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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.

Unannounced blocks

85,356 blocks match, ordered by prefix.

Allocated but unannounced blocks, 39701 to 39750 of 85356
PrefixAddressesRegistryCountryAllocated
2001:df3:2cc0::/4865.5k × /64APNICIN22nd Nov 2023
2001:df3:2d00::/4865.5k × /64APNICVN23rd Nov 2017
2001:df3:2d40::/4865.5k × /64APNICAU23rd Nov 2023
2001:df3:2d80::/4865.5k × /64APNICHK17th Mar 2020
2001:df3:2dc0::/4865.5k × /64APNICBD23rd Nov 2023
2001:df3:2ec0::/4865.5k × /64APNICBD23rd Nov 2023
2001:df3:2f00::/4865.5k × /64APNICAU24th Nov 2017
2001:df3:2f40::/4865.5k × /64APNICMN24th Nov 2023
2001:df3:2f80::/4865.5k × /64APNICAU18th Mar 2020
2001:df3:2fc0::/4865.5k × /64APNICBD27th Nov 2023
2001:df3:3000::/4865.5k × /64APNICIN9th Sept 2013
2001:df3:300::/4865.5k × /64APNICMV2nd Nov 2017
2001:df3:3040::/4865.5k × /64APNICHK27th Nov 2023
2001:df3:30c0::/4865.5k × /64APNICBD27th Nov 2023
2001:df3:3100::/4865.5k × /64APNICAU24th Nov 2017
2001:df3:3141::/4865.5k × /64APNICBD17th Mar 2025
2001:df3:31c0::/4865.5k × /64APNICAF27th Nov 2023
2001:df3:3240::/4865.5k × /64APNICPH27th Nov 2023
2001:df3:3280::/4865.5k × /64APNICID18th Mar 2020
2001:df3:32c0::/47131k × /64APNICNZ27th Nov 2023
2001:df3:3300::/4865.5k × /64APNICSG24th Nov 2017
2001:df3:3340::/4865.5k × /64APNICBD28th Nov 2023
2001:df3:3380::/4865.5k × /64APNICPK18th Mar 2020
2001:df3:33c0::/4865.5k × /64APNICIN28th Nov 2023
2001:df3:3400::/4865.5k × /64APNICBD19th Mar 2015
2001:df3:340::/4865.5k × /64APNICAU8th Oct 2023
2001:df3:3440::/4865.5k × /64APNICIN28th Nov 2023
2001:df3:3480::/4865.5k × /64APNICID19th Mar 2020
2001:df3:34c0::/4865.5k × /64APNICID29th Nov 2023
2001:df3:3500::/4865.5k × /64APNICSE24th Nov 2017
2001:df3:3540::/4865.5k × /64APNICID29th Nov 2023
2001:df3:3580::/4865.5k × /64APNICID19th Mar 2020
2001:df3:35c0::/4865.5k × /64APNICID29th Nov 2023
2001:df3:3600::/47131k × /64APNICIN15th Jul 2016
2001:df3:3640::/4865.5k × /64APNICID29th Nov 2023
2001:df3:3680::/4865.5k × /64APNICHK19th Mar 2020
2001:df3:36c0::/4865.5k × /64APNICPH29th Nov 2023
2001:df3:3740::/4865.5k × /64APNICIN29th Nov 2023
2001:df3:3780::/4865.5k × /64APNICBD20th Mar 2020
2001:df3:37c0::/4865.5k × /64APNICIN29th Nov 2023
2001:df3:3800::/4865.5k × /64APNICID28th Feb 2014
2001:df3:3840::/4865.5k × /64APNICIN29th Nov 2023
2001:df3:38c0::/4865.5k × /64APNICPH30th Nov 2023
2001:df3:3900::/4865.5k × /64APNICID25th Nov 2017
2001:df3:3940::/4865.5k × /64APNICVN30th Nov 2023
2001:df3:39c0::/4865.5k × /64APNICPH30th Nov 2023
2001:df3:3ac0::/4865.5k × /64APNICBD30th Nov 2023
2001:df3:3b00::/4865.5k × /64APNICID25th Nov 2017
2001:df3:3b80::/4865.5k × /64APNICAU23rd Mar 2020
2001:df3:3bc0::/4865.5k × /64APNICBD30th Nov 2023