DHM
Data as of 2026-07-26
BGP inherited
Cluster stats
| Netblocks | 3 |
| IPv6 | 2 prefixes (largest 2001:638:80d::/48) |
| All fragments | 8 blocks across 5 clusters |
| Cluster ID | 214690885 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| 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 (3)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 213.223.153.56/29 | DHM | RIPE | ASSIGNED PA | ● low |
| 2001:638:80d::/48 | DHM | RIPE | ASSIGNED | ● low |
| 2a00:2381:623::/48 | DHM-HOLDINGS | RIPE | AGGREGATED-BY-LIR | ● 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
(3 of 3)
Possible discrepancies (1)
These blocks are registered to DHM 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.
| 2a00:2381:623::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
Routed via provider/NREN (1)
These blocks are cryptographically authorized for this organisation's national research & education network or transit provider — expected topology for an institution that routes through it, not a discrepancy.
| 2001:638:80d::/48 /48 | routed via AS680 — DFN (Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.) |
NIC Handles
BTNET-MNT
CEGETEL-ENTREPRISES
DFN-LIR-MNT
DUMY-RIPE
DUMY-RIPE