Autonomous System
AS9011 The Patent Office
GovernmentActiveUnited KingdomRIPE
AS9011 (UNSPECIFIED) is a government network operated by The Patent Office in United Kingdom, registered with RIPE. It has 9 IPv4 prefixes with 16,384 addresses and 1 IPv6 prefix, which makes it the 7,722nd largest of 82,141 active autonomous systems by IPv4 space.
IPv4 addresses16,384in 9 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#7,722of 82,141 active ASNs
Details
OrganizationThe Patent Office
AS nameUNSPECIFIED
Websitegov.uk
Country United Kingdom (GB)
Network typeGovernment
RegistryRIPE
Abuse contactchesh@ipo.gov.uk
Registered1970-01-01
Last updated2025-06-27
IPv4 prefixes
9 prefixes · 16,384 addresses| Network | Addresses | First – last address |
|---|---|---|
| 212.100.0.0/19 | 8,192 | 212.100.0.0 – 212.100.31.255 |
| 212.100.16.0/20 | 4,096 | 212.100.16.0 – 212.100.31.255 |
| 212.100.8.0/21 | 2,048 | 212.100.8.0 – 212.100.15.255 |
| 212.100.2.0/23 | 512 | 212.100.2.0 – 212.100.3.255 |
| 212.100.6.0/23 | 512 | 212.100.6.0 – 212.100.7.255 |
| 212.100.0.0/24 | 256 | 212.100.0.0 – 212.100.0.255 |
| 212.100.1.0/24 | 256 | 212.100.1.0 – 212.100.1.255 |
| 212.100.4.0/24 | 256 | 212.100.4.0 – 212.100.4.255 |
| 212.100.5.0/24 | 256 | 212.100.5.0 – 212.100.5.255 |
212.100.0.0/19 212.100.16.0/20 212.100.8.0/21 212.100.2.0/23 212.100.6.0/23 212.100.0.0/24 212.100.1.0/24 212.100.4.0/24 212.100.5.0/24
IPv6 prefixes
1 prefix- 2a00:ed00::/32
2a00:ed00::/32
Query AS9011 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS9011&key=YOUR_API_KEY"Any address in its prefixes resolves to AS9011, with or without a key:
curl "https://api.ipapi.is/?q=212.100.0.1"