NORTHROP GRUMMAN CORPORATION
Northrop Grumman
GLEIF verified
LEI
RIMU48P07456QXSO0R61
Registered name
NORTHROP GRUMMAN CORPORATION
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 102 |
| All fragments | 103 blocks across 2 clusters |
| Cluster ID | 191614951 |
| Registry | APNIC |
| Owner jurisdiction | US-DE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI RIMU48P07456QXSO0R61 |
| Shared handles | clustered on 37 shared RIR contact/maintainer handles |
| Registry names | 11 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
2 weekly snapshots · JSON
102
0 netblocks since 2026-07-05
2026-07-05
peak 102
2026-07-06
IP Ranges (102)
showing 50 of 102 — see all — ⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 103.103.1.0/24 | Northrop Grumman M5 Network Security Pty Ltd | APNIC | ASSIGNED PORTABLE | ● high |
| 128.99.0.0/16 | Northrop Grumman Systems Corporation | ARIN | ● high | |
| 129.4.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 129.193.0.0/16 | Northrop Grumman Corp. | ARIN | ● high | |
| 130.124.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 132.228.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.77.0.0/16 | Northrop Grumman Corp. | ARIN | ● high | |
| 134.223.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.4.0/22 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.8.0/22 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.17.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.19.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.128.0/20 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.160.0/20 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.184.0/22 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.188.0/22 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.192.0/19 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.224.0/22 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.224.0/19 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.228.0/23 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.230.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.231.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.232.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.236.0/22 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 134.223.239.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 137.51.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 153.113.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 155.104.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 157.127.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 158.114.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 159.4.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 159.201.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 167.225.0.0/16 | Northrop Grumman Corp. | ARIN | ● high | |
| 167.225.0.0/17 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 185.160.184.0/24 | Northrop Grumman UK Limited | BGP | ANNOUNCED | ● high |
| 185.160.185.0/24 | Northrop Grumman UK Limited | BGP | ANNOUNCED | ● high |
| 185.160.186.0/24 | Northrop Grumman UK Limited | BGP | ANNOUNCED | ● high |
| 185.160.187.0/24 | Northrop Grumman UK Limited | BGP | ANNOUNCED | ● high |
| 192.31.248.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.35.84.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.45.0.0/19 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.45.0.0/16 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.83.248.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.86.67.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.86.68.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.86.69.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.86.70.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.86.71.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.86.72.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
| 192.86.73.0/24 | Northrop Grumman | BGP | ANNOUNCED | ● high |
Network trust
what's this?
RPKI hygiene: F
how networks compare →
16.7%
of checked blocks have valid RPKI ROA coverage
(17 of 102)
Possible discrepancies (5)
These blocks are registered to Northrop Grumman but cryptographically authorized for a different, unrelated network (3 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2a00:2381:3dc::/48 /48 | authorized for AS2856 — British Telecommunications PLC |
| 2a00:2381:d5::/48 /48 | authorized for AS2856 — British Telecommunications PLC |
| 2a00:2381:3dc::/56 /56 | authorized for AS2856 — British Telecommunications PLC |
| 193.101.168.0/21 /21 | authorized for AS13054 — badenIT GmbH |
| 103.103.1.0/24 /24 | authorized for AS2764 — AAPT Limited |
NIC Handles
AN1169-AP
APNIC-HM
AS1906
AS207173
AS207900
AS5089-MNT
BIEBE3-ARIN
BTNET-MNT
CKN23-ARIN
CKN23-ARIN
DA192-ARIN
DEC3-ARIN
+25 more