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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

599 blocks match, ordered by prefix.

Allocated but unannounced blocks, 451 to 500 of 599
PrefixAddressesRegistryCountryAllocated
2a0e:bd00::/2934.4B × /64RIPE NCCUS2nd May 2019
2a0e:c340::/2934.4B × /64RIPE NCCUS13th Aug 2019
2a0e:d6c0::/324.3B × /64RIPE NCCUS21st Oct 2025
2a0e:d980::/2934.4B × /64RIPE NCCUS11th Jun 2019
2a0e:e800::/2934.4B × /64RIPE NCCUS4th Apr 2019
2a0f:47c0::/2934.4B × /64RIPE NCCUS1st Nov 2019
2a0f:4cc0::/2934.4B × /64RIPE NCCUS4th Nov 2019
2a0f:5f80::/324.3B × /64RIPE NCCUS27th Sept 2019
2a0f:6f00::/2934.4B × /64RIPE NCCUS12th Sept 2019
2a0f:7e80::/2934.4B × /64RIPE NCCUS1st Oct 2019
2a0f:7f80::/2934.4B × /64RIPE NCCUS1st Oct 2019
2a0f:8080::/2934.4B × /64RIPE NCCUS1st Oct 2019
2a0f:8ac0::/2934.4B × /64RIPE NCCUS15th Nov 2019
2a0f:c3c0::/2934.4B × /64RIPE NCCUS27th Nov 2019
2a0f:d700::/2934.4B × /64RIPE NCCUS17th Sept 2019
2a0f:d800::/2934.4B × /64RIPE NCCUS30th Aug 2019
2a0f:d900::/2934.4B × /64RIPE NCCUS17th Sept 2019
2a0f:f880::/2934.4B × /64RIPE NCCUS17th Oct 2019
2a10:1cc0::/2934.4B × /64RIPE NCCUS27th Mar 2020
2a10:3680::/2934.4B × /64RIPE NCCUS2nd Mar 2020
2a10:3b00::/2934.4B × /64RIPE NCCUS11th Feb 2020
2a10:4fc0::/2934.4B × /64RIPE NCCUS18th Aug 2020
2a10:5580::/2934.4B × /64RIPE NCCUS21st Apr 2020
2a10:a340::/2934.4B × /64RIPE NCCUS4th Mar 2021
2a10:c640::/324.3B × /64RIPE NCCUS30th Mar 2021
2a10:d500::/2934.4B × /64RIPE NCCUS23rd Nov 2020
2a10:e980::/2934.4B × /64RIPE NCCUS30th Dec 2021
2a11:4280::/2934.4B × /64RIPE NCCUS18th Aug 2021
2a11:e400::/2934.4B × /64RIPE NCCUS14th Jul 2021
2a11:f640::/324.3B × /64RIPE NCCUS28th Oct 2021
2a11:fb00::/2934.4B × /64RIPE NCCUS11th Aug 2021
2a12:1840::/2934.4B × /64RIPE NCCUS21st Dec 2021
2a12:45c0::/2934.4B × /64RIPE NCCUS7th Jan 2022
2a12:540::/2934.4B × /64RIPE NCCUS13th Dec 2021
2a12:6880::/2934.4B × /64RIPE NCCUS30th Jun 2025
2a12:7340::/2934.4B × /64RIPE NCCUS11th Feb 2022
2a12:a6c0::/2934.4B × /64RIPE NCCUS14th Mar 2022
2a12:a740::/2934.4B × /64RIPE NCCUS14th Mar 2022
2a12:ad40::/2934.4B × /64RIPE NCCUS17th Mar 2022
2a13:11c0::/324.3B × /64RIPE NCCUS24th Oct 2022
2a13:5880::/2934.4B × /64RIPE NCCUS5th Sept 2022
2a13:5bc0::/2934.4B × /64RIPE NCCUS13th Dec 2022
2a13:e380::/2934.4B × /64RIPE NCCUS29th Mar 2023
2a14:2500::/2934.4B × /64RIPE NCCUS7th Nov 2023
2a14:2700::/2934.4B × /64RIPE NCCUS7th Nov 2023
2a14:2b00::/2934.4B × /64RIPE NCCUS7th Nov 2023
2a14:2d00::/2934.4B × /64RIPE NCCUS7th Nov 2023
2a14:2f00::/2934.4B × /64RIPE NCCUS7th Nov 2023
2a14:3300::/2934.4B × /64RIPE NCCUS7th Nov 2023
2a14:3440::/2934.4B × /64RIPE NCCUS4th Apr 2024