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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

25,312 blocks match, ordered by prefix.

Allocated but unannounced blocks, 17201 to 17250 of 25312
PrefixAddressesRegistryCountryAllocated
2a0b:540::/2934.4B × /64RIPE NCCPL24th May 2017
2a0b:5440::/2934.4B × /64RIPE NCCAE20th Apr 2026
2a0b:54c0::/2934.4B × /64RIPE NCCGB4th Apr 2018
2a0b:5500::/2934.4B × /64RIPE NCCAT18th Oct 2016
2a0b:55c0::/2934.4B × /64RIPE NCCCH27th Jun 2017
2a0b:5640::/2934.4B × /64RIPE NCCCH27th Jun 2017
2a0b:5680::/2934.4B × /64RIPE NCCRU13th Jan 2017
2a0b:5700::/2934.4B × /64RIPE NCCAT18th Oct 2016
2a0b:57c0::/2934.4B × /64RIPE NCCNL27th Jun 2017
2a0b:580::/324.3B × /64RIPE NCCRU20th Dec 2016
2a0b:5840::/2934.4B × /64RIPE NCCDK28th Jun 2017
2a0b:5880::/2934.4B × /64RIPE NCCGB13th Jan 2017
2a0b:5940::/2934.4B × /64RIPE NCCDE28th Jun 2017
2a0b:5980::/2934.4B × /64RIPE NCCGR13th Jan 2017
2a0b:59c0::/2934.4B × /64RIPE NCCGB28th Jun 2017
2a0b:5a00::/2934.4B × /64RIPE NCCIR12th Sept 2016
2a0b:5b00::/2934.4B × /64RIPE NCCIL27th Jan 2026
2a0b:5b40::/2934.4B × /64RIPE NCCDE28th Jun 2017
2a0b:5b80::/2934.4B × /64RIPE NCCGB13th Jan 2017
2a0b:5bc0::/2934.4B × /64RIPE NCCIE28th Jun 2017
2a0b:5c00::/2934.4B × /64RIPE NCCRU10th Jun 2020
2a0b:5c0::/2934.4B × /64RIPE NCCGB26th May 2017
2a0b:5c40::/2934.4B × /64RIPE NCCSE29th Jun 2017
2a0b:5cc0::/2934.4B × /64RIPE NCCHR28th Jul 2026
2a0b:5d80::/2934.4B × /64RIPE NCCIQ13th Jan 2017
2a0b:5e80::/2934.4B × /64RIPE NCCLB16th Jan 2017
2a0b:5f80::/2934.4B × /64RIPE NCCCW16th Jan 2017
2a0b:5fc0::/2934.4B × /64RIPE NCCRU30th Jun 2017
2a0b:600::/324.3B × /64RIPE NCCNO6th Sept 2016
2a0b:6040::/324.3B × /64RIPE NCCDE30th Jun 2017
2a0b:6080::/2934.4B × /64RIPE NCCDE16th Jan 2017
2a0b:6100::/2934.4B × /64RIPE NCCFR7th Aug 2025
2a0b:6180::/2934.4B × /64RIPE NCCDE16th Jan 2017
2a0b:61c0::/324.3B × /64RIPE NCCGB30th Jun 2017
2a0b:6280::/2934.4B × /64RIPE NCCCH16th Jan 2017
2a0b:62c0::/2934.4B × /64RIPE NCCSK30th Jun 2017
2a0b:63c0::/2934.4B × /64RIPE NCCES4th Jun 2021
2a0b:6400::/2934.4B × /64RIPE NCCFR22nd Aug 2016
2a0b:6480::/2934.4B × /64RIPE NCCGB16th Jan 2017
2a0b:6500::/2934.4B × /64RIPE NCCDE19th Oct 2016
2a0b:6540::/2934.4B × /64RIPE NCCUS4th Jul 2017
2a0b:6680::/324.3B × /64RIPE NCCGB16th Jan 2017
2a0b:66c0::/324.3B × /64RIPE NCCRU5th Jul 2017
2a0b:6740::/2934.4B × /64RIPE NCCGB21st Mar 2024
2a0b:6780::/2934.4B × /64RIPE NCCTR16th Jan 2017
2a0b:67c0::/2934.4B × /64RIPE NCCIT27th Jan 2026
2a0b:6840::/2934.4B × /64RIPE NCCES5th Jul 2017
2a0b:68c0::/2934.4B × /64RIPE NCCNL5th Jul 2017
2a0b:6a40::/2934.4B × /64RIPE NCCNL6th Jul 2017
2a0b:6a80::/2934.4B × /64RIPE NCCUA16th Jan 2017