NORTHWESTERN CORPORATION
GLEIF verified
LEI
3BPWMBHR1R9SHUN7J795
Registered name
NORTHWESTERN CORPORATION
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 16 |
| All fragments | 84 blocks across 7 clusters |
| Cluster ID | 204416915 |
| Registry | BGP |
| Owner jurisdiction | US-DE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 3BPWMBHR1R9SHUN7J795 |
| Shared handles | clustered on 7 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
4 weekly snapshots · JSON
16
0 netblocks since 2026-07-05
2026-07-05
peak 16
2026-07-13
IP Ranges (16)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 199.3.108.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.3.109.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.16.0 – 199.96.27.255 | NORTHWESTERN CORPORATION | ARIN | ● high | |
| 199.96.16.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.17.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.18.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.19.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.20.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.21.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.22.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.23.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.24.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.25.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.26.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 199.96.27.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
| 206.107.235.0/24 | NORTHWESTERN CORPORATION | BGP | ANNOUNCED | ● high |
NIC Handles
AS15157
AS22629
FERRI236-ARIN
NORTHW-28
SC1244-ARIN
SC1244-ARIN
WILSO1898-ARIN