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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 37901 to 37950 of 85356
PrefixAddressesRegistryCountryAllocated
2001:df0:6b::/4865.5k × /64APNICIN11th Feb 2010
2001:df0:6bc0::/4865.5k × /64APNICBD9th Feb 2022
2001:df0:6c0::/4865.5k × /64APNICIN8th Nov 2021
2001:df0:6c80::/4865.5k × /64APNICPK15th May 2019
2001:df0:6cc0::/4865.5k × /64APNICMM9th Feb 2022
2001:df0:6d40::/4865.5k × /64APNICIN9th Feb 2022
2001:df0:6dc0::/4865.5k × /64APNICBD9th Feb 2022
2001:df0:6e40::/4865.5k × /64APNICAU11th Feb 2022
2001:df0:6e80::/4865.5k × /64APNICIN17th May 2019
2001:df0:6ec0::/4865.5k × /64APNICPK11th Feb 2022
2001:df0:6f00::/4865.5k × /64APNICMY1st Mar 2017
2001:df0:6f40::/4865.5k × /64APNICUS11th Feb 2022
2001:df0:6f80::/4865.5k × /64APNICID17th May 2019
2001:df0:6f::/4865.5k × /64APNICAU11th Feb 2010
2001:df0:6fc0::/4865.5k × /64APNICIN13th Feb 2022
2001:df0:7000::/4865.5k × /64APNICAU26th Jul 2013
2001:df0:7040::/4865.5k × /64APNICMV14th Feb 2022
2001:df0:7080::/4865.5k × /64APNICID17th May 2019
2001:df0:70::/4865.5k × /64APNICPH11th Feb 2010
2001:df0:70c0::/4865.5k × /64APNICIN14th Feb 2022
2001:df0:7140::/4865.5k × /64APNICBD14th Feb 2022
2001:df0:7180::/4865.5k × /64APNICSG17th May 2019
2001:df0:71c0::/4865.5k × /64APNICIN15th Feb 2022
2001:df0:7280::/4865.5k × /64APNICID20th May 2019
2001:df0:72c0::/4865.5k × /64APNICAU17th Feb 2022
2001:df0:7340::/4865.5k × /64APNICIN17th Feb 2022
2001:df0:7380::/4865.5k × /64APNICAU21st May 2019
2001:df0:73::/4865.5k × /64APNICAU12th Feb 2010
2001:df0:73c0::/4865.5k × /64APNICAU18th Feb 2022
2001:df0:740::/4865.5k × /64APNICBD9th Nov 2021
2001:df0:74::/4865.5k × /64APNICAU12th Feb 2010
2001:df0:7580::/4865.5k × /64APNICID21st May 2019
2001:df0:7640::/4865.5k × /64APNICIN21st Feb 2022
2001:df0:7680::/4865.5k × /64APNICSG21st May 2019
2001:df0:7700::/4865.5k × /64APNICBD4th Mar 2017
2001:df0:7740::/4865.5k × /64APNICIN21st Feb 2022
2001:df0:7780::/4865.5k × /64APNICTH21st May 2019
2001:df0:77::/4865.5k × /64APNICNZ12th Feb 2010
2001:df0:77c0::/4865.5k × /64APNICNC22nd Feb 2022
2001:df0:780::/4865.5k × /64APNICAU7th Mar 2019
2001:df0:7840::/4865.5k × /64APNICUS22nd Feb 2022
2001:df0:78::/4865.5k × /64APNICHK12th Feb 2010
2001:df0:78c0::/4865.5k × /64APNICIN22nd Feb 2022
2001:df0:7900::/4865.5k × /64APNICAU6th Mar 2017
2001:df0:7940::/4865.5k × /64APNICIN23rd Feb 2022
2001:df0:7980::/4865.5k × /64APNICID22nd May 2019
2001:df0:7a00::/4865.5k × /64APNICTL2nd Feb 2016
2001:df0:7a40::/4865.5k × /64APNICIN23rd Feb 2022
2001:df0:7a80::/4865.5k × /64APNICID22nd May 2019
2001:df0:7ac0::/4865.5k × /64APNICID23rd Feb 2022