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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,239 blocks match, ordered by prefix.

Allocated but unannounced blocks, 64751 to 64800 of 85239
PrefixAddressesRegistryCountryAllocated
2801:a8::/324.3B × /64LACNICBR11th Nov 2011
2801:aa::/324.3B × /64LACNICBR12th Mar 2012
2801:ac::/324.3B × /64LACNICBR15th Mar 2012
2801:b2::/324.3B × /64LACNICBR4th Jun 2012
2801:b4::/324.3B × /64LACNICBR6th Jun 2012
2801:ba::/324.3B × /64LACNICBR26th Apr 2013
2801:c4:13::/4865.5k × /64LACNICMX11th Aug 2017
2801:c4:14::/4865.5k × /64LACNICMX10th Mar 2016
2801:c4:15::/4865.5k × /64LACNICMX20th Jun 2016
2801:c4:17::/4865.5k × /64LACNICMX12th Oct 2016
2801:c4:1a::/4865.5k × /64LACNICMX15th Dec 2017
2801:c4:1c::/4865.5k × /64LACNICMX9th Feb 2018
2801:c4:1f::/4865.5k × /64LACNICMX21st Nov 2018
2801:c4:200::/441M × /64LACNICMX7th Sept 2023
2801:c4:210::/4865.5k × /64LACNICMX19th Jul 2024
2801:c4:211::/4865.5k × /64LACNICMX7th Nov 2023
2801:c4:213::/4865.5k × /64LACNICMX28th Sept 2023
2801:c4:216::/4865.5k × /64LACNICMX17th May 2024
2801:c4:21::/4865.5k × /64LACNICMX29th Jan 2019
2801:c4:230::/441M × /64LACNICMX25th Nov 2024
2801:c4:23::/4865.5k × /64LACNICMX12th Mar 2019
2801:c4:240::/441M × /64LACNICMX18th Aug 2023
2801:c4:24::/4865.5k × /64LACNICMX21st Jun 2019
2801:c4:251::/4865.5k × /64LACNICMX28th Sept 2023
2801:c4:255::/4865.5k × /64LACNICMX27th Apr 2024
2801:c4:259::/4865.5k × /64LACNICMX24th Aug 2023
2801:c4:25a::/4865.5k × /64LACNICMX31st Oct 2023
2801:c4:25b::/4865.5k × /64LACNICMX8th Dec 2023
2801:c4:25c::/4865.5k × /64LACNICMX2nd Nov 2023
2801:c4:25f::/4865.5k × /64LACNICMX10th Nov 2023
2801:c4:260::/441M × /64LACNICMX8th Nov 2023
2801:c4:270::/4865.5k × /64LACNICMX13th Oct 2023
2801:c4:271::/4865.5k × /64LACNICMX13th Oct 2023
2801:c4:278::/4865.5k × /64LACNICMX31st Aug 2023
2801:c4:279::/4865.5k × /64LACNICMX9th Oct 2023
2801:c4:27::/4865.5k × /64LACNICMX27th Dec 2019
2801:c4:27c::/4865.5k × /64LACNICMX22nd Aug 2025
2801:c4:27f::/4865.5k × /64LACNICMX2nd Nov 2023
2801:c4:280::/441M × /64LACNICMX4th Oct 2023
2801:c4:291::/4865.5k × /64LACNICMX16th Oct 2024
2801:c4:293::/4865.5k × /64LACNICMX29th May 2024
2801:c4:298::/4865.5k × /64LACNICMX15th Dec 2023
2801:c4:29::/4865.5k × /64LACNICMX26th Aug 2020
2801:c4:29c::/46262k × /64LACNICMX27th May 2024
2801:c4:2a0::/4865.5k × /64LACNICMX13th May 2024
2801:c4:2a2::/4865.5k × /64LACNICMX13th Feb 2024
2801:c4:2a4::/4865.5k × /64LACNICMX10th Jan 2024
2801:c4:2a5::/4865.5k × /64LACNICMX28th May 2024
2801:c4:2a6::/4865.5k × /64LACNICMX28th May 2024
2801:c4:2a::/4865.5k × /64LACNICMX9th Sept 2020