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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 39201 to 39250 of 85356
PrefixAddressesRegistryCountryAllocated
2001:df2:5700::/4865.5k × /64APNICID22nd Aug 2017
2001:df2:5740::/4865.5k × /64APNICTW28th Apr 2023
2001:df2:5741::/4865.5k × /64APNICTW25th Mar 2024
2001:df2:5742::/47131k × /64APNICTW10th Apr 2025
2001:df2:5780::/4865.5k × /64APNICCN10th Dec 2019
2001:df2:580::/4865.5k × /64APNICID18th Nov 2019
2001:df2:5840::/4865.5k × /64APNICID28th Apr 2023
2001:df2:5880::/4865.5k × /64APNICBD10th Dec 2019
2001:df2:58c0::/4865.5k × /64APNICID28th Apr 2023
2001:df2:5900::/4865.5k × /64APNICLK23rd Aug 2017
2001:df2:5940::/4865.5k × /64APNICID28th Apr 2023
2001:df2:5ac0::/4865.5k × /64APNICIN2nd May 2023
2001:df2:5b00::/4865.5k × /64APNICID23rd Aug 2017
2001:df2:5b40::/4865.5k × /64APNICBD2nd May 2023
2001:df2:5b80::/4865.5k × /64APNICID11th Dec 2019
2001:df2:5bc0::/4865.5k × /64APNICIN3rd May 2023
2001:df2:5c0::/4865.5k × /64APNICID21st Feb 2023
2001:df2:5c40::/4865.5k × /64APNICNP3rd May 2023
2001:df2:5c80::/4865.5k × /64APNICAU11th Dec 2019
2001:df2:5cc0::/4865.5k × /64APNICID3rd May 2023
2001:df2:5d00::/4865.5k × /64APNICMN24th Aug 2017
2001:df2:5d40::/4865.5k × /64APNICID3rd May 2023
2001:df2:5e00::/4865.5k × /64APNICID24th May 2016
2001:df2:5e80::/4865.5k × /64APNICNZ12th Dec 2019
2001:df2:5f00::/4865.5k × /64APNICIN25th Aug 2017
2001:df2:5f40::/4865.5k × /64APNICID3rd May 2023
2001:df2:5f80::/4865.5k × /64APNICID13th Dec 2019
2001:df2:6040::/4865.5k × /64APNICIN5th May 2023
2001:df2:6080::/4865.5k × /64APNICBD13th Dec 2019
2001:df2:60c0::/4865.5k × /64APNICID5th May 2023
2001:df2:6240::/4865.5k × /64APNICAU8th May 2023
2001:df2:62c0::/4865.5k × /64APNICBD8th May 2023
2001:df2:6300::/4865.5k × /64APNICID29th Aug 2017
2001:df2:6340::/4865.5k × /64APNICPH9th May 2023
2001:df2:6380::/4865.5k × /64APNICAF16th Dec 2019
2001:df2:63c0::/4865.5k × /64APNICIN9th May 2023
2001:df2:6400::/4865.5k × /64APNICIN4th Feb 2015
2001:df2:640::/4865.5k × /64APNICID21st Feb 2023
2001:df2:64c0::/4865.5k × /64APNICIN10th May 2023
2001:df2:6500::/4865.5k × /64APNICID29th Aug 2017
2001:df2:6600::/4865.5k × /64APNICVN26th May 2016
2001:df2:6640::/4865.5k × /64APNICBD10th May 2023
2001:df2:6700::/4865.5k × /64APNICAU31st Aug 2017
2001:df2:6740::/4865.5k × /64APNICIN10th May 2023
2001:df2:67c0::/4865.5k × /64APNICBD10th May 2023
2001:df2:6800::/4865.5k × /64APNICPH30th Jan 2014
2001:df2:680::/4865.5k × /64APNICID18th Nov 2019
2001:df2:6840::/4865.5k × /64APNICAU11th May 2023
2001:df2:6900::/4865.5k × /64APNICVN31st Aug 2017
2001:df2:6940::/4865.5k × /64APNICBD11th May 2023