Semper AB
Data as of 2026-08-09
GLEIF verified
Complete entity footprint
2 linked clusters ·
5 netblocks ·
276 IPv4 addresses ·
1 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.
LEI
529900Y2ZZY94U5ZZX15
Registered name
Semper AB
Jurisdiction
Ultimate parent
Hero AG
529900099NYPCG4OHS15
Cluster stats
| Netblocks | 4 |
| IPv6 | 1 prefix (largest 2a00:801:f0::/48) |
| All fragments | 18 blocks across 8 clusters |
| Cluster ID | 220074058 |
| Registry | RIPE |
| Owner jurisdiction | SE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 529900Y2ZZY94U5ZZX15 |
| Shared handles | clustered on 5 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (4)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 194.237.0.8/29 | Semper AB | RIPE | ASSIGNED PA | ● high |
| 194.237.252.12/30 | Semper AB | RIPE | ASSIGNED PA | ● high |
| 212.247.16.248/29 | SE-SEMPER-NET | RIPE | ASSIGNED PA | ● low |
| 2a00:801:f0::/48 | SE-SEMPER-NET | RIPE | ASSIGNED | ● low |
IPv6 ranges (1)
| CIDR |
|---|
| 2a00:801:f0::/48 |
Corporate group (2 confirmed entities)
- Schwartauer Werke GmbH & Co. KG 2 blocks
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(4 of 4)
Possible discrepancies (1)
These blocks are registered to Semper AB 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.
| 2a00:801:f0::/48 /48 | authorized for AS1257 — Tele2 Sverige AB |
NIC Handles
DUMY-RIPE
DUMY-RIPE
ORG-SA4839-RIPE
SWIPNET-LIR-MNT
TELIANET-LIR