Clark Holdings, LLC
Clark Communications
Data as of 2026-10-18
GLEIF verified
LEI
549300W82P8R3O4E2Y30
Registered name
Clark Holdings, LLC
Jurisdiction
Ultimate parent
No parent on file in GLEIF
This organisation
| Netblocks | 5 · 804 IPv4 addresses |
| IPv6 | 1 prefix (largest 2400:f420::/32) |
| Registered in | United Kingdom (1) · Portugal (1) · Taiwan (1) · United States (1) |
| Also registered under this name | 92 netblocks across 25 separate records |
| Record ID | 250436121 |
| Registry | APNIC |
| Owner jurisdiction | US-PA |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 549300W82P8R3O4E2Y30 |
| Shared handles | clustered on 12 shared RIR contact/maintainer handles |
| Registry names | 4 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (5)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 198.17.128.0/24 | Clark Communications | ARIN | DIRECT ALLOCATION | ● high |
| 103.130.236.0/23 | CLARK | APNIC | ALLOCATED PORTABLE | ● medium |
| 2400:f420::/32 | CLARK | APNIC | ALLOCATED PORTABLE | ● medium |
| 89.145.226.192/27 | CLARK-NET | RIPE | ASSIGNED PA | ● low |
| 195.23.168.168/30 | CLARK | RIPE | ASSIGNED PA | ● low |
IPv6 ranges (1)
| CIDR |
|---|
| 2400:f420::/32 |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
80.0%
of checked blocks have valid RPKI ROA coverage
(4 of 5)
No discrepancies found among checked blocks.
NIC Handles
AS5413-MNT
AT939-AP
CC3354-AP
CC3354-AP
CLARKC-1
DJ176-ARIN
DJ176-ARIN
DJ176-ARIN
DUMY-RIPE
DUMY-RIPE
IP-MNT
MAINT-TW-TWNIC