.41.193.0/24182.54.238.0/24185.138.136.0/22185.157.227.0/24185.194.232.0/23192.103.52.0/24192.187.137.0/24192.231.17.0/24192.51.54.0/24193.102.132.0/24193.111.24.0/23193.118.224.0/19193.134.159.0/24193.141.139.0/24193.16.155.0/24193.16.48.0/21193.16.56.0/22193.16.60.0/23193.16.62.0/24193.17.178.0/24193.183.185.0/24193.228.0.0/24193.235.44.0/24193.235.45.0/24193.30.84.0/24193.33.182.0/23193.36.242.0/24193.82.0.0/19193.82.32.0/19193.96.108.0/23193.98.156.0/24194.0.195.0/24194.113.246.0/24194.115.212.0/22194.127.228.0/24194.223.128.0/21194.223.136.0/22194.223.140.0/22194.223.144.0/20194.36.128.0/24194.76.2.0/23194.76.4.0/22195.110.64.0/19195.20.223.0/24195.234.180.0/24195.68.0.0/17195.68.74.0/24195.78.50.0/23202.134.253.0/24202.24.96.0/23202.24.98.0/23202.255.101.0/24202.255.102.0/24202.7.104.0/24202.95.218.0/23208.85.76.0/24212.0.96.0/19212.121.128.0/19212.123.192.0/18212.161.0.0/17212.203.64.0/18212.23.224.0/19212.31.224.0/19212.35.96.0/19212.36.144.0/20212.36.160.0/20212.36.184.0/21212.36.32.0/19212.74.77.0/24212.74.78.0/24212.74.79.0/24212.78.160.0/19213.164.0.0/19213.173.160.0/19213.185.160.0/19213.208.192.0/18213.215.128.0/17213.229.128.0/18213.246.192.0/18213.27.128.0/17213.41.0.0/17213.61.0.0/16213.86.0.0/16217.110.0.0/15217.173.96.0/2027.110.0.0/2027.110.16.0/2227.110.20.0/2338.210.238.0/2445.135.160.0/2446.248.128.0/1946.248.14.0/2446.28.184.0/2457.133.0.0/1658.0.0.0/1658.1.128.0/1762.152.96.0/1962.192.0.0/1962.23.0.0/1662.23.14.0/2462.23.23.0/2462.23.254.0/2462.23.255.0/2462.23.43.0/2462.23.61.0/2462.23.70.0/2462.72.96.0/1962.84.192.0/1962.96.0.0/1662.97.64.0/1865.87.8.0/2478.143.0.0/1878.156.64.0/2078.156.80.0/2180.169.0.0/1680.251.160.0/1980.80.0.0/1982.112.192.0/1984.14.0.0/1684.14.217.0/2484.14.63.0/2484.16.160.0/1985.88.128.0/1987.241.0.0/1890.152.0.0/1890.152.64.0/1890.152.64.0/1990.152.96.0/1991.212.43.0/2495.175.192.0/2095.175.208.0/20

Routing changes

Last 30 days
2026-10-04 03:53 UTCNeighbour gone AS213044 peer
2026-10-04 03:53 UTCNeighbour gone AS210874 downstream
2026-10-04 03:53 UTCNeighbour gone AS207290 peer
2026-10-04 03:53 UTCNeighbour gone AS207230 peer
2026-10-04 03:53 UTCNeighbour gone AS205493 peer
2026-10-04 03:53 UTCNeighbour gone AS203592 peer
2026-10-04 03:53 UTCNeighbour gone AS199441 peer
2026-10-04 03:53 UTCNeighbour gone AS135607 downstream
2026-10-04 03:53 UTCNeighbour gone AS62194 peer
2026-10-04 03:53 UTCNeighbour gone AS62017 peer
2026-10-04 03:53 UTCNeighbour gone AS60719 peer
2026-10-04 03:53 UTCNeighbour gone AS58299 upstream
2026-10-04 03:53 UTCNeighbour gone AS48173 downstream
2026-10-04 03:53 UTCNeighbour gone AS48152 peer
2026-10-04 03:53 UTCNeighbour gone AS44066 downstream
2026-10-04 03:53 UTCNeighbour gone AS43365 peer
2026-10-04 03:53 UTCNeighbour gone AS41728 peer
2026-10-04 03:53 UTCNeighbour gone AS39202 downstream
2026-10-04 03:53 UTCNeighbour gone AS37002 downstream
2026-10-04 03:53 UTCNeighbour gone AS29308 peer
2026-10-04 03:53 UTCNeighbour gone AS28952 downstream
2026-10-04 03:53 UTCNeighbour gone AS21296 peer
2026-10-04 03:53 UTCNeighbour gone AS17060 peer
2026-10-04 03:53 UTCNeighbour gone AS12897 downstream
2026-10-04 03:53 UTCNeighbour gone AS12322 downstream
2026-10-04 03:53 UTCNeighbour gone AS9085 downstream
2026-10-04 03:53 UTCNeighbour gone AS8368 downstream
2026-10-04 03:53 UTCNeighbour gone AS6661 downstream
2026-10-04 03:53 UTCNeighbour gone AS5606 downstream
2026-10-04 03:53 UTCNeighbour gone AS4134 downstream
2026-10-04 03:53 UTCNew neighbour AS9299 downstream
2026-10-04 03:53 UTCNew neighbour AS6456 downstream
2026-10-04 03:53 UTCNew neighbour AS60068 downstream
2026-10-04 03:53 UTCNew neighbour AS58511 downstream
2026-10-04 03:53 UTCNew neighbour AS49158 downstream
2026-10-04 03:53 UTCNew neighbour AS4150 downstream
2026-10-04 03:53 UTCNew neighbour AS36001 downstream
2026-10-04 03:53 UTCNew neighbour AS34191 peer
2026-10-04 03:53 UTCNew neighbour AS32050 peer
2026-10-04 03:53 UTCNew neighbour AS31637 peer
2026-10-04 03:53 UTCNew neighbour AS31529 downstream
2026-10-04 03:53 UTCNew neighbour AS27381 peer
2026-10-04 03:53 UTCNew neighbour AS26804 downstream
2026-10-04 03:53 UTCNew neighbour AS21351 downstream
2026-10-04 03:53 UTCNew neighbour AS212320 peer
2026-10-04 03:53 UTCNew neighbour AS20681 peer
2026-10-04 03:53 UTCNew neighbour AS204439 peer
2026-10-04 03:53 UTCNew neighbour AS201441 peer
2026-10-04 03:53 UTCNew neighbour AS201228 downstream
2026-10-04 03:53 UTCNew neighbour AS201177 peer
2026-10-04 03:53 UTCNew neighbour AS15547 peer
2026-10-04 03:53 UTCNew neighbour AS154090 peer
2026-10-04 03:53 UTCNew neighbour AS13807 downstream
2026-10-04 03:53 UTCNew neighbour AS137518 peer
2026-10-04 03:53 UTCNew neighbour AS136049 peer
2026-10-04 03:53 UTCNew neighbour AS11158 peer
2026-10-04 03:53 UTCRelationship changed AS9044 upstream to peer
2026-10-04 03:53 UTCRelationship changed AS64073 upstream to peer
2026-10-04 03:53 UTCRelationship changed AS6204 upstream to peer
2026-10-04 03:53 UTCRelationship changed AS6057 upstream to peer
2026-10-04 03:53 UTCRelationship changed AS5405 upstream to downstream
2026-10-04 03:53 UTCRelationship changed AS50629 upstream to downstream
2026-10-04 03:53 UTCRelationship changed AS49835 upstream to peer
2026-10-04 03:53 UTCRelationship changed AS4635 upstream to peer
2026-10-04 03:53 UTCRelationship changed AS39801 upstream to peer
2026-10-04 03:53 UTCRelationship changed AS29208 upstream to peer
2026-10-04 03:53 UTCRelationship changed AS2914 upstream to peer
2026-10-04 03:53 UTCRelationship changed AS2764 upstream to peer
2026-10-04 03:53 UTCNew neighbour AS262761 peer
2026-10-04 03:53 UTCRelationship changed AS24961 upstream to downstream
2026-10-04 03:53 UTCNew neighbour AS215638 peer
2026-10-04 03:53 UTCRelationship changed AS1273 upstream to peer

WHOIS

aut-num:        AS8220
as-name:        COLT
descr:          COLT Technology Services Group Limited
org:            ORG-CI9-RIPE
remarks:        =============================================
remarks:        BGP Communities accepted from customers
remarks:        =============================================
remarks:        -
remarks:        see http://as8220.net/communities.php
remarks:        -
remarks:        =============================================
remarks:        Import/Export - Peers
remarks:        =============================================
remarks:        -
remarks:        -
remarks:        =============================================
remarks:        Import/Export - Upstreams
remarks:        =============================================
remarks:        -
remarks:        --- EU ---
remarks:        --- Telia Carrier ---
remarks:        --- Level 3 AS 3356 ---
remarks:        -
remarks:        --- NA ---
remarks:        --- Telia Carrier ---
remarks:        -
remarks:        --- APAC ---
remarks:        --- PCCW ---
remarks:        --- Tata Communications ---
remarks:        -
remarks:        --- OCEANIA ---
remarks:        --- Vocus ---
remarks:        -
remarks:        =============================================
remarks:        Import/Export - Customers
remarks:        =============================================
remarks:        -
remarks:        -
remarks:        =============================================
remarks:        Peering Policy
remarks:        =============================================
remarks:        -
remarks:        Our general peering policy is selective:
remarks:        -
remarks:        * Multiple city locations required.
remarks:        * Significant aggregated exchange traffic.
remarks:        * No peering with customers of existing peers.
remarks:        * No peering with existing or past customers.
remarks:        * PeeringDB.com record required.
remarks:        -
remarks:        For peering requests or queries please
remarks:        contact peering@colt.net
remarks:        =============================================
admin-c:        COLT1-RIPE
tech-c:         COLT1-RIPE
status:         ASSIGNED
mnt-by:         COLT-MNT
mnt-by:         RIPE-NCC-END-MNT
created:        2002-08-29T14:10:36Z
last-modified:  2026-06-22T07:52:33Z
source:         RIPE
% 4100 routing policy lines (import/export) not shown