Piotr Chrzanowski
Data as of 2026-07-26
BGP inherited
Cluster stats
| Netblocks | 11 |
| IPv6 | 11 prefixes (largest 2a14:7581:3900::/40) |
| Cluster ID | 213447675 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 8 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
6 weekly snapshots · JSON
12
0 netblocks since 2026-07-05
2026-07-05
peak 12
2026-07-26
IP Ranges (11)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 2001:7f8:ca:1:0:19:9763:1/128 | Piotr Chrzanowski | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:10f::3:c53:1630/128 | Piotr Chrzanowski | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:134::78/128 | Piotr Chrzanowski | PEERINGDB | ASSIGNED | ● high |
| 2a0e:8f01:1000:11::157/128 | Piotr Chrzanowski | PEERINGDB | ASSIGNED | ● high |
| 2a0e:8f01:1000:24::21d/128 | Piotr Chrzanowski | PEERINGDB | ASSIGNED | ● high |
| 2a14:7581:3961::/48 | Piotr Chrzanowski | BGP | ANNOUNCED | ● high |
| 2a14:7581:3962::/48 | Piotr Chrzanowski | BGP | ANNOUNCED | ● high |
| 2a14:7581:3966::/48 | Piotr Chrzanowski | BGP | ANNOUNCED | ● high |
| 2a14:7581:3977::/48 | Piotr Chrzanowski | BGP | ANNOUNCED | ● high |
| 2a14:7581:39ff::/48 | Piotr Chrzanowski | BGP | ANNOUNCED | ● high |
| 2a14:7581:3900::/40 | Piotr Chrzanowski | RIPE | ALLOCATED-BY-LIR | ● low |
IPv6 ranges (11)
Network trust
what's this?
RPKI hygiene: C
how networks compare →
66.7%
of checked blocks have valid RPKI ROA coverage
(8 of 12)
No discrepancies found among checked blocks.
NIC Handles
AS199763
AS199763
DUMY-RIPE
DUMY-RIPE
NoPKT-MNT
ORG-PC205-RIPE
PCELA-MNT
PCELA-MNT