NATWEST MARKETS PLC
Natwest Markets PLC
Data as of 2026-07-26
GLEIF verified
Complete entity footprint
4 linked clusters ·
47 netblocks ·
134,928 IPv4 addresses ·
1 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
RR3QWICWWIPCS8A4S074
Registered name
NATWEST MARKETS PLC
Jurisdiction
Ultimate parent
NATWEST GROUP PLC
2138005O9XJIJN4JPN90
Cluster stats
| Netblocks | 41 · 133,896 IPv4 addresses |
| IPv6 | 1 prefix (largest 2a04:5580::/29) |
| Registered in | United Kingdom (35) · United States (4) · Hong Kong (1) |
| Cluster ID | 213344779 |
| Registry | BGP |
| Owner jurisdiction | GB |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI RR3QWICWWIPCS8A4S074 |
| Shared handles | clustered on 20 shared RIR contact/maintainer handles |
| Registry names | 6 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
6 weekly snapshots · JSON
41
0 netblocks since 2026-07-05
2026-07-05
peak 41
2026-07-26
IP Ranges (41)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 146.121.20.0/24 | NatWest Markets Securities Inc. | BGP | ANNOUNCED | ● high |
| 146.121.21.0/24 | NatWest Markets Securities Inc. | BGP | ANNOUNCED | ● high |
| 146.121.23.0/24 | NatWest Markets Securities Inc. | BGP | ANNOUNCED | ● high |
| 147.114.44.0/23 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 147.114.44.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 147.114.46.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 147.114.46.0/23 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 147.114.47.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 147.114.224.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 147.114.224.0/23 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 147.114.225.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 147.114.226.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.0.0/16 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.0.0/17 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.56.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.56.0/22 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.57.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.58.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.59.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.60.0/22 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.60.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.61.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.62.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.63.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.128.0/17 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.144.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.146.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.151.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.197.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.200.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.200.0/23 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.201.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.202.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.202.0/23 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 155.136.203.0/24 | Natwest Markets PLC | BGP | ANNOUNCED | ● high |
| 94.31.24.200/29 | Natwest_Markets_Plc | RIPE | ASSIGNED PA | ● low |
| 146.121.0.0/16 | NatWest Markets Securities Inc. | ARIN | DIRECT ALLOCATION | ● low |
| 193.163.122.0/23 | Natwest Markets PLC | RIPE | ASSIGNED PI | ● low |
| 193.178.116.0/24 | Natwest Markets PLC | RIPE | ASSIGNED PI | ● low |
| 195.152.212.0/24 | NATWEST-MARKETS | RIPE | ASSIGNED PA | ● low |
| 2a04:5580::/29 | Natwest Markets PLC | RIPE | ALLOCATED-BY-RIR | ● low |
IPv6 ranges (1)
| CIDR |
|---|
| 2a04:5580::/29 |
Corporate group (4 confirmed entities)
+1 additional unconfirmed candidate not shown — full list (JSON)- Coutts & Co AG 3 blocks
- Rbs Services India Private Limited 2 blocks
- SUZHOU-TRUST-CORP 1 blocks
Network trust
what's this?
RPKI hygiene: F
how networks compare →
7.3%
of checked blocks have valid RPKI ROA coverage
(3 of 41)
Possible discrepancies (1)
These blocks are registered to Natwest Markets PLC 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.
| 195.152.212.0/24 /24 | authorized for AS4637 — Telstra International Limited |
NIC Handles
ABOVENET-MNT
AS14864
AS21054
AS21301
AS50422
AS50432
DUMY-RIPE
DUMY-RIPE
FUSCO11-ARIN
FUSCO11-ARIN
FUSCO11-ARIN
GCM-30
+8 more