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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Browse by country

Countries with unannounced space registered through APNIC, largest first.

Unannounced blocks in Vietnam

822 blocks match, ordered by prefix.

Allocated but unannounced blocks, 251 to 300 of 822
PrefixAddressesRegistryCountryAllocated
2001:df0:f::/4865.5k × /64APNICVN11th Jun 2008
2001:df1:1d40::/4865.5k × /64APNICVN10th Aug 2022
2001:df1:2d40::/4865.5k × /64APNICVN24th Aug 2022
2001:df1:57c0::/4865.5k × /64APNICVN3rd Oct 2022
2001:df1:8bc0::/4865.5k × /64APNICVN17th Nov 2022
2001:df1:c880::/4865.5k × /64APNICVN28th Oct 2019
2001:df1:c980::/4865.5k × /64APNICVN28th Oct 2019
2001:df1:e5c0::/47131k × /64APNICVN31st Jan 2023
2001:df1:eb80::/4865.5k × /64APNICVN6th Nov 2019
2001:df1:f140::/4865.5k × /64APNICVN10th Feb 2023
2001:df2:1940::/4865.5k × /64APNICVN10th Mar 2023
2001:df2:19c0::/4865.5k × /64APNICVN10th Mar 2023
2001:df2:21c0::/4865.5k × /64APNICVN16th Mar 2023
2001:df2:3d80::/4865.5k × /64APNICVN3rd Dec 2019
2001:df2:3e40::/4865.5k × /64APNICVN7th Apr 2023
2001:df2:4d40::/4865.5k × /64APNICVN20th Apr 2023
2001:df2:4dc0::/4865.5k × /64APNICVN20th Apr 2023
2001:df2:6600::/4865.5k × /64APNICVN26th May 2016
2001:df2:6900::/4865.5k × /64APNICVN31st Aug 2017
2001:df2:7b00::/4865.5k × /64APNICVN8th Sept 2017
2001:df2:8180::/4865.5k × /64APNICVN27th Dec 2019
2001:df2:f000::/4865.5k × /64APNICVN5th Sept 2013
2001:df3:2d00::/4865.5k × /64APNICVN23rd Nov 2017
2001:df3:3940::/4865.5k × /64APNICVN30th Nov 2023
2001:df3:4a80::/4865.5k × /64APNICVN30th Mar 2020
2001:df3:4cc0::/4865.5k × /64APNICVN20th Dec 2023
2001:df3:4ec0::/4865.5k × /64APNICVN22nd Dec 2023
2001:df3:53c0::/4865.5k × /64APNICVN3rd Jan 2024
2001:df3:5640::/4865.5k × /64APNICVN8th Jan 2024
2001:df3:6440::/4865.5k × /64APNICVN23rd Jan 2024
2001:df3:68c0::/4865.5k × /64APNICVN26th Jan 2024
2001:df3:6b40::/4865.5k × /64APNICVN2nd Feb 2024
2001:df3:6bc0::/4865.5k × /64APNICVN2nd Feb 2024
2001:df3:7680::/4865.5k × /64APNICVN15th Apr 2020
2001:df3:7ac0::/4865.5k × /64APNICVN19th Feb 2024
2001:df3:8a00::/4865.5k × /64APNICVN26th Jul 2016
2001:df3:8e00::/4865.5k × /64APNICVN26th Jul 2016
2001:df3:9200::/4865.5k × /64APNICVN26th Jul 2016
2001:df3:9780::/4865.5k × /64APNICVN29th Apr 2020
2001:df3:9dc0::/4865.5k × /64APNICVN27th Mar 2024
2001:df3:a980::/4865.5k × /64APNICVN8th May 2020
2001:df3:aa80::/4865.5k × /64APNICVN8th May 2020
2001:df3:afc0::/4865.5k × /64APNICVN17th Apr 2024
2001:df3:b3c0::/4865.5k × /64APNICVN22nd Apr 2024
2001:df3:b440::/4865.5k × /64APNICVN22nd Apr 2024
2001:df3:b500::/4865.5k × /64APNICVN4th Jan 2018
2001:df3:b700::/4865.5k × /64APNICVN4th Jan 2018
2001:df3:c040::/4865.5k × /64APNICVN2nd May 2024
2001:df3:e100::/4865.5k × /64APNICVN16th Jan 2018
2001:df3:e240::/4865.5k × /64APNICVN4th Jun 2024