INSTINET INTERNATIONAL LIMITED
Instinet
Data as of 2026-09-06
GLEIF verified
Complete entity footprint
6 linked clusters ·
188 netblocks ·
279,798 IPv4 addresses ·
4 IPv6 prefixes
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
213800TZ2ABZTUS3PH49
Registered name
INSTINET INTERNATIONAL LIMITED
Jurisdiction
Ultimate parent
野村ホールディングス株式会社
549300B3CEAHYG7K8164
This organisation
| Netblocks | 105 · 77,824 IPv4 addresses |
| IPv6 | 1 prefix (largest 2001:1a0a:8010:9e::/64) |
| Also registered under this name | 131 netblocks across 3 separate records |
| Record ID | 236213277 |
| Registry | BGP |
| Owner jurisdiction | GB |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 213800TZ2ABZTUS3PH49 |
| Shared handles | clustered on 11 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 (105)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 170.16.0.0/16 | Instinet | ARIN | DIRECT ALLOCATION | ● high |
| 170.16.0.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.4.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.6.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.6.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.7.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.112.0/20 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.116.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.116.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.116.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.117.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.118.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.118.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.119.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.120.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.120.0/21 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.136.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.137.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.144.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.145.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.180.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.180.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.182.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.182.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 170.16.183.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.16.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.16.0 – 198.58.27.255 | Instinet | ARIN | DIRECT ALLOCATION | ● high |
| 198.58.16.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.58.16.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.16.0/21 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.17.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.18.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.58.18.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.19.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.58.20.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.58.20.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.20.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.21.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.22.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.58.22.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.23.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.58.24.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.58.24.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 198.58.25.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.58.26.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.58.27.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.186.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.186.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.102.186.0 – 198.102.197.255 | Instinet | ARIN | DIRECT ALLOCATION | ● high |
| 198.102.187.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.188.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 198.102.188.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.189.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.190.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.191.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.192.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 198.102.192.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.193.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.194.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.195.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.196.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.102.196.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.102.197.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.32.0/20 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.32.0 – 198.178.55.255 | Instinet | ARIN | DIRECT ALLOCATION | ● high |
| 198.178.32.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.33.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.34.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.35.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.36.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.36.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.36.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.37.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.38.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.38.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.39.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.40.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.40.0/21 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.40.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.40.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.41.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.42.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.42.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.43.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.44.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.44.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.44.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.45.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.46.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.46.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.47.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.48.0/22 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.48.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.48.0/21 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.48.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.49.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.50.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.50.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.51.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 198.178.52.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.52.0/23 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.53.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.54.0/24 | Instinet | BGP | ANNOUNCED | ● high |
| 198.178.55.0/24 | Instinet | ARIN | ASSIGNMENT | ● high |
| 2001:1a0a:8010:9e::/64 | INSTINET | RIPE | ASSIGNED | ● low |
IPv6 ranges (1)
Footprint over time
2 weekly snapshots · JSON
126
0 netblocks since 2026-08-23
2026-08-23
peak 126
2026-09-06
Corporate group (6 confirmed entities)
- Nomura International Plc 70 blocks
- NOMURA HOLDING AMERICA INC 6 blocks
- Instinet Europe Ltd 4 blocks
- Net-Instinet-Global-Services-Ltd 2 blocks
- Nomura America Services, LLC 1 blocks
Network trust
what's this?
RPKI hygiene: F
how networks compare →
0.8%
of checked blocks have valid RPKI ROA coverage
(1 of 126)
No discrepancies found among checked blocks.
NIC Handles
ABUSE67-ARIN
AS3762
AS63459
DUMY-RIPE
DUMY-RIPE
EQUINIX-FULFIL-MNT
EQUINIX-MNT
INRE
NOC194-ARIN
SP390-ARIN
SP390-ARIN