subnet.im

Allocated but unannounced space

Every block here was allocated or assigned by a regional internet registry, and none of them appeared in any routing table we collected at our last snapshot — neither as a route of their own, nor covered by a larger announcement, nor carved up into more specifics.

“Unannounced” does not mean “unused”

Plenty of allocated space is deliberately kept off the public internet: private interconnects, lab and lawful-intercept ranges, networks reachable only inside one operator, and space held in reserve. Some of it is announced somewhere our collectors cannot see, which is a limit of our vantage points rather than a fact about the block.

It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today. Nothing on this page means a block is unallocated, available, or free to announce.

Browse by registry

Browse by country

Countries with unannounced space registered through RIPE NCC, largest first.

Unannounced blocks in United Kingdom

2,577 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1101 to 1150 of 2577
PrefixAddressesRegistryCountryAllocated
195.68.206.0/23512RIPE NCCGB26th May 2003
195.68.238.0/23512RIPE NCCGB23rd Jun 2003
195.69.100.0/221kRIPE NCCGB4th Jun 2018
195.69.152.0/221kRIPE NCCGB17th Mar 2003
195.72.116.0/23512RIPE NCCGB7th Aug 2000
195.78.110.0/23512RIPE NCCGB6th Oct 2009
195.8.100.0/24256RIPE NCCGB12th Jan 2005
195.8.160.0/198.2kRIPE NCCGB11th Dec 1997
195.8.96.0/24256RIPE NCCGB12th Jan 2005
195.85.192.0/24256RIPE NCCGB8th Feb 2024
195.85.232.0/24256RIPE NCCGB27th Jun 2003
195.88.118.0/24256RIPE NCCGB25th Sept 2025
198.133.226.0/24256RIPE NCCGB30th Apr 1993
198.133.80.0/221kRIPE NCCGB9th Apr 1993
198.133.84.0/23512RIPE NCCGB9th Apr 1993
198.135.167.0/24256RIPE NCCGB18th May 1993
198.205.14.0/24256RIPE NCCGB25th Jun 1993
198.62.104.0/24256RIPE NCCGB4th Feb 1993
198.7.96.0/204.1kRIPE NCCGB26th Nov 2012
199.120.230.0/24256RIPE NCCGB8th Mar 1994
199.244.145.0/24256RIPE NCCGB16th Aug 1994
2.152.96.0/221kRIPE NCCGB3rd Nov 2010
2001:15e0::/324.3B × /64RIPE NCCGB7th Oct 2003
2001:3200::/2934.4B × /64RIPE NCCGB26th Jul 2024
2001:3240::/2934.4B × /64RIPE NCCGB6th Sept 2024
2001:40d8::/324.3B × /64RIPE NCCGB3rd Aug 2004
2001:4140::/324.3B × /64RIPE NCCGB23rd Sept 2004
2001:41e8::/324.3B × /64RIPE NCCGB2nd Dec 2004
2001:4bd0::/324.3B × /64RIPE NCCGB4th Mar 2005
2001:4be8::/324.3B × /64RIPE NCCGB10th Mar 2005
2001:4cb0::/324.3B × /64RIPE NCCGB13th Jun 2005
2001:4d30::/324.3B × /64RIPE NCCGB22nd Aug 2005
2001:678:1018::/4865.5k × /64RIPE NCCGB31st Jul 2026
2001:678:1054::/4865.5k × /64RIPE NCCGB5th Mar 2025
2001:678:1178::/4865.5k × /64RIPE NCCGB10th Dec 2025
2001:678:11a8::/4865.5k × /64RIPE NCCGB16th Jan 2026
2001:678:11ac::/4865.5k × /64RIPE NCCGB16th Jan 2026
2001:678:12d0::/4865.5k × /64RIPE NCCGB31st Jul 2026
2001:678:1344::/4865.5k × /64RIPE NCCGB22nd Sept 2026
2001:678:1358::/4865.5k × /64RIPE NCCGB1st Oct 2026
2001:678:13b8::/4865.5k × /64RIPE NCCGB2nd Nov 2026
2001:678:13d8::/4865.5k × /64RIPE NCCGB6th Nov 2026
2001:678:144::/4865.5k × /64RIPE NCCGB25th Nov 2019
2001:678:1ac::/4865.5k × /64RIPE NCCGB16th Jul 2019
2001:678:2cc::/4865.5k × /64RIPE NCCGB23rd Apr 2021
2001:678:2dc::/4865.5k × /64RIPE NCCGB23rd Nov 2016
2001:678:2e0::/4865.5k × /64RIPE NCCGB21st Apr 2026
2001:678:460::/4865.5k × /64RIPE NCCGB15th May 2017
2001:678:484::/4865.5k × /64RIPE NCCGB31st May 2017
2001:678:488::/4865.5k × /64RIPE NCCGB2nd Jun 2017