Data as of Nov 3, 2026
Autonomous system
AS21054
Natwest Markets PLC
Announces 65,536 addresses in 11 prefixes. None of it is anonymizer space.
Type
Business
GB
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 155.136.0.0/16 since Jun 2009 | Business | NatWest | |
| 155.136.0.0/17 since Jul 2017 | Business | NatWest | |
| 155.136.60.0/22 since Feb 2017 | Business | NatWest | |
| 155.136.60.0/24 since May 2017 | Business | NatWest | |
| 155.136.61.0/24 since May 2017 | Business | NatWest | |
| 155.136.62.0/24 since May 2017 | Business | NatWest | |
| 155.136.63.0/24 since May 2017 | Business | NatWest | |
| 155.136.128.0/17 since Jul 2017 | Business | NatWest | |
| 155.136.197.0/24 since Jun 2020 | Business | NatWest | |
| 155.136.202.0/24 since Jun 2018 | Business | NatWest | |
| 155.136.203.0/24 since Jun 2018 | Business | NatWest |
Network & history
Profile
- Registered
- Aug 8, 2001
- Domain
- natwestmarkets.com
- Industry
- Internet Service Provider (ISP)
Routing patterns
How its announcements have moved
Arrivals