COLT TECHNOLOGY SERVICES GROUP LIMITED

COLT Technology Services Group Limited
Data as of 2026-08-09
GLEIF verified
Complete entity footprint
2 linked clusters · 5,015 netblocks · 38,057,554 IPv4 addresses · 297 IPv6 prefixes
This organisation's clusters combined by evidence — shared operating domain colt.net — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
213800PIMH7Q7M27DB82
Registered name
COLT TECHNOLOGY SERVICES GROUP LIMITED
Jurisdiction
GB
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks456 · 1,701,138 IPv4 addresses
IPv6 38 prefixes (largest 2001:920::/29)
Registered in United Kingdom (225) · Germany (86) · United States (31) · Japan (30) · Poland (20) · France (15)
Cluster ID217813585
RegistryAPNIC
Owner jurisdictionGB
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 213800PIMH7Q7M27DB82
Shared handles clustered on 100 shared RIR contact/maintainer handles
Registry names 24 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

7 weekly snapshots · JSON
518 +185 netblocks since 2026-07-05
2026-07-05 peak 518 2026-08-09

IP Ranges (456)

showing 50 of 456 — see all — ⬇ export CSV
CIDR Org name Registry Status Confidence
103.158.226.0/23 Colt Technology Services India Pvt Ltd APNIC ASSIGNED PORTABLE ● high
103.158.226.0/24 Colt Technology Services India Pvt Ltd BGP ANNOUNCED ● high
103.158.227.0/24 Colt Technology Services India Pvt Ltd BGP ANNOUNCED ● high
193.118.162.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● high
193.118.164.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● high
193.118.168.0/24 Colt Technology Services India Pvt Ltd BGP ANNOUNCED ● high
195.12.230.12/30 Colt Technology RIPE ASSIGNED PA ● high
195.12.230.184/30 Colt Technology RIPE ASSIGNED PA ● high
217.111.164.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● high
217.111.165.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● high
217.111.166.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● high
217.111.167.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● high
5.11.96.0/20 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
5.182.152.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
27.110.0.0/20 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
27.110.16.0/22 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
27.110.20.0/23 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
38.210.238.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
45.129.69.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
45.135.160.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
46.28.184.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
46.28.212.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
46.248.14.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
46.248.128.0/19 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
57.133.0.0/16 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
58.0.0.0/16 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
58.1.128.0/17 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.23.0.0/16 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.23.14.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.23.23.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.23.43.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.23.61.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.23.70.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.23.254.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.23.255.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.72.96.0/19 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.84.192.0/19 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.85.160.0/19 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.96.0.0/16 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.97.64.0/18 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.152.96.0/19 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.182.250.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
62.192.0.0/19 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
65.87.8.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
66.92.200.0/24 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
77.74.158.0/23 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
78.143.0.0/18 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
78.156.64.0/20 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
78.156.80.0/21 COLT Technology Services Group Limited BGP ANNOUNCED ● medium
80.80.0.0/19 COLT Technology Services Group Limited BGP ANNOUNCED ● medium

IPv6 ranges (38)

showing the 15 largest allocations
CIDR
2001:920::/29
2a0c:87c0::/29
2001:920::/32
2001:921::/32
2001:924::/32
2001:925::/32
2001:926::/32
2400:81e0::/32
2406:6e40::/32
2a07:cb81::/32
2a10:8802::/36
2001:678:1020::/48
2001:678:274::/48
2001:678:868::/48
2001:67c:2b20::/48

Domains hosted in this network

what's this?
made-in-china.com popin.cc bdjp.io trovit.com simeji.me allianz-assistance.com avm.de kiwa.com tgo.fr decineon.com think-cell.com thribee.com scansoft.com mitula.com meat-doria.com cnmv.es artis-asp.jp aok.de mitula.my miogest.com

Network trust

what's this?
RPKI hygiene: C how networks compare →
79.0% of checked blocks have valid RPKI ROA coverage (409 of 518)
Possible discrepancies (13)

These blocks are registered to COLT Technology Services Group Limited but cryptographically authorized for a different, unrelated network (4 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2003:105:b81b::/48 /48 authorized for AS3320 — Deutsche Telekom AG
2003:fd:9815::/48 /48 authorized for AS3320 — Deutsche Telekom AG
2003:c7:e02d::/48 /48 authorized for AS3320 — Deutsche Telekom AG
2003:e1:b826::/48 /48 authorized for AS3320 — Deutsche Telekom AG
2003:cd:826::/48 /48 authorized for AS3320 — Deutsche Telekom AG
2003:108:9817::/48 /48 authorized for AS3320 — Deutsche Telekom AG
154.16.166.0/24 /24 authorized for AS834 — IPXO LLC
185.247.126.0/24 /24 authorized for AS212377 — Direccion General de la Guardia Civil
194.33.183.0/24 /24 authorized for AS2830 — Verizon Nederland B.V.
45.135.160.0/24 /24 authorized for AS834 — IPXO LLC
65.87.8.0/24 /24 authorized for AS834 — IPXO LLC
181.41.193.0/24 /24 authorized for AS834 — IPXO LLC
202.134.253.0/24 /24 authorized for AS834 — IPXO LLC

NIC Handles

AA AB34802-RIPE AC2221-AP AC2582-AP AC2677-AP ALL-MNT ALPHALINK-MNT AP708-AP APNIC-HM ARCOR-MNT ARTFILES-MNT AS12640-MNT +88 more