SUM
Data as of 2026-09-27
BGP inherited
This organisation
| Netblocks | 10 · 9,496 IPv4 addresses |
| Registered in | Poland (8) · China (1) · Russia (1) |
| Also registered under this name | 17 netblocks across 6 separate records |
| Record ID | 245467318 |
| Registry | APNIC |
| 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 (10)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 83.230.64.0/21 | SUM | RIPE | ASSIGNED PA | ● high |
| 83.230.96.16/28 | SUM | RIPE | ASSIGNED PA | ● high |
| 83.230.127.24/29 | SUM | RIPE | ASSIGNED PA | ● high |
| 213.227.96.0 – 213.227.96.95 | SUM | RIPE | ASSIGNED PA | ● high |
| 213.227.96.112 – 213.227.102.255 | SUM | RIPE | ASSIGNED PA | ● high |
| 213.227.104.0/22 | SUM | RIPE | ASSIGNED PA | ● high |
| 213.227.109.0 – 213.227.110.255 | SUM | RIPE | ASSIGNED PA | ● high |
| 213.227.112.0/20 | SUM | RIPE | ASSIGNED PA | ● high |
| 222.66.59.160/29 | SUM-CO | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 80.82.53.152/29 | SUM-NET | RIPE | ASSIGNED PA | ● low |
Footprint over time
14 weekly snapshots · JSON
10
0 netblocks since 2026-07-05
2026-07-05
peak 10
2026-09-27
Other domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(10 of 10)
Possible discrepancies (5)
These blocks are registered to SUM 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.
| 213.227.112.0/20 /20 | authorized for AS8508 — Silesian University of Technology, Computer Centre |
| 83.230.64.0/21 /21 | authorized for AS8508 — Silesian University of Technology, Computer Centre |
| 213.227.96.112 – 213.227.102.255 /21 | authorized for AS8508 — Silesian University of Technology, Computer Centre |
| 213.227.104.0/22 /22 | authorized for AS8508 — Silesian University of Technology, Computer Centre |
| 213.227.109.0 – 213.227.110.255 /23 | authorized for AS8508 — Silesian University of Technology, Computer Centre |
NIC Handles
DUMY-RIPE
DUMY-RIPE
LAY3-AP
LAY3-AP
MAINT-CHINANET-SH
PL-CKPOLSL-MNT
ROSTELECOM-MNT
SUM-RIPE