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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.

Unannounced blocks in United Kingdom

2,663 blocks match, ordered by prefix.

Allocated but unannounced blocks, 2151 to 2200 of 2663
PrefixAddressesRegistryCountryAllocated
2a0e:65c0::/2934.4B × /64RIPE NCCGB22nd Jul 2019
2a0e:7240::/2934.4B × /64RIPE NCCGB24th Jul 2019
2a0e:8280::/2934.4B × /64RIPE NCCGB28th May 2019
2a0e:9380::/2934.4B × /64RIPE NCCGB31st May 2019
2a0e:9a00::/2934.4B × /64RIPE NCCGB16th Apr 2019
2a0e:9e40::/324.3B × /64RIPE NCCGB2nd Aug 2019
2a0e:c640::/2934.4B × /64RIPE NCCGB13th Aug 2019
2a0e:e340::/2934.4B × /64RIPE NCCGB20th Aug 2019
2a0e:e40::/2934.4B × /64RIPE NCCGB27th Jun 2019
2a0e:edc0::/2934.4B × /64RIPE NCCGB22nd Aug 2019
2a0e:f100::/2934.4B × /64RIPE NCCGB6th May 2019
2a0e:f640::/324.3B × /64RIPE NCCGB21st Oct 2025
2a0e:f940::/2934.4B × /64RIPE NCCGB26th Aug 2019
2a0f:1a80::/2934.4B × /64RIPE NCCGB20th Sept 2019
2a0f:1f00::/2934.4B × /64RIPE NCCGB10th Sept 2019
2a0f:2d00::/324.3B × /64RIPE NCCGB10th Sept 2019
2a0f:2f00::/2934.4B × /64RIPE NCCGB10th Sept 2019
2a0f:3c0::/2934.4B × /64RIPE NCCGB23rd Oct 2019
2a0f:6080::/2934.4B × /64RIPE NCCGB27th Sept 2019
2a0f:66c0::/324.3B × /64RIPE NCCGB11th Nov 2019
2a0f:6e80::/324.3B × /64RIPE NCCGB30th Sept 2019
2a0f:80c0::/2934.4B × /64RIPE NCCGB14th Nov 2019
2a0f:8500::/2934.4B × /64RIPE NCCGB29th Oct 2025
2a0f:8640::/2934.4B × /64RIPE NCCGB15th Nov 2019
2a0f:9700::/2934.4B × /64RIPE NCCGB16th Sept 2019
2a0f:9a00::/2934.4B × /64RIPE NCCGB5th Sept 2019
2a0f:a340::/2934.4B × /64RIPE NCCGB20th Nov 2019
2a0f:a80::/3017.2B × /64RIPE NCCGB19th Sept 2019
2a0f:a980::/2934.4B × /64RIPE NCCGB7th Oct 2019
2a0f:bb40::/2934.4B × /64RIPE NCCGB25th Nov 2019
2a0f:bd40::/2934.4B × /64RIPE NCCGB26th Nov 2019
2a0f:bdc0::/2934.4B × /64RIPE NCCGB26th Nov 2019
2a0f:be40::/2934.4B × /64RIPE NCCGB26th Nov 2019
2a0f:db00::/2934.4B × /64RIPE NCCGB17th Sept 2019
2a0f:f2c0::/2934.4B × /64RIPE NCCGB17th Dec 2019
2a0f:f700::/324.3B × /64RIPE NCCGB18th Sept 2019
2a0f:fe00::/2934.4B × /64RIPE NCCGB9th Sept 2019
2a10:1d40::/324.3B × /64RIPE NCCGB30th Mar 2020
2a10:23c0::/324.3B × /64RIPE NCCGB3rd Apr 2020
2a10:2540::/2934.4B × /64RIPE NCCGB6th Apr 2020
2a10:2c00::/324.3B × /64RIPE NCCGB28th Jan 2020
2a10:2ec0::/2934.4B × /64RIPE NCCGB14th Apr 2020
2a10:4840::/2934.4B × /64RIPE NCCGB11th Aug 2020
2a10:5440::/2934.4B × /64RIPE NCCGB21st Aug 2020
2a10:55c0::/2934.4B × /64RIPE NCCGB25th Aug 2020
2a10:6440::/2934.4B × /64RIPE NCCGB16th Sept 2020
2a10:6940::/2934.4B × /64RIPE NCCGB17th Sept 2020
2a10:7780::/2934.4B × /64RIPE NCCGB23rd Apr 2020
2a10:7c0::/2934.4B × /64RIPE NCCGB4th Oct 2022
2a10:85c0::/2934.4B × /64RIPE NCCGB8th Feb 2021