AS9011 — The Patent Office
AS9011 announces 1 IPv4 prefixes covering 8,192 addresses and 1 IPv6 prefixes.
About this network
Held by The Patent Office, the UK government body now trading as the Intellectual Property Office (IPO), the agency responsible for patents, trade marks, designs and copyright.
What it's used for
Enterprise/government networking for the agency's own systems and public-facing services. It announces about 8k addresses concentrated in the contiguous 212.100.0.0/19 block with only ~3 observed neighbours, the profile of a single-organisation government network rather than a service provider.
Notable
No PTRs were returned on the addresses sampled, so nothing can be said about how individual hosts are named. The tight, contiguous block and low neighbour count are consistent with a legacy departmental allocation in use since at least 2000.
Interesting
The registry handle still reads "The Patent Office", the office's name before it was rebranded the Intellectual Property Office, a handle that has outlived the trading name.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 212.100.0.0/19
- 2a00:ed00::/32
Upstream networks
Adjacent networks
Routing security
- RPKI: 10 valid, 0 invalid and 0 not-found announcements; 10 ROAs.
- ASPA: 3 authorised providers.
- IRR: 100% of announcements registered; 10 route objects.
- Listed in as-sets: AS-BTGB-CUST, AS-KDDCUSTOMER2, AS-NTLI, AS-TELSTRA-INTL-CUSTOMERS, AS-UUNETUK, AS13335:AS-CUSTOMERS, AS262206:AS-CRI, AS37271:AS-TEST-CF, AS51202:AS-ALL.
awaiting query
enter an AS number, IP address, or organisation name above