Data as of Nov 3, 2026
Autonomous system
AS21301
Natwest Markets PLC
Announces 2,816 addresses in 12 prefixes. None of it is anonymizer space.
Type
Business
GB
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 155.136.56.0/22 since Jan 2017 | Business | NatWest | |
| 155.136.56.0/24 since May 2017 | Business | NatWest | |
| 155.136.57.0/24 since May 2017 | Business | NatWest | |
| 155.136.58.0/24 since May 2017 | Business | NatWest | |
| 155.136.59.0/24 since May 2017 | Business | NatWest | |
| 155.136.144.0/24 since Jul 2026 | Business | NatWest | |
| 155.136.146.0/24 since Jul 2026 | Business | NatWest | |
| 155.136.151.0/24 since Jul 2020 | Business | NatWest | |
| 155.136.200.0/23 since Jun 2018 | Business | NatWest | |
| 155.136.200.0/24 since Jun 2018 | Business | NatWest | |
| 155.136.201.0/24 since Jun 2018 | Business | NatWest | |
| 155.136.202.0/23 since Mar 2025 | Business | NatWest |
Network & history
Profile
- Registered
- Oct 24, 2001
- Domain
- natwestmarkets.com
- Industry
- Internet Service Provider (ISP)
Routing patterns
How its announcements have moved
Arrivals