CST GROUP LIMITED

"C.S.T". Ltd.
Data as of 2026-07-26
GLEIF verified
Complete entity footprint
2 linked clusters · 23 netblocks · 10,600 IPv4 addresses · 2 IPv6 prefixes
This organisation's clusters combined by evidence — shared GLEIF corporate family — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
2138006VAWTJT57PQ586
Registered name
CST GROUP LIMITED
Jurisdiction
HK
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks15 · 9,984 IPv4 addresses
IPv6 1 prefix (largest 2a00:db20::/32)
Cluster ID213408237
RegistryBGP
Owner jurisdictionHK
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 2138006VAWTJT57PQ586
Shared handles clustered on 9 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
20 0 netblocks since 2026-07-05
2026-07-05 peak 20 2026-07-26

IP Ranges (15)

⬇ export CSV
CIDR Org name Registry Status Confidence
31.24.87.0/24 "C.S.T". Ltd. BGP ANNOUNCED ● high
80.87.144.0/20 "C.S.T". Ltd. BGP ANNOUNCED ● high
91.195.16.0/23 "C.S.T". Ltd. BGP ANNOUNCED ● high
91.197.160.0/22 "C.S.T". Ltd. BGP ANNOUNCED ● high
185.18.90.0/24 "C.S.T". Ltd. BGP ANNOUNCED ● high
185.35.116.0/22 "C.S.T". Ltd. BGP ANNOUNCED ● high
185.124.64.0/24 "C.S.T". Ltd. BGP ANNOUNCED ● high
2a00:db20::/32 "C.S.T". Ltd. BGP ANNOUNCED ● high
80.87.144.0/21 "C.S.T". Ltd. RIPE ASSIGNED PA ● medium
80.87.152.0/21 "C.S.T". Ltd. RIPE ASSIGNED PA ● medium
185.35.116.0/23 "C.S.T". Ltd. RIPE ASSIGNED PA ● medium
185.35.118.0/23 "C.S.T". Ltd. RIPE ASSIGNED PA ● medium
185.18.88.0 – 185.18.90.255 "C.S.T". Ltd. RIPE ALLOCATED PA ● low
185.75.180.0/22 "C.S.T". Ltd. RIPE ALLOCATED PA ● low
185.186.192.0/22 "C.S.T". Ltd. RIPE ALLOCATED PA ● low

IPv6 ranges (1)

CIDR
2a00:db20::/32

Corporate group (2 confirmed entities)

Network trust

what's this?
RPKI hygiene: B how networks compare →
85.0% of checked blocks have valid RPKI ROA coverage (17 of 20)
Possible discrepancies (2)

These blocks are registered to "C.S.T". Ltd. but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

31.24.87.0/24 /24 authorized for AS57456 — Intek-Mytischi LLC
185.124.64.0/24 /24 authorized for AS57456 — Intek-Mytischi LLC

NIC Handles

AS62429 CSTNET-MNT CSTNET-MNT DUMY-RIPE DUMY-RIPE NA-MNT ORG-ONTL1-RIPE RIPE-NCC-END-MNT RIPE-NCC-HM-MNT