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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

24,875 blocks match, ordered by prefix.

Allocated but unannounced blocks, 16351 to 16400 of 24875
PrefixAddressesRegistryCountryAllocated
2a0a:5100::/2934.4B × /64RIPE NCCFR26th Sept 2016
2a0a:5140::/2934.4B × /64RIPE NCCES16th Mar 2017
2a0a:5180::/2934.4B × /64RIPE NCCGB17th Nov 2016
2a0a:5200::/324.3B × /64RIPE NCCSE31st Aug 2016
2a0a:5240::/2934.4B × /64RIPE NCCIL16th Mar 2017
2a0a:5280::/2934.4B × /64RIPE NCCDE17th Nov 2016
2a0a:52c0::/2934.4B × /64RIPE NCCNL16th Mar 2017
2a0a:5300::/2934.4B × /64RIPE NCCGB26th Sept 2016
2a0a:5380::/2934.4B × /64RIPE NCCFI17th Nov 2016
2a0a:5440::/2934.4B × /64RIPE NCCNL16th Jul 2026
2a0a:5500::/2934.4B × /64RIPE NCCIT26th Sept 2016
2a0a:5540::/2934.4B × /64RIPE NCCIR20th Mar 2017
2a0a:55c0::/2934.4B × /64RIPE NCCUS20th Mar 2017
2a0a:5740::/2934.4B × /64RIPE NCCES20th Mar 2017
2a0a:57c0::/2934.4B × /64RIPE NCCDE15th Jul 2025
2a0a:580::/2934.4B × /64RIPE NCCDE2nd Nov 2016
2a0a:58c0::/2934.4B × /64RIPE NCCRU21st Mar 2017
2a0a:5940::/2934.4B × /64RIPE NCCGB21st Mar 2017
2a0a:5a40::/2934.4B × /64RIPE NCCGB21st Mar 2017
2a0a:5a80::/2934.4B × /64RIPE NCCFR18th Nov 2016
2a0a:5ac0::/324.3B × /64RIPE NCCIT21st Mar 2017
2a0a:5b00::/2934.4B × /64RIPE NCCPT26th Sept 2016
2a0a:5b80::/2934.4B × /64RIPE NCCIT18th Nov 2016
2a0a:5c00::/2934.4B × /64RIPE NCCES17th Aug 2016
2a0a:5cc0::/2934.4B × /64RIPE NCCRU21st Mar 2017
2a0a:5d00::/324.3B × /64RIPE NCCNO26th Sept 2016
2a0a:5d80::/2934.4B × /64RIPE NCCUS16th Jul 2025
2a0a:5e00::/2934.4B × /64RIPE NCCES31st Aug 2016
2a0a:5f00::/2934.4B × /64RIPE NCCIE26th Sept 2016
2a0a:5f80::/2934.4B × /64RIPE NCCIR18th Nov 2016
2a0a:5fc0::/2934.4B × /64RIPE NCCES25th Aug 2020
2a0a:6080::/2934.4B × /64RIPE NCCRU21st Nov 2016
2a0a:6100::/2934.4B × /64RIPE NCCIN26th Sept 2016
2a0a:6140::/2934.4B × /64RIPE NCCNL23rd Mar 2017
2a0a:6180::/2934.4B × /64RIPE NCCFR21st Nov 2016
2a0a:61c0::/2934.4B × /64RIPE NCCTR23rd Mar 2017
2a0a:6240::/2934.4B × /64RIPE NCCIT29th Mar 2019
2a0a:6300::/2934.4B × /64RIPE NCCIN26th Sept 2016
2a0a:63c0::/2934.4B × /64RIPE NCCDE23rd Mar 2017
2a0a:640::/2934.4B × /64RIPE NCCGB11th Jul 2025
2a0a:6440::/2934.4B × /64RIPE NCCAT9th Sept 2021
2a0a:6480::/2934.4B × /64RIPE NCCMD21st Nov 2016
2a0a:6500::/2934.4B × /64RIPE NCCRO3rd Jan 2020
2a0a:6540::/2934.4B × /64RIPE NCCES23rd Mar 2017
2a0a:65c0::/2934.4B × /64RIPE NCCIT16th Jul 2025
2a0a:6600::/2934.4B × /64RIPE NCCGB1st Sept 2016
2a0a:6640::/2934.4B × /64RIPE NCCIT23rd Mar 2017
2a0a:66c0::/324.3B × /64RIPE NCCHU23rd Mar 2017
2a0a:6740::/2934.4B × /64RIPE NCCBG23rd Mar 2017
2a0a:6800::/2934.4B × /64RIPE NCCFI11th Aug 2016