CRITERIA FIELDWORK LTD
CRITERIA-FIELDWORK-LTD
Data as of 2026-11-01
Registry
This organisation
| Netblocks | 4 |
| IPv6 | 2 prefixes (largest 2a00:2381:1076:100::/56) |
| Record ID | 259796072 |
| Registry | RIPE |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | Registry record |
| Shared handles | clustered on 3 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 |
|---|---|---|---|---|
| 213.120.213.32/28 | CRITERIA-FIELDWORK-LTD | RIPE | ASSIGNED PA | ● low |
| 213.122.166.192/28 | CRITERIA-FIELDWORK | RIPE | ASSIGNED PA | ● low |
| 2a00:2381:1076::/56 | CRITERIA-FIELDWORK | RIPE | ASSIGNED | ● low |
| 2a00:2381:1076:100::/56 | CRITERIA-FIELDWORK-LTD | RIPE | ASSIGNED | ● low |
IPv6 ranges (2)
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 (2)
These blocks are registered to CRITERIA-FIELDWORK-LTD 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.
| 2a00:2381:1076::/56 /56 | authorized for AS2856 — British Telecommunications Limited |
| 2a00:2381:1076:100::/56 /56 | authorized for AS2856 — British Telecommunications Limited |
NIC Handles
BTNET-MNT
DUMY-RIPE
DUMY-RIPE