PORTSMOUTH
BGP inherited
Cluster stats
| Netblocks | 10 |
| All fragments | 43 blocks across 24 clusters |
| Cluster ID | 210474125 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| 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
10
0 netblocks since 2026-07-05
2026-07-05
peak 10
2026-07-19
IP Ranges (10)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 31.121.71.232/29 | PORTSMOUTH | RIPE | ASSIGNED PA | ● low |
| 86.188.217.112/29 | PORTSMOUTH | RIPE | ASSIGNED PA | ● low |
| 109.159.207.128/27 | PORTSMOUTH | RIPE | ASSIGNED PA | ● low |
| 194.74.3.248/29 | PORTSMOUTH | RIPE | ASSIGNED PA | ● low |
| 213.123.57.224/27 | PORTSMOUTH | RIPE | LIR-PARTITIONED PA | ● low |
| 217.38.6.200/29 | PORTSMOUTH | RIPE | ASSIGNED PA | ● low |
| 217.38.27.80/29 | PORTSMOUTH | RIPE | ASSIGNED PA | ● low |
| 2a00:2381:2b7:1000::/56 | PORTSMOUTH | RIPE | ASSIGNED | ● low |
| 2a00:2381:2b7:1500::/56 | PORTSMOUTH | RIPE | ASSIGNED | ● low |
| 2a00:2381:3405:200::/56 | PORTSMOUTH | RIPE | ASSIGNED | ● low |
Possibly related to this organisation
what's this?Same name family
Separately-registered clusters whose names share “PORTSMOUTH” — 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.
- PORTSMOUTH-CITY-COUNCIL 8 blocks
- PORTSMOUTH-AVIATION 2 blocks
- PORTSMOUTH-PORTS 2 blocks
- PORTSMOUTH-TECHNOPOLE 2 blocks
- PORTSMOUTH-COMMERCIAL-PORTS-NET1-POR-GB 1 blocks
- PORTSMOUTH-HOUSING 1 blocks
- PORTSMOUTH-PUBLISHING-PRINTING 1 blocks
- PORTSMOUTH-CATHEDRAL 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.
- PORTSMOUTHCHAMBER sub-allocation
- Ibmportsmouth sub-allocation
- PORTSMOUTH-ACL via Jisc Services Limited sub-allocation
- PORTSMOUTH-CATHEDRAL sub-allocation
- PORTSMOUTH-HOUSING sub-allocation
- BUSINESS-POST-WOLVES---PORTSMOUTH sub-allocation
- BUSINESS-POST-BIRMINGHAM---PORTSMOUTH sub-allocation
- PORTSMOUTH-COMMERCIAL-PORTS-NET1-POR-GB sub-allocation
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(10 of 10)
No discrepancies found among checked blocks.
NIC Handles
BTNET-MNT
DUMY-RIPE
DUMY-RIPE