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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 2151 to 2200 of 2577
PrefixAddressesRegistryCountryAllocated
2a11:60c0::/2934.4B × /64RIPE NCCGB1st Oct 2021
2a11:7840::/2934.4B × /64RIPE NCCGB5th Oct 2021
2a11:7b40::/2934.4B × /64RIPE NCCGB24th Nov 2025
2a11:9840::/2934.4B × /64RIPE NCCGB11th Oct 2021
2a11:9d00::/2934.4B × /64RIPE NCCGB5th Aug 2021
2a11:d540::/2934.4B × /64RIPE NCCGB22nd Oct 2021
2a11:d5c0::/2934.4B × /64RIPE NCCGB22nd Oct 2021
2a11:e00::/2934.4B × /64RIPE NCCGB8th Feb 2024
2a11:f440::/2934.4B × /64RIPE NCCGB27th Oct 2021
2a11:fd00::/2934.4B × /64RIPE NCCGB11th Aug 2021
2a12:1380::/2934.4B × /64RIPE NCCGB19th Nov 2021
2a12:2080::/2934.4B × /64RIPE NCCGB19th Nov 2021
2a12:3680::/324.3B × /64RIPE NCCGB22nd Nov 2021
2a12:3e00::/2934.4B × /64RIPE NCCGB4th Nov 2021
2a12:43c0::/2934.4B × /64RIPE NCCGB6th Jan 2022
2a12:50c0::/2934.4B × /64RIPE NCCGB11th Jan 2022
2a12:6340::/2934.4B × /64RIPE NCCGB24th Jan 2022
2a12:7b40::/2934.4B × /64RIPE NCCGB15th Feb 2022
2a12:88c0::/2934.4B × /64RIPE NCCGB22nd Feb 2022
2a12:9140::/2934.4B × /64RIPE NCCGB30th Oct 2026
2a12:9540::/2934.4B × /64RIPE NCCGB7th Mar 2022
2a12:9c40::/2934.4B × /64RIPE NCCGB10th Mar 2022
2a12:a40::/2934.4B × /64RIPE NCCGB11th Dec 2025
2a12:c200::/2934.4B × /64RIPE NCCGB8th Nov 2021
2a12:c9c0::/324.3B × /64RIPE NCCGB12th Apr 2022
2a12:ca00::/2934.4B × /64RIPE NCCGB8th Nov 2021
2a12:cb80::/2934.4B × /64RIPE NCCGB1st Dec 2021
2a12:cfc0::/2934.4B × /64RIPE NCCGB21st Apr 2022
2a12:d0c0::/2934.4B × /64RIPE NCCGB4th Nov 2026
2a12:d240::/2934.4B × /64RIPE NCCGB22nd Apr 2022
2a12:d80::/2934.4B × /64RIPE NCCGB18th Nov 2021
2a12:df00::/2934.4B × /64RIPE NCCGB5th Nov 2026
2a12:eb80::/2934.4B × /64RIPE NCCGB3rd Dec 2021
2a12:fac0::/324.3B × /64RIPE NCCGB12th Mar 2026
2a13:1040::/2934.4B × /64RIPE NCCGB24th Oct 2022
2a13:1100::/2934.4B × /64RIPE NCCGB29th Jun 2022
2a13:1500::/2934.4B × /64RIPE NCCGB29th Jun 2022
2a13:1d40::/2934.4B × /64RIPE NCCGB4th Nov 2022
2a13:2740::/2934.4B × /64RIPE NCCGB10th Nov 2022
2a13:2b00::/2934.4B × /64RIPE NCCGB4th Jul 2022
2a13:2b80::/2934.4B × /64RIPE NCCGB18th Aug 2022
2a13:3800::/2934.4B × /64RIPE NCCGB7th Jun 2022
2a13:4240::/2934.4B × /64RIPE NCCGB25th Nov 2022
2a13:52c0::/2934.4B × /64RIPE NCCGB6th Dec 2022
2a13:6500::/2934.4B × /64RIPE NCCGB20th Jul 2022
2a13:6a00::/2934.4B × /64RIPE NCCGB24th Jun 2022
2a13:6d00::/324.3B × /64RIPE NCCGB22nd Jul 2022
2a13:7040::/2934.4B × /64RIPE NCCGB27th Dec 2022
2a13:7a00::/2934.4B × /64RIPE NCCGB27th Jun 2022
2a13:7ec0::/2934.4B × /64RIPE NCCGB9th Jun 2023