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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks in Vietnam

827 blocks match, ordered by prefix.

Allocated but unannounced blocks, 751 to 800 of 827
PrefixAddressesRegistryCountryAllocated
2406:22c0::/324.3B × /64APNICVN4th Jun 2020
2406:23c0::/324.3B × /64APNICVN4th Jun 2020
2406:2840::/324.3B × /64APNICVN15th Jun 2020
2406:28c0::/324.3B × /64APNICVN15th Jun 2020
2406:30c0::/324.3B × /64APNICVN25th Jun 2020
2406:4040::/324.3B × /64APNICVN13th Jul 2020
2406:4c40::/324.3B × /64APNICVN28th Jul 2020
2406:4cc0::/324.3B × /64APNICVN28th Jul 2020
2406:5f40::/324.3B × /64APNICVN20th Aug 2020
2406:71c0::/324.3B × /64APNICVN11th Sept 2020
2406:a640::/324.3B × /64APNICVN26th Oct 2020
2406:ca40::/324.3B × /64APNICVN25th Nov 2020
2406:cbc0::/324.3B × /64APNICVN25th Nov 2020
2406:dfc0::/324.3B × /64APNICVN10th Dec 2020
2406:e40::/324.3B × /64APNICVN29th Apr 2020
2406:e6c0::/324.3B × /64APNICVN15th Dec 2020
2406:f840::/324.3B × /64APNICVN29th Dec 2020
2406:fa40::/324.3B × /64APNICVN30th Dec 2020
2406:fe40::/324.3B × /64APNICVN6th Jan 2021
2406:ff40::/324.3B × /64APNICVN7th Jan 2021
2407:100::/324.3B × /64APNICVN22nd May 2013
2407:140::/324.3B × /64APNICVN8th Jan 2021
2407:1640::/324.3B × /64APNICVN2nd Feb 2021
2407:16c0::/324.3B × /64APNICVN3rd Feb 2021
2407:1c0::/324.3B × /64APNICVN8th Jan 2021
2407:2240::/324.3B × /64APNICVN18th Feb 2021
2407:22c0::/324.3B × /64APNICVN18th Feb 2021
2407:27c0::/324.3B × /64APNICVN26th Feb 2021
2407:3440::/324.3B × /64APNICVN11th Mar 2021
2407:34c0::/324.3B × /64APNICVN11th Mar 2021
2407:3ac0::/324.3B × /64APNICVN18th Mar 2021
2407:4a40::/324.3B × /64APNICVN5th Apr 2021
2407:5240::/324.3B × /64APNICVN19th Apr 2021
2407:540::/324.3B × /64APNICVN13th Jan 2021
2407:5ac0::/324.3B × /64APNICVN29th Apr 2021
2407:5c0::/324.3B × /64APNICVN13th Jan 2021
2407:640::/324.3B × /64APNICVN13th Jan 2021
2407:66c0::/324.3B × /64APNICVN19th May 2021
2407:6740::/324.3B × /64APNICVN19th May 2021
2407:67c0::/324.3B × /64APNICVN19th May 2021
2407:70c0::/324.3B × /64APNICVN1st Jun 2021
2407:7ec0::/324.3B × /64APNICVN10th Jun 2021
2407:83c0::/324.3B × /64APNICVN11th Jun 2021
2407:9940::/324.3B × /64APNICVN25th Jun 2021
2407:a340::/324.3B × /64APNICVN5th Jul 2021
2407:a440::/324.3B × /64APNICVN7th Jul 2021
2407:bbc0::/324.3B × /64APNICVN3rd Aug 2021
2407:c0::/324.3B × /64APNICVN8th Jan 2021
2407:c240::/324.3B × /64APNICVN10th Aug 2021
2407:cc40::/324.3B × /64APNICVN24th Aug 2021