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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 351 to 400 of 822
PrefixAddressesRegistryCountryAllocated
2001:df4:50c0::/4865.5k × /64APNICVN25th Sept 2024
2001:df4:5740::/4865.5k × /64APNICVN2nd Oct 2024
2001:df4:5840::/4865.5k × /64APNICVN2nd Oct 2024
2001:df4:5940::/4865.5k × /64APNICVN2nd Oct 2024
2001:df4:6280::/4865.5k × /64APNICVN31st Jul 2020
2001:df4:63c0::/4865.5k × /64APNICVN9th Oct 2024
2001:df4:640::/4865.5k × /64APNICVN3rd Jul 2024
2001:df4:6440::/4865.5k × /64APNICVN9th Oct 2024
2001:df4:6540::/4865.5k × /64APNICVN10th Oct 2024
2001:df4:6740::/4865.5k × /64APNICVN10th Oct 2024
2001:df4:67c0::/4865.5k × /64APNICVN10th Oct 2024
2001:df4:6840::/4865.5k × /64APNICVN10th Oct 2024
2001:df4:700::/4865.5k × /64APNICVN30th Jan 2018
2001:df4:70c0::/4865.5k × /64APNICVN17th Oct 2024
2001:df4:7240::/4865.5k × /64APNICVN18th Oct 2024
2001:df4:72c0::/4865.5k × /64APNICVN18th Oct 2024
2001:df4:73c0::/4865.5k × /64APNICVN18th Oct 2024
2001:df4:7580::/4865.5k × /64APNICVN11th Aug 2020
2001:df4:7cc0::/4865.5k × /64APNICVN24th Oct 2024
2001:df4:7d40::/4865.5k × /64APNICVN24th Oct 2024
2001:df4:7dc0::/4865.5k × /64APNICVN24th Oct 2024
2001:df4:7e40::/4865.5k × /64APNICVN24th Oct 2024
2001:df4:7ec0::/4865.5k × /64APNICVN24th Oct 2024
2001:df4:7f40::/4865.5k × /64APNICVN24th Oct 2024
2001:df4:7fc0::/4865.5k × /64APNICVN24th Oct 2024
2001:df4:8040::/4865.5k × /64APNICVN24th Oct 2024
2001:df4:8140::/4865.5k × /64APNICVN24th Oct 2024
2001:df4:8640::/4865.5k × /64APNICVN29th Oct 2024
2001:df4:8740::/4865.5k × /64APNICVN30th Oct 2024
2001:df4:8ac0::/4865.5k × /64APNICVN4th Nov 2024
2001:df4:8b40::/4865.5k × /64APNICVN4th Nov 2024
2001:df4:8cc0::/4865.5k × /64APNICVN5th Nov 2024
2001:df4:8d40::/4865.5k × /64APNICVN5th Nov 2024
2001:df4:9180::/4865.5k × /64APNICVN14th Aug 2020
2001:df4:9380::/4865.5k × /64APNICVN14th Aug 2020
2001:df4:9440::/4865.5k × /64APNICVN11th Nov 2024
2001:df4:94c0::/4865.5k × /64APNICVN11th Nov 2024
2001:df4:9540::/4865.5k × /64APNICVN11th Nov 2024
2001:df4:9580::/4865.5k × /64APNICVN14th Aug 2020
2001:df4:95c0::/4865.5k × /64APNICVN11th Nov 2024
2001:df4:9640::/4865.5k × /64APNICVN11th Nov 2024
2001:df4:9700::/4865.5k × /64APNICVN21st Mar 2018
2001:df4:97c0::/4865.5k × /64APNICVN12th Nov 2024
2001:df4:9940::/4865.5k × /64APNICVN13th Nov 2024
2001:df4:9b40::/4865.5k × /64APNICVN13th Nov 2024
2001:df4:9bc0::/4865.5k × /64APNICVN13th Nov 2024
2001:df4:9c40::/4865.5k × /64APNICVN13th Nov 2024
2001:df4:9cc0::/4865.5k × /64APNICVN13th Nov 2024
2001:df4:9d40::/4865.5k × /64APNICVN13th Nov 2024
2001:df4:9dc0::/4865.5k × /64APNICVN13th Nov 2024