Alterra Technologies Poland
Data as of 2026-11-08
BGP inherited
This organisation
| Netblocks | 5 · 512 IPv4 addresses |
| IPv6 | 3 prefixes (largest 2a0d:d940:b000::/40) |
| Record ID | 266633803 |
| Registry | RIPE |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 7 shared RIR contact/maintainer handles |
| Registry names | 1 distinct registrant name across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (5)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 81.90.20.0/24 | Alterra Technologies Poland | RIPE | ASSIGNED PA | ● low |
| 81.90.24.0/24 | Alterra Technologies Poland | RIPE | ASSIGNED PA | ● low |
| 2a0d:d940:5c0::/44 | Alterra Technologies Poland | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a0d:d940:b000::/40 | Alterra Technologies Poland | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a0d:d940:b100::/40 | Alterra Technologies Poland | RIPE | AGGREGATED-BY-LIR | ● low |
IPv6 ranges (3)
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(5 of 5)
Possible discrepancies (5)
These blocks are registered to Alterra Technologies Poland 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.
| 2a0d:d940:b000::/40 /40 | authorized for AS200954 — Andrey Shemanin |
| 2a0d:d940:b100::/40 /40 | authorized for AS200954 — Andrey Shemanin |
| 2a0d:d940:5c0::/44 /44 | authorized for AS200954 — Andrey Shemanin |
| 81.90.20.0/24 /24 | authorized for AS48407 — TigrisNet |
| 81.90.24.0/24 /24 | authorized for AS48407 — TigrisNet |
NIC Handles
ALTERRA-MNT
DUMY-RIPE
DUMY-RIPE
ORG-ATF3-RIPE
RIT-ECODE-MNT
TIGRISNET-NETWORK-MNT
trigan-mnt