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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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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, 16801 to 16850 of 24875
PrefixAddressesRegistryCountryAllocated
2a0b:3280::/324.3B × /64RIPE NCCPL3rd Jan 2017
2a0b:3300::/2934.4B × /64RIPE NCCAE14th Oct 2016
2a0b:3400::/2934.4B × /64RIPE NCCGB22nd Aug 2016
2a0b:3440::/2934.4B × /64RIPE NCCIT14th Jun 2017
2a0b:3480::/2934.4B × /64RIPE NCCFI4th Jan 2017
2a0b:34c0::/2934.4B × /64RIPE NCCUA14th Jun 2017
2a0b:3500::/324.3B × /64RIPE NCCRU14th Oct 2016
2a0b:3640::/2934.4B × /64RIPE NCCSY27th Jul 2026
2a0b:3680::/2934.4B × /64RIPE NCCBG4th Jan 2017
2a0b:36c0::/2934.4B × /64RIPE NCCNL15th Jun 2017
2a0b:3740::/2934.4B × /64RIPE NCCGB15th Jun 2017
2a0b:3780::/324.3B × /64RIPE NCCES4th Jan 2017
2a0b:3800::/2934.4B × /64RIPE NCCUS12th Aug 2016
2a0b:38c0::/2934.4B × /64RIPE NCCFR30th May 2022
2a0b:3940::/2934.4B × /64RIPE NCCDE15th Jun 2017
2a0b:39c0::/2934.4B × /64RIPE NCCIE15th Jun 2017
2a0b:3a40::/324.3B × /64RIPE NCCDE15th Jun 2017
2a0b:3a80::/324.3B × /64RIPE NCCES5th Jan 2017
2a0b:3ac0::/2934.4B × /64RIPE NCCPL15th Jun 2017
2a0b:3b80::/2934.4B × /64RIPE NCCRS5th Jan 2017
2a0b:3bc0::/324.3B × /64RIPE NCCUS16th Jun 2017
2a0b:3c0::/2934.4B × /64RIPE NCCRU15th Jan 2020
2a0b:3cc0::/2934.4B × /64RIPE NCCIR16th Jun 2017
2a0b:3d80::/2934.4B × /64RIPE NCCDE5th Jan 2017
2a0b:3e00::/2934.4B × /64RIPE NCCLT2nd May 2023
2a0b:3e40::/2934.4B × /64RIPE NCCGR16th Jun 2017
2a0b:3e80::/324.3B × /64RIPE NCCDE28th Jan 2022
2a0b:3ec0::/2934.4B × /64RIPE NCCLV19th Jun 2017
2a0b:3f00::/2934.4B × /64RIPE NCCIT17th Oct 2016
2a0b:3fc0::/2934.4B × /64RIPE NCCNL19th Jun 2017
2a0b:400::/2934.4B × /64RIPE NCCIT19th Aug 2016
2a0b:40c0::/2934.4B × /64RIPE NCCIL4th Jun 2021
2a0b:4100::/2934.4B × /64RIPE NCCCH17th Oct 2016
2a0b:4180::/2934.4B × /64RIPE NCCAE9th Jan 2017
2a0b:4240::/2934.4B × /64RIPE NCCES19th Jun 2017
2a0b:4280::/2934.4B × /64RIPE NCCCZ9th Jan 2017
2a0b:43c0::/2934.4B × /64RIPE NCCRU20th Jun 2017
2a0b:4400::/2934.4B × /64RIPE NCCDE22nd Aug 2016
2a0b:4440::/2934.4B × /64RIPE NCCEE20th Jun 2017
2a0b:4480::/2934.4B × /64RIPE NCCRO10th Jan 2017
2a0b:44c0::/2934.4B × /64RIPE NCCRU21st Jun 2017
2a0b:4500::/2934.4B × /64RIPE NCCSE17th Oct 2016
2a0b:45c0::/2934.4B × /64RIPE NCCES21st Jun 2017
2a0b:4600::/324.3B × /64RIPE NCCBE9th Sept 2016
2a0b:4640::/2934.4B × /64RIPE NCCIT21st Jun 2017
2a0b:46c0::/2934.4B × /64RIPE NCCIT1st Apr 2019
2a0b:4800::/2934.4B × /64RIPE NCCRU15th Aug 2016
2a0b:4840::/2934.4B × /64RIPE NCCDE21st Jun 2017
2a0b:48c0::/2934.4B × /64RIPE NCCEE22nd Jun 2017
2a0b:4900::/2934.4B × /64RIPE NCCBE1st Aug 2025