AS209237
NPL Management LTD
AS209237 is NPL Management LTD (npl.co.uk). It announces 65,536 IPv4 addresses in 4 prefixes, and 0 IPv6 prefixes.
United Kingdom· RIPE· allocated 2019-03-13· business
65,536
IPv4 addresses announced
4
IPv4 prefixes
0
IPv6 prefixes
0.00%
of its routes RPKI-valid
65,536
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 Kingdom65,536 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- NPL-MANG-LTD
- name
- NPL Management LTD
- org
- ORG-NPL11-RIPE
- org name
- NPL Management LTD
- org address
- National Physical Laboratory, Hampton Road, Teddington, Middlesex, TW11 0LW, United Kingdom
- org country
- GB
- country
- GB
- source
- ripe
- status
- ASSIGNED
- created
- 2019-03-13
- updated
- 2022-08-04
- maintainer
- RIPE-NCC-END-MNT|JANET-HOSTMASTER
- abuse name
- NPL Abuse Contact
- abuse email
- network.manager@npl.co.uk
- 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.
- 0.00%
- None here
- None here
- None here
- None here
- None here
- Hosting IP2560.39%
- None here
- None here
- None here
- 0.00%
- 0.00%
- 0.00%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 139.143.0.0/16 | United Kingdom | not found | 19 | 2026-10-02 |
| 139.143.0.0/17 | United Kingdom | not found | 17 | 2026-10-02 |
| 139.143.128.0/17 | United Kingdom | not found | 17 | 2026-10-02 |
| 139.143.204.0/23 | United Kingdom | not found | 19 | 2026-10-02 |
00 · Evaluate
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01 · License
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