Cedars-Sinai Health Systems
Data as of 2026-10-11
BGP inherited
This organisation
| Netblocks | 6 · 66,816 IPv4 addresses |
| Record ID | 248193091 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 9 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 (6)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 166.124.0.0/16 | Cedars-Sinai Health Systems | ARIN | DIRECT ALLOCATION | ● high |
| 192.203.41.0/24 | Cedars-Sinai Health Systems | ARIN | DIRECT ALLOCATION | ● high |
| 192.203.204.0/24 | Cedars-Sinai Health Systems | ARIN | DIRECT ALLOCATION | ● high |
| 192.231.86.0/24 | Cedars-Sinai Health Systems | BGP | ANNOUNCED | ● high |
| 192.231.133.0/24 | Cedars-Sinai Health Systems | ARIN | DIRECT ALLOCATION | ● high |
| 199.181.206.0/24 | Cedars-Sinai Health Systems | ARIN | DIRECT ALLOCATION | ● high |
Footprint over time
14 weekly snapshots · JSON
11
+5 netblocks since 2026-07-12
2026-07-12
peak 11
2026-10-11
Other domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: F
how networks compare →
18.2%
of checked blocks have valid RPKI ROA coverage
(2 of 11)
Possible discrepancies (2)
These blocks are registered to Cedars-Sinai Health Systems 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.
| 192.231.133.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
| 192.231.133.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
NIC Handles
AS22328
AS29721
BRIGM1-ARIN
BRIGM1-ARIN
BRIGM1-ARIN
BRIGM1-ARIN
CHANG11-ARIN
CHANG11-ARIN
CMC-27