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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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.

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Countries with the most unannounced blocks, largest first.

Unannounced blocks in Russia

2,050 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1551 to 1600 of 2050
PrefixAddressesRegistryCountryAllocated
2a10:cf40::/2934.4B × /64RIPE NCCRU8th Apr 2021
2a10:cfc0::/2934.4B × /64RIPE NCCRU8th Apr 2021
2a10:d240::/2934.4B × /64RIPE NCCRU12th Apr 2021
2a10:d5c0::/2934.4B × /64RIPE NCCRU14th Apr 2021
2a10:d740::/2934.4B × /64RIPE NCCRU16th Feb 2026
2a10:df00::/2934.4B × /64RIPE NCCRU24th Nov 2020
2a10:e040::/2934.4B × /64RIPE NCCRU21st Apr 2021
2a10:ea80::/2934.4B × /64RIPE NCCRU21st Jan 2021
2a10:f440::/2934.4B × /64RIPE NCCRU5th May 2021
2a10:f640::/2934.4B × /64RIPE NCCRU6th May 2021
2a11:1380::/2934.4B × /64RIPE NCCRU11th Aug 2021
2a11:1480::/2934.4B × /64RIPE NCCRU12th Aug 2021
2a11:1540::/2934.4B × /64RIPE NCCRU14th Sept 2021
2a11:1940::/2934.4B × /64RIPE NCCRU14th Sept 2021
2a11:1a00::/2934.4B × /64RIPE NCCRU15th Jul 2021
2a11:1a40::/2934.4B × /64RIPE NCCRU14th Sept 2021
2a11:1a80::/2934.4B × /64RIPE NCCRU12th Aug 2021
2a11:1c00::/2934.4B × /64RIPE NCCRU8th Jul 2021
2a11:1f00::/2934.4B × /64RIPE NCCRU27th Jul 2021
2a11:2140::/2934.4B × /64RIPE NCCRU16th Sept 2021
2a11:2400::/2934.4B × /64RIPE NCCRU8th Jul 2021
2a11:2700::/2934.4B × /64RIPE NCCRU28th Jul 2021
2a11:2a40::/2934.4B × /64RIPE NCCRU20th Sept 2021
2a11:2c40::/2934.4B × /64RIPE NCCRU20th Sept 2021
2a11:300::/2934.4B × /64RIPE NCCRU16th Feb 2026
2a11:3440::/2934.4B × /64RIPE NCCRU21st Sept 2021
2a11:3ec0::/2934.4B × /64RIPE NCCRU23rd Sept 2021
2a11:3fc0::/2934.4B × /64RIPE NCCRU23rd Sept 2021
2a11:45c0::/2934.4B × /64RIPE NCCRU24th Sept 2021
2a11:4a40::/2934.4B × /64RIPE NCCRU27th Sept 2021
2a11:4a80::/2934.4B × /64RIPE NCCRU19th Aug 2021
2a11:4ac0::/2934.4B × /64RIPE NCCRU27th Sept 2021
2a11:6300::/2934.4B × /64RIPE NCCRU2nd Aug 2021
2a11:6d00::/2934.4B × /64RIPE NCCRU2nd Aug 2021
2a11:6e40::/2934.4B × /64RIPE NCCRU4th Oct 2021
2a11:700::/2934.4B × /64RIPE NCCRU12th May 2021
2a11:7140::/2934.4B × /64RIPE NCCRU4th Oct 2021
2a11:8780::/2934.4B × /64RIPE NCCRU24th Aug 2021
2a11:87c0::/2934.4B × /64RIPE NCCRU24th Nov 2025
2a11:91c0::/2934.4B × /64RIPE NCCRU8th Oct 2021
2a11:9380::/2934.4B × /64RIPE NCCRU25th Aug 2021
2a11:980::/2934.4B × /64RIPE NCCRU14th May 2021
2a11:9f40::/2934.4B × /64RIPE NCCRU13th Oct 2021
2a11:a80::/2934.4B × /64RIPE NCCRU14th May 2021
2a11:b80::/2934.4B × /64RIPE NCCRU14th May 2021
2a11:bc0::/2934.4B × /64RIPE NCCRU16th May 2024
2a11:d280::/2934.4B × /64RIPE NCCRU2nd Sept 2021
2a11:de00::/2934.4B × /64RIPE NCCRU23rd Jul 2021
2a11:e840::/3017.2B × /64RIPE NCCRU26th Oct 2021
2a11:f000::/2934.4B × /64RIPE NCCRU6th Jul 2021