ALTRO GROUP LIMITED
ALTRO-LIMITED
GLEIF verified
LEI
213800D146SXTAZK3G09
Registered name
ALTRO GROUP LIMITED
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 9 |
| All fragments | 10 blocks across 2 clusters |
| Cluster ID | 210659151 |
| Registry | RIPE |
| Owner jurisdiction | GB |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 213800D146SXTAZK3G09 |
| Shared handles | clustered on 3 shared RIR contact/maintainer handles |
| Registry names | 1 distinct registrant name across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
9
0 netblocks since 2026-07-05
2026-07-05
peak 9
2026-07-19
IP Ranges (9)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 81.128.128.88/29 | ALTRO-LIMITED | RIPE | ASSIGNED PA | ● low |
| 81.128.233.40/29 | ALTRO-LIMITED | RIPE | ASSIGNED PA | ● low |
| 81.131.32.0/26 | ALTRO-LIMITED | RIPE | ASSIGNED PA | ● low |
| 81.148.202.64/29 | ALTRO-LIMITED | RIPE | ASSIGNED PA | ● low |
| 2a00:2381:2ba0::/48 | ALTRO-LIMITED | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a00:2381:2ba0::/56 | ALTRO-LIMITED | RIPE | ASSIGNED | ● low |
| 2a00:2381:2ba0:100::/56 | ALTRO-LIMITED | RIPE | ASSIGNED | ● low |
| 2a00:2381:2ba0:200::/56 | ALTRO-LIMITED | RIPE | ASSIGNED | ● low |
| 2a00:2381:2ba0:400::/56 | ALTRO-LIMITED | RIPE | ASSIGNED | ● low |
Possibly related to this organisation
what's this?Same name family
Separately-registered clusters whose names share “ALTRO” — often
per-country or per-system registrations of the same brand, occasionally a different
organisation sharing the name. Not counted in this organisation's own footprint.
- Altro-Debolon-GmbH 1 blocks
Sub-allocations under carriers
IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own
naming convention, not a direct registration.
- ALTRONNET via T-Mobile Czech Republic a.s. sub-allocation
- ALTROVATREUHANDAG-NET via green.ch AG sub-allocation
- WALTROP-NET sub-allocation
- APOLLO-BALTROTORS-SIA via SIA Tet sub-allocation
- CONS-CTM-ALTROMERCATO-SCARL sub-allocation
- ROBA-DELLALTRO-MONDO sub-allocation
- ROBADELL-ALTROMONDO-PICCOLASOC sub-allocation
- VALTRO-FILDITOGNOLIDAVIDE-C-S sub-allocation
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(9 of 9)
Possible discrepancies (5)
These blocks are registered to ALTRO-LIMITED 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.
| 2a00:2381:2ba0::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
| 2a00:2381:2ba0::/56 /56 | authorized for AS2856 — British Telecommunications Limited |
| 2a00:2381:2ba0:100::/56 /56 | authorized for AS2856 — British Telecommunications Limited |
| 2a00:2381:2ba0:200::/56 /56 | authorized for AS2856 — British Telecommunications Limited |
| 2a00:2381:2ba0:400::/56 /56 | authorized for AS2856 — British Telecommunications Limited |
NIC Handles
BTNET-MNT
DUMY-RIPE
DUMY-RIPE