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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 37701 to 37750 of 85356
PrefixAddressesRegistryCountryAllocated
2001:df0:3380::/4865.5k × /64APNICIN16th Apr 2019
2001:df0:33c0::/4865.5k × /64APNICSG16th Dec 2021
2001:df0:3480::/4865.5k × /64APNICKH16th Apr 2019
2001:df0:3500::/4865.5k × /64APNICID31st Jan 2017
2001:df0:3540::/4865.5k × /64APNICBD20th Dec 2021
2001:df0:3580::/4865.5k × /64APNICAU17th Apr 2019
2001:df0:3600::/4865.5k × /64APNICSG6th Jan 2016
2001:df0:3640::/4865.5k × /64APNICBD20th Dec 2021
2001:df0:3680::/4865.5k × /64APNICID18th Apr 2019
2001:df0:36c0::/4865.5k × /64APNICBD20th Dec 2021
2001:df0:3700::/4865.5k × /64APNICID1st Feb 2017
2001:df0:3782::/47131k × /64APNICVN14th Jun 2019
2001:df0:3880::/4865.5k × /64APNICVN19th Apr 2019
2001:df0:38c0::/4865.5k × /64APNICPK22nd Dec 2021
2001:df0:3900::/4865.5k × /64APNICID2nd Feb 2017
2001:df0:39c0::/4865.5k × /64APNICPK24th Dec 2021
2001:df0:3a00::/4865.5k × /64APNICIN6th Jan 2016
2001:df0:3a40::/4865.5k × /64APNICID24th Dec 2021
2001:df0:3ac0::/4865.5k × /64APNICIN27th Dec 2021
2001:df0:3b00::/4865.5k × /64APNICIN3rd Feb 2017
2001:df0:3c00::/4865.5k × /64APNICAU22nd Aug 2014
2001:df0:3c40::/4865.5k × /64APNICBD28th Dec 2021
2001:df0:3cc0::/4865.5k × /64APNICBD29th Dec 2021
2001:df0:3d00::/4865.5k × /64APNICID3rd Feb 2017
2001:df0:3d40::/4865.5k × /64APNICIN29th Dec 2021
2001:df0:3dc0::/4865.5k × /64APNICVN29th Dec 2021
2001:df0:3e00::/4865.5k × /64APNICAU7th Jan 2016
2001:df0:3e40::/4865.5k × /64APNICBD30th Dec 2021
2001:df0:3ec0::/4865.5k × /64APNICTH30th Dec 2021
2001:df0:3f00::/4865.5k × /64APNICID3rd Feb 2017
2001:df0:3f80::/4865.5k × /64APNICBD25th Apr 2019
2001:df0:3fc0::/4865.5k × /64APNICVN30th Dec 2021
2001:df0:403::/4865.5k × /64APNICAU7th Sept 2012
2001:df0:4040::/4865.5k × /64APNICID30th Dec 2021
2001:df0:4080::/4865.5k × /64APNICBD26th Apr 2019
2001:df0:409::/4865.5k × /64APNICID13th Sept 2012
2001:df0:40::/4865.5k × /64APNICVN4th Sept 2008
2001:df0:40a::/4865.5k × /64APNICAU19th Sept 2012
2001:df0:40c0::/4865.5k × /64APNICVN30th Dec 2021
2001:df0:40c::/4865.5k × /64APNICFR19th Sept 2012
2001:df0:40d::/4865.5k × /64APNICAU19th Sept 2012
2001:df0:40e::/4865.5k × /64APNICID19th Sept 2012
2001:df0:40f::/4865.5k × /64APNICID19th Sept 2012
2001:df0:410::/4865.5k × /64APNICVU20th Sept 2012
2001:df0:412::/4865.5k × /64APNICHK21st Sept 2012
2001:df0:4140::/4865.5k × /64APNICVN30th Dec 2021
2001:df0:415::/4865.5k × /64APNICAU26th Sept 2012
2001:df0:4180::/4865.5k × /64APNICID26th Apr 2019
2001:df0:418::/4865.5k × /64APNICID11th Oct 2012
2001:df0:419::/4865.5k × /64APNICID12th Oct 2012