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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,075 blocks match, ordered by prefix.

Allocated but unannounced blocks, 73251 to 73300 of 85075
PrefixAddressesRegistryCountryAllocated
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
2a0b:4980::/2934.4B × /64RIPE NCCTR10th Jan 2017
2a0b:49c0::/2934.4B × /64RIPE NCCAT22nd Jun 2017
2a0b:4a00::/2934.4B × /64RIPE NCCIR9th Sept 2016
2a0b:4a80::/2934.4B × /64RIPE NCCES10th Jan 2017
2a0b:4ac0::/2934.4B × /64RIPE NCCFR22nd Jun 2017
2a0b:4b00::/2934.4B × /64RIPE NCCSE17th Oct 2016
2a0b:4b40::/324.3B × /64RIPE NCCES22nd Jun 2017
2a0b:4bc0::/2934.4B × /64RIPE NCCRU28th Jan 2022
2a0b:4c0::/2934.4B × /64RIPE NCCTR24th May 2017
2a0b:4cc0::/2934.4B × /64RIPE NCCDE22nd Jun 2017
2a0b:4dc0::/2934.4B × /64RIPE NCCLV22nd Jun 2017
2a0b:4e40::/2934.4B × /64RIPE NCCCY3rd Jan 2020
2a0b:4e80::/2934.4B × /64RIPE NCCRU4th Aug 2025
2a0b:4ec0::/2934.4B × /64RIPE NCCRU27th Jul 2026
2a0b:4f40::/2934.4B × /64RIPE NCCDE23rd Jun 2017
2a0b:4f80::/2934.4B × /64RIPE NCCUZ16th Jan 2020
2a0b:5000::/2934.4B × /64RIPE NCCRO10th Aug 2016
2a0b:5040::/2934.4B × /64RIPE NCCGB27th Jul 2026
2a0b:5080::/2934.4B × /64RIPE NCCES11th Jan 2017
2a0b:5140::/2934.4B × /64RIPE NCCGB26th Jun 2017
2a0b:5180::/2934.4B × /64RIPE NCCTR26th Jan 2026
2a0b:5200::/2934.4B × /64RIPE NCCCH9th Sept 2016
2a0b:5280::/2934.4B × /64RIPE NCCTR12th Jan 2017
2a0b:5300::/2934.4B × /64RIPE NCCNL18th Oct 2016
2a0b:5380::/2934.4B × /64RIPE NCCTR16th Jan 2020
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