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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.

Unannounced blocks in Vietnam

825 blocks match, ordered by prefix.

Allocated but unannounced blocks, 801 to 825 of 825
PrefixAddressesRegistryCountryAllocated
2407:ce40::/324.3B × /64APNICVN24th Aug 2021
2407:db40::/324.3B × /64APNICVN7th Sept 2021
2407:dc0::/324.3B × /64APNICVN25th Jan 2021
2407:e40::/324.3B × /64APNICVN25th Jan 2021
2407:e940::/324.3B × /64APNICVN22nd Sept 2021
2407:ec0::/324.3B × /64APNICVN25th Jan 2021
2407:f540::/324.3B × /64APNICVN30th Sept 2021
2602:f579::/36268M × /64ARINVN2nd Sept 2025
2602:f5ea::/36268M × /64ARINVN10th Jul 2025
2602:f740::/36268M × /64ARINVN9th Jan 2025
2602:f78e::/36268M × /64ARINVN20th Nov 2024
2602:f7b7::/36268M × /64ARINVN31st Oct 2024
36.50.16.0/23512APNICVN27th Nov 2023
36.50.208.0/23512APNICVN22nd Dec 2023
36.50.28.0/23512APNICVN27th Nov 2023
42.96.6.0/24256APNICVN29th Mar 2011
42.96.7.0/24256APNICVN29th Mar 2011
42.96.8.0/24256APNICVN29th Mar 2011
42.96.9.0/24256APNICVN29th Mar 2011
43.239.184.0/221kAPNICVN17th Aug 2015
45.119.108.0/221kAPNICVN4th Jun 2015
45.119.76.0/221kAPNICVN4th Jun 2015
45.121.152.0/221kAPNICVN2nd Jul 2015
59.153.212.0/221kAPNICVN22nd Oct 2015
61.11.224.0/198.2kAPNICVN30th Mar 2011