Sieci Blokowe S.C.
Data as of 2026-10-04
BGP inherited
This organisation
| Netblocks | 22 · 20,224 IPv4 addresses |
| IPv6 | 2 prefixes (largest 2a03:24c0::/32) |
| Record ID | 246067577 |
| Registry | BGP |
| Customers | see who runs inside 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 | |
IP Ranges (22)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 46.45.64.0/18 | Sieci Blokowe S.C. | BGP | ANNOUNCED | ● high |
| 46.45.80.0/20 | Sieci Blokowe S.C. | BGP | ANNOUNCED | ● high |
| 46.45.96.0/20 | Sieci Blokowe S.C. | BGP | ANNOUNCED | ● high |
| 46.45.104.0/23 | Sieci Blokowe S.C. | BGP | ANNOUNCED | ● high |
| 46.45.112.0/20 | Sieci Blokowe S.C. | BGP | ANNOUNCED | ● high |
| 2a03:24c0::/48 | Sieci Blokowe S.C. | BGP | ANNOUNCED | ● high |
| 80.48.73.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 83.2.170.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 83.2.171.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 83.2.172.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 83.2.173.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 195.116.34.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 213.77.107.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 213.77.113.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 213.77.119.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 213.77.123.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 217.97.185.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 217.98.34.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 217.98.35.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 217.98.36.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 217.98.37.0/24 | SIECI-BLOKOWE-SC | RIPE | ASSIGNED PA | ● low |
| 2a03:24c0::/32 | Sieci Blokowe S.C. | RIPE | ALLOCATED-BY-RIR | ● low |
IPv6 ranges (2)
Footprint over time
15 weekly snapshots · JSON
23
+3 netblocks since 2026-07-05
2026-07-05
peak 23
2026-10-04
Network trust
what's this?
RPKI hygiene: A
how networks compare →
95.7%
of checked blocks have valid RPKI ROA coverage
(22 of 23)
Possible discrepancies (15)
These blocks are registered to Sieci Blokowe S.C. 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.
| 217.97.185.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 80.48.73.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 195.116.34.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 217.98.34.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 217.98.35.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 217.98.36.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 217.98.37.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 83.2.170.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 83.2.171.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 83.2.172.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 83.2.173.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 213.77.107.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 213.77.113.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 213.77.119.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
| 213.77.123.0/24 /24 | authorized for AS5617 — Orange Polska Spolka Akcyjna |
NIC Handles
AS51484
BLOKOWE-PL-MNT
BLOKOWE-PL-MNT
DUMY-RIPE
DUMY-RIPE
ORG-SBS16-RIPE
RIPE-NCC-HM-MNT
TPNET