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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,356 blocks match, ordered by prefix.

Allocated but unannounced blocks, 37801 to 37850 of 85356
PrefixAddressesRegistryCountryAllocated
2001:df0:48c0::/4865.5k × /64APNICBD7th Jan 2022
2001:df0:4900::/4865.5k × /64APNICIN8th Feb 2017
2001:df0:4980::/4865.5k × /64APNICSG1st May 2019
2001:df0:49::/4865.5k × /64APNICAU15th Jun 2009
2001:df0:49c0::/4865.5k × /64APNICBD10th Jan 2022
2001:df0:4::/4865.5k × /64APNICNZ22nd Aug 2007
2001:df0:4a80::/4865.5k × /64APNICBD1st May 2019
2001:df0:4a::/4865.5k × /64APNICNZ23rd Jun 2009
2001:df0:4ac0::/4865.5k × /64APNICSG11th Jan 2022
2001:df0:4b80::/4865.5k × /64APNICLK1st May 2019
2001:df0:4bc0::/4865.5k × /64APNICBD12th Jan 2022
2001:df0:4c0::/4865.5k × /64APNICBD8th Nov 2021
2001:df0:4c40::/4865.5k × /64APNICBD12th Jan 2022
2001:df0:4c80::/4865.5k × /64APNICSG1st May 2019
2001:df0:4c::/4865.5k × /64APNICAU24th Aug 2009
2001:df0:4cc0::/4865.5k × /64APNICBD13th Jan 2022
2001:df0:4d00::/4865.5k × /64APNICID9th Feb 2017
2001:df0:4d80::/4865.5k × /64APNICPH2nd May 2019
2001:df0:4d::/4865.5k × /64APNICAU8th Sept 2009
2001:df0:4dc0::/4865.5k × /64APNICID13th Jan 2022
2001:df0:4ec0::/4865.5k × /64APNICIN14th Jan 2022
2001:df0:4f80::/4865.5k × /64APNICBD2nd May 2019
2001:df0:500::/4016.8M × /64APNICAU13th Aug 2012
2001:df0:5040::/4865.5k × /64APNICIN17th Jan 2022
2001:df0:5080::/4865.5k × /64APNICKH3rd May 2019
2001:df0:50::/441M × /64APNICAU26th Feb 2009
2001:df0:50c0::/4865.5k × /64APNICVN17th Jan 2022
2001:df0:5100::/4865.5k × /64APNICPK13th Feb 2017
2001:df0:5140::/4865.5k × /64APNICVN17th Jan 2022
2001:df0:5180::/4865.5k × /64APNICPH3rd May 2019
2001:df0:51c0::/4865.5k × /64APNICIN17th Jan 2022
2001:df0:5200::/4865.5k × /64APNICIN14th Jan 2016
2001:df0:5280::/4865.5k × /64APNICBD3rd May 2019
2001:df0:52c0::/4865.5k × /64APNICBD18th Jan 2022
2001:df0:5340::/4865.5k × /64APNICHK19th Jan 2022
2001:df0:5380::/4865.5k × /64APNICID3rd May 2019
2001:df0:53c0::/4865.5k × /64APNICBD19th Jan 2022
2001:df0:5440::/4865.5k × /64APNICPK19th Jan 2022
2001:df0:5480::/4865.5k × /64APNICID3rd May 2019
2001:df0:5500::/4865.5k × /64APNICDE14th Feb 2017
2001:df0:5540::/4865.5k × /64APNICIN20th Jan 2022
2001:df0:5580::/4865.5k × /64APNICAU7th May 2019
2001:df0:55c0::/4865.5k × /64APNICHK21st Jan 2022
2001:df0:5640::/4865.5k × /64APNICMY21st Jan 2022
2001:df0:5680::/4865.5k × /64APNICID7th May 2019
2001:df0:56c0::/4865.5k × /64APNICIN21st Jan 2022
2001:df0:5700::/4865.5k × /64APNICNZ15th Feb 2017
2001:df0:5780::/4865.5k × /64APNICIN7th May 2019
2001:df0:57c0::/4865.5k × /64APNICIN24th Jan 2022
2001:df0:5800::/4865.5k × /64APNICID19th Nov 2013