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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 1201 to 1250 of 2577
PrefixAddressesRegistryCountryAllocated
2001:67c:2e84::/4865.5k × /64RIPE NCCGB30th Sept 2015
2001:67c:2e88::/4865.5k × /64RIPE NCCGB30th Sept 2015
2001:67c:33c::/4865.5k × /64RIPE NCCGB4th Nov 2010
2001:67c:3d8::/4865.5k × /64RIPE NCCGB11th Jan 2011
2001:67c:3e4::/4865.5k × /64RIPE NCCGB25th Jul 2012
2001:67c:3f0::/4865.5k × /64RIPE NCCGB26th Jul 2012
2001:67c:42c::/4865.5k × /64RIPE NCCGB12th Feb 2014
2001:67c:580::/4865.5k × /64RIPE NCCGB6th May 2014
2001:67c:694::/4865.5k × /64RIPE NCCGB17th Jul 2014
2001:67c:6a8::/4865.5k × /64RIPE NCCGB24th Jul 2014
2001:67c:72c::/4865.5k × /64RIPE NCCGB18th Sept 2014
2001:67c:788::/4865.5k × /64RIPE NCCGB3rd Oct 2014
2001:67c:80::/4865.5k × /64RIPE NCCGB1st Apr 2015
2001:67c:90::/4865.5k × /64RIPE NCCGB28th Oct 2009
2001:67c:a24::/4865.5k × /64RIPE NCCGB27th Jun 2022
2001:67c:b1c::/4865.5k × /64RIPE NCCGB1st Jul 2026
2001:67c:b6c::/4865.5k × /64RIPE NCCGB10th Feb 2025
2001:67c:e24::/4865.5k × /64RIPE NCCGB1st Mar 2024
2001:67c:f60::/4865.5k × /64RIPE NCCGB30th Oct 2024
2001:7f8:113::/4865.5k × /64RIPE NCCGB7th Jun 2021
2001:7f8:123::/4865.5k × /64RIPE NCCGB4th Feb 2022
2001:7f8:132::/4865.5k × /64RIPE NCCGB18th Nov 2024
2001:7f8:147::/4865.5k × /64RIPE NCCGB1st Feb 2024
2001:7f8:14b::/4865.5k × /64RIPE NCCGB12th Jun 2023
2001:7f8:153::/4865.5k × /64RIPE NCCGB8th Feb 2024
2001:7f8:17::/4865.5k × /64RIPE NCCGB27th Mar 2003
2001:7f8:1a::/4865.5k × /64RIPE NCCGB13th Oct 2026
2001:7f8:34::/4865.5k × /64RIPE NCCGB27th Nov 2020
2001:7f8:3::/4865.5k × /64RIPE NCCGB13th Sept 2001
2001:7f8:4::/4865.5k × /64RIPE NCCGB13th Sept 2001
2001:7f8:52::/4865.5k × /64RIPE NCCGB25th Feb 2026
2001:7f8:67::/4865.5k × /64RIPE NCCGB13th Dec 2011
2001:7f8:8c::/4865.5k × /64RIPE NCCGB13th Oct 2015
2001:7f8:90::/4865.5k × /64RIPE NCCGB21st Nov 2014
2001:7f8:a2::/4865.5k × /64RIPE NCCGB17th May 2016
2001:7f8:aa::/4865.5k × /64RIPE NCCGB31st Aug 2026
2001:7f8:bc::/4865.5k × /64RIPE NCCGB2nd Nov 2017
2001:7f8:be::/4865.5k × /64RIPE NCCGB17th Nov 2017
2001:7f8:da::/4865.5k × /64RIPE NCCGB11th Mar 2020
2001:7f8:dc::/4865.5k × /64RIPE NCCGB26th Aug 2019
2001:7f8:ec::/4865.5k × /64RIPE NCCGB20th Feb 2026
2001:7f8:fc::/4865.5k × /64RIPE NCCGB20th Nov 2025
2001:958::/324.3B × /64RIPE NCCGB18th Oct 2002
201.51.64.0/1816.4kRIPE NCCGB6th Mar 2025
201.58.0.0/1816.4kRIPE NCCGB6th Mar 2025
203.12.218.0/24256RIPE NCCGB16th Feb 1995
204.137.24.0/23512RIPE NCCGB29th Aug 1994
204.62.218.0/24256RIPE NCCGB10th Aug 1994
205.178.176.0/24256RIPE NCCGB30th Mar 2021
205.210.40.0/24256RIPE NCCGB8th Apr 1995