Justin Harth
BGP inherited
Cluster stats
| Netblocks | 23 |
| All fragments | 109 blocks across 59 clusters |
| Cluster ID | 204403876 |
| Registry | APNIC |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 24 shared RIR contact/maintainer handles |
| Registry names | 5 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
4 weekly snapshots · JSON
23
+4 netblocks since 2026-07-05
2026-07-05
peak 23
2026-07-13
IP Ranges (23)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 2.56.247.0/24 | Justin Harth | BGP | ANNOUNCED | ● high |
| 5.175.164.0/24 | Justin Harth | BGP | ANNOUNCED | ● high |
| 5.175.164.0/24 | Justin Harth trading as NexoSystems IT-Solutions | RIPE | ASSIGNED PA | ● high |
| 5.175.179.0/24 | Justin Harth | BGP | ANNOUNCED | ● high |
| 5.175.245.0/24 | Justin Harth trading as NexoSystems IT-Solutions | RIPE | ASSIGNED PA | ● high |
| 5.175.245.0/24 | Justin Harth | BGP | ANNOUNCED | ● high |
| 5.231.31.0/24 | Justin Harth | BGP | ANNOUNCED | ● high |
| 45.142.104.0/24 | Justin Harth | BGP | ANNOUNCED | ● high |
| 2a09:3f00:3100::/48 | Justin Harth | BGP | ANNOUNCED | ● high |
| 2a09:3f00:3101::/48 | Justin Harth | BGP | ANNOUNCED | ● high |
| 2a09:3f00:3102::/48 | Justin Harth | BGP | ANNOUNCED | ● high |
| 2a09:3f00:3103::/48 | Justin Harth | BGP | ANNOUNCED | ● high |
| 2a14:7c0:1300::/40 | Justin Harth | BGP | ANNOUNCED | ● high |
| 2.56.247.0/24 | Justin Harth | RIPE | SUB-ALLOCATED PA | ● low |
| 45.142.104.0/24 | Justin Harth | RIPE | SUB-ALLOCATED PA | ● low |
| 113.28.248.16/29 | JUSTIN-HK | APNIC | ASSIGNED NON-PORTABLE | ● low |
| 2a00:2381:c6a4::/48 | JUSTIN-M | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a09:3f00:3100::/40 | Justin Harth | RIPE | ALLOCATED-BY-LIR | ● low |
| 2a09:3f00:3100::/48 | Justin Harth | RIPE | ALLOCATED-BY-LIR | ● low |
| 2a09:3f00:3101::/48 | Justin Harth | RIPE | ALLOCATED-BY-LIR | ● low |
| 2a09:3f00:3102::/48 | Justin Harth | RIPE | ALLOCATED-BY-LIR | ● low |
| 2a09:3f00:3103::/48 | Justin Harth | RIPE | ALLOCATED-BY-LIR | ● low |
| 2a14:7c0:1300::/40 | Justin Harth | RIPE | ALLOCATED-BY-LIR | ● low |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
91.3%
of checked blocks have valid RPKI ROA coverage
(21 of 23)
Possible discrepancies (6)
These blocks are registered to Justin Harth 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.
| 2a00:2381:c6a4::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
| 45.142.104.0/24 /24 | authorized for AS49581 — Ferdinand Zink trading as Tube-Hosting |
| 5.175.164.0/24 /24 | authorized for AS12586 — GHOSTnet GmbH |
| 5.175.164.0/24 /24 | authorized for AS12586 — GHOSTnet GmbH |
| 45.142.104.0/24 /24 | authorized for AS49581 — Ferdinand Zink trading as Tube-Hosting |
| 5.175.179.0/24 /24 | authorized for AS12586 — GHOSTnet GmbH |
NIC Handles
ACRO43385-RIPE
AP706-AP
AS12586
AS213850
BNA2-AP
BTNET-MNT
DUMY-RIPE
DUMY-RIPE
ETG-MNT
ETG-MNT
GHOSTNET-MNT
GHOSTNET-MNT
+12 more