Helsinki Telephone Company Ltd.
BGP inherited
Cluster stats
| Netblocks | 11 · 3,063 IPv4 addresses |
| Registered in | Germany (7) · Finland (1) · Norway (1) |
| Cluster ID | 209080862 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 6 shared RIR contact/maintainer handles |
| Registry names | 11 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
11
0 netblocks since 2026-07-05
2026-07-05
peak 11
2026-07-19
IP Ranges (11)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 192.92.216.0/24 | Helsinki Telephone Company Ltd. | RIPE | LEGACY | ● high |
| 128.214.136.0/22 | HELSINKI-UNI | RIPE | LEGACY | ● low |
| 193.118.200.0/24 | HELSINKI_RED1 | RIPE | ASSIGNED PA | ● low |
| 193.118.201.0/24 | HELSINKI_RED2 | RIPE | ASSIGNED PA | ● low |
| 193.118.202.0/24 | HELSINKI_RED3 | RIPE | ASSIGNED PA | ● low |
| 193.118.203.0/24 | HELSINKI_RED4 | RIPE | ASSIGNED PA | ● low |
| 193.118.204.0/24 | HELSINKI_BLACK1 | RIPE | ASSIGNED PA | ● low |
| 193.118.205.0/24 | HELSINKI_BLACK2 | RIPE | ASSIGNED PA | ● low |
| 193.118.206.0/24 | HELSINKI_BLACK3 | RIPE | ASSIGNED PA | ● low |
| 2a0b:2900:1200::/41 | Helsinki_FSA | RIPE | ASSIGNED | ● low |
| 2a0b:2900:1280::/41 | Helsinki_FSB | RIPE | ASSIGNED | ● low |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
90.9%
of checked blocks have valid RPKI ROA coverage
(10 of 11)
Possible discrepancies (10)
These blocks are registered to Helsinki Telephone Company Ltd. but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2a0b:2900:1200::/41 /41 | authorized for AS48582 — ngena GmbH |
| 2a0b:2900:1280::/41 /41 | authorized for AS48582 — ngena GmbH |
| 128.214.136.0/22 /22 | authorized for AS1741 — CSC - Tieteen tietotekniikan keskus Oy |
| 193.118.200.0/24 /24 | authorized for AS48582 — ngena GmbH |
| 193.118.201.0/24 /24 | authorized for AS48582 — ngena GmbH |
| 193.118.202.0/24 /24 | authorized for AS48582 — ngena GmbH |
| 193.118.203.0/24 /24 | authorized for AS48582 — ngena GmbH |
| 193.118.204.0/24 /24 | authorized for AS48582 — ngena GmbH |
| 193.118.205.0/24 /24 | authorized for AS48582 — ngena GmbH |
| 193.118.206.0/24 /24 | authorized for AS48582 — ngena GmbH |
NIC Handles
AS1741-MNT
DUMY-RIPE
DUMY-RIPE
ERX-NET-192-92-216-MNT
ORG-HTCL4-RIPE
de-ngena-1-mnt