UDomain Web Hosting Company Limited
UDOMAIN-HK
Data as of 2026-07-26
BGP inherited
Cluster stats
| Netblocks | 44 · 10,528 IPv4 addresses |
| IPv6 | 2 prefixes (largest 2400:c300:1::/48) |
| Cluster ID | 213240229 |
| Registry | APNIC |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 16 shared RIR contact/maintainer handles |
| Registry names | 1 distinct registrant name across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
6 weekly snapshots · JSON
44
0 netblocks since 2026-07-05
2026-07-05
peak 44
2026-07-26
IP Ranges (44)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 23.226.0.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 23.226.13.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 23.226.14.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.192.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.193.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.194.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.195.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.196.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.197.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.198.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.199.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.200.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.201.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.202.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 45.121.203.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.180.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.181.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.182.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.183.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.192.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.193.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.194.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.195.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.196.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.197.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.198.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.15.199.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.19.24.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.19.25.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.19.26.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 103.19.27.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 203.90.224.0/24 | UDOMAIN-HK | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 203.90.225.0/24 | UDOMAIN-HK | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 203.90.226.0/24 | UDOMAIN-HK | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 203.90.227.0/24 | UDOMAIN-HK | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 203.90.228.0/24 | UDOMAIN-HK | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 203.90.229.0/24 | UDOMAIN-HK | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 203.90.230.0/24 | UDOMAIN-HK | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 203.90.252.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 203.90.253.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 203.90.254.0/24 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 210.245.161.64/27 | UDOMAIN-HK | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 2400:c300::/48 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
| 2400:c300:1::/48 | UDOMAIN-HK | APNIC | ALLOCATED NON-PORTABLE | ● low |
IPv6 ranges (2)
Network trust
what's this?
RPKI hygiene: A
how networks compare →
95.5%
of checked blocks have valid RPKI ROA coverage
(42 of 44)
Possible discrepancies (4)
These blocks are registered to UDOMAIN-HK but cryptographically authorized for a different, unrelated network (3 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 203.90.253.0/24 /24 | authorized for AS150342 — Airstar Bank Limited |
| 103.15.193.0/24 /24 | authorized for AS60068 — Datacamp Limited |
| 45.121.202.0/24 /24 | authorized for AS60068 — Datacamp Limited |
| 103.15.182.0/24 /24 | authorized for AS46844 — Sharktech |
NIC Handles
AH1343-AP
AU302-AP
AU303-AP
AU97-AP
MAINT-HK-HKBNESL
MAINT-HK-UDOMAIN
MAINT-HK-WEBHOST
MAINT-NEWSKY-AP
MH1716-AP
NA724-AP
NA724-AP
NA725-AP
+4 more