AS21301
Natwest Markets PLC
AS21301 is Natwest Markets PLC. It announces 60,672 IPv4 addresses in 15 prefixes, and 0 IPv6 prefixes.
United Kingdom· RIPE· allocated 2001-10-24· business
60,672
IPv4 addresses announced
15
IPv4 prefixes
0
IPv6 prefixes
0.00%
of its routes RPKI-valid
60,672
of its IPv4 geolocated
1
country
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United Kingdom60,672 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- UK-NATWEST-AS21301
- name
- Natwest Markets PLC
- org
- ORG-TRBo1-RIPE
- org name
- Natwest Markets PLC
- org address
- 135 Bishopsgate London EC2M 3UR UK
- org country
- GB
- country
- GB
- source
- ripe
- status
- ASSIGNED
- created
- 2001-10-24
- updated
- 2026-04-10
- descr
- EDINBURGH
- maintainer
- RIPE-NCC-END-MNT|RBSG-MNT
- abuse name
- Abuse-C Role
- abuse email
- abuse.cz@o2.com
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- None here
- None here
- None here
- None here
- None here
- Hosting IP2560.42%
- None here
- None here
- None here
- 0.00%
- None here
- 0.01%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 155.136.0.0/16also AS21054 | United Kingdom | not found | 7 | 2026-10-03 |
| 155.136.0.0/17 | United Kingdom | not found | 17 | 2026-10-03 |
| 155.136.56.0/22 | United Kingdom | not found | 17 | 2026-10-02 |
| 155.136.56.0/24 | United Kingdom | not found | 17 | 2026-10-02 |
| 155.136.57.0/24 | United Kingdom | not found | 17 | 2026-10-02 |
| 155.136.58.0/24 | United Kingdom | not found | 17 | 2026-10-02 |
| 155.136.59.0/24 | United Kingdom | not found | 17 | 2026-10-02 |
| 155.136.128.0/17 | United Kingdom | not found | 17 | 2026-10-03 |
| 155.136.144.0/24also AS21054 | United Kingdom | not found | 8 | 2026-10-02 |
| 155.136.146.0/24also AS21054 | United Kingdom | not found | 8 | 2026-10-02 |
| 155.136.151.0/24 | United Kingdom | not found | 17 | 2026-10-02 |
| 155.136.200.0/23also AS21054 | United Kingdom | not found | 13 | 2026-10-02 |
| 155.136.200.0/24 | United Kingdom | not found | 17 | 2026-10-02 |
| 155.136.201.0/24 | United Kingdom | not found | 17 | 2026-10-02 |
| 155.136.202.0/23also AS21054 | United Kingdom | not found | 13 | 2026-10-02 |
00 · Evaluate
Test the real build first.
An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.
01 · License
Then license what you use.
Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell — priced by scope, not by seat.
Annual terms, a named contact, and flexible payment terms — monthly, quarterly or yearly.