INTERNATIONAL BUSINESS MACHINES CORPORATION
International Business Machines Corporation
GLEIF verified
Complete entity footprint
10 linked clusters ·
964 netblocks ·
23,748,347 IPv4 addresses
This organisation's clusters combined by evidence —
shared GLEIF corporate family
— not name similarity, so genuinely different organisations that share a name are excluded.
LEI
VGRQXHF3J8VDLUA7XE92
Registered name
INTERNATIONAL BUSINESS MACHINES CORPORATION
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 42 · 4,554,999 IPv4 addresses |
| Registered in | United States (37) · Finland (3) · Spain (1) |
| All fragments | 45 blocks across 2 clusters |
| Cluster ID | 213774296 |
| Registry | RIPE |
| Owner jurisdiction | US-NY |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI VGRQXHF3J8VDLUA7XE92 |
| Shared handles | clustered on 9 shared RIR contact/maintainer handles |
| Registry names | 4 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
6 weekly snapshots · JSON
42
0 netblocks since 2026-07-05
2026-07-05
peak 42
2026-07-26
IP Ranges (42)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 13.116.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 13.120.0.0 – 13.122.255.255 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 13.168.0.0 – 13.183.255.255 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 62.37.140.160/29 | INTERNATIONAL_BUSINESS_MACHINES | RIPE | ASSIGNED PA | ● low |
| 62.236.130.0/24 | OY-INTERNATIONAL-BUSINESS-MACHINES-AB-NET | RIPE | ASSIGNED PA | ● low |
| 128.168.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 130.198.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 135.90.0.0/16 | International Business Machines Corporation | RIPE | ALLOCATED PA | ● low |
| 141.125.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 149.81.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 150.112.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 158.175.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 158.176.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 158.177.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 158.178.0.0/17 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 158.231.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 159.8.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 159.23.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 159.122.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 161.156.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 161.202.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 162.133.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 163.66.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 163.68.0.0/15 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 163.73.0.0 – 163.75.255.255 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 163.102.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 163.107.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 163.109.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 165.192.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 166.8.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 166.9.0.0 – 166.10.255.255 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 166.11.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 168.1.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 169.38.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 169.44.0.0/16 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 169.45.0.0 – 169.48.255.255 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 169.50.0.0/15 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 169.53.0.0 – 169.57.255.255 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 169.59.0.0 – 169.63.255.255 | International Business Machines Corporation | RIPE | LEGACY | ● low |
| 194.100.20.8/29 | OY-INTERNATIONAL-BUSINESS-MACHINES-AB | RIPE | ASSIGNED PA | ● low |
| 194.100.20.64/28 | OY-INTERNATIONAL-BUSINESS-MACHINES-AB | RIPE | ASSIGNED PA | ● low |
| 2a07:8940::/29 | International Business Machines Corporation | RIPE | ALLOCATED-BY-RIR | ● low |
Domains hosted in this network
what's this?Corporate group (10 confirmed entities)
+10 additional unconfirmed candidates not shown — full list (JSON)- IBM Cloud 816 blocks
- Red Hat, Inc. 39 blocks
- IBM Deutschland GmbH 27 blocks
- IBM Singapore Pte Ltd 12 blocks
- IBM United Kingdom Limited 10 blocks
- Compagnie IBM France SAS 9 blocks
- VALUE TRANSFORMATION SERVICES S.P.A. 4 blocks
- International Business Machines of Belgium Ltd 3 blocks
- IBM Romania SRL 2 blocks
Network trust
what's this?
RPKI hygiene: F
how networks compare →
9.5%
of checked blocks have valid RPKI ROA coverage
(4 of 42)
Possible discrepancies (1)
These blocks are registered to International Business Machines Corporation 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.
| 62.236.130.0/24 /24 | authorized for AS16086 — DNA Oyj |
NIC Handles
DUMY-RIPE
DUMY-RIPE
FI2G-MNT
FTE-GGRR-MNT
ORG-IBMC2-RIPE
RIPE-NCC-HM-MNT
RIPE-NCC-LEGACY-MNT
SLAB
lir-us-international2-1-MNT