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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

898 blocks match, ordered by prefix.

Allocated but unannounced blocks, 701 to 750 of 898
PrefixAddressesRegistryCountryAllocated
2a0f:4ec0::/2934.4B × /64RIPE NCCES5th Nov 2019
2a0f:5400::/2934.4B × /64RIPE NCCES2nd Sept 2019
2a0f:6540::/2934.4B × /64RIPE NCCES8th Nov 2019
2a0f:7940::/2934.4B × /64RIPE NCCES25th Sept 2026
2a0f:7c00::/2934.4B × /64RIPE NCCES2nd Sept 2019
2a0f:9140::/2934.4B × /64RIPE NCCES19th Dec 2025
2a0f:9940::/2934.4B × /64RIPE NCCES19th Nov 2019
2a0f:9f80::/2934.4B × /64RIPE NCCES6th Apr 2020
2a0f:a240::/2934.4B × /64RIPE NCCES20th Nov 2019
2a0f:c680::/2934.4B × /64RIPE NCCES3rd Oct 2022
2a0f:d140::/2934.4B × /64RIPE NCCES6th Dec 2019
2a0f:d6c0::/324.3B × /64RIPE NCCES11th Feb 2026
2a0f:f040::/2934.4B × /64RIPE NCCES16th Dec 2019
2a10:2280::/2934.4B × /64RIPE NCCES24th Feb 2020
2a10:2640::/324.3B × /64RIPE NCCES22nd Jun 2021
2a10:3700::/2934.4B × /64RIPE NCCES11th Feb 2020
2a10:4d00::/2934.4B × /64RIPE NCCES11th Feb 2026
2a10:4e80::/2934.4B × /64RIPE NCCES20th Apr 2020
2a10:5100::/2934.4B × /64RIPE NCCES16th Apr 2020
2a10:5280::/2934.4B × /64RIPE NCCES21st Apr 2020
2a10:64c0::/324.3B × /64RIPE NCCES3rd Nov 2025
2a10:6fc0::/2934.4B × /64RIPE NCCES24th Sept 2020
2a10:7dc0::/2934.4B × /64RIPE NCCES8th Oct 2020
2a10:80::/2934.4B × /64RIPE NCCES11th Feb 2026
2a10:8c00::/2934.4B × /64RIPE NCCES12th Feb 2026
2a10:a900::/2934.4B × /64RIPE NCCES16th Nov 2020
2a10:aec0::/2934.4B × /64RIPE NCCES11th Mar 2021
2a10:c0::/2934.4B × /64RIPE NCCES2nd Mar 2020
2a10:e500::/2934.4B × /64RIPE NCCES25th Nov 2020
2a10:efc0::/324.3B × /64RIPE NCCES4th May 2021
2a10:f680::/2934.4B × /64RIPE NCCES22nd Jan 2021
2a10:f940::/2934.4B × /64RIPE NCCES23rd Jun 2021
2a10:fc00::/2934.4B × /64RIPE NCCES22nd Oct 2020
2a11:4f80::/2934.4B × /64RIPE NCCES12th Nov 2025
2a11:5c40::/2934.4B × /64RIPE NCCES30th Sept 2021
2a11:61c0::/324.3B × /64RIPE NCCES1st Oct 2021
2a11:7f40::/2934.4B × /64RIPE NCCES6th Oct 2021
2a11:880::/2934.4B × /64RIPE NCCES14th May 2021
2a11:c6c0::/2934.4B × /64RIPE NCCES19th Feb 2026
2a12:17c0::/2934.4B × /64RIPE NCCES17th Dec 2021
2a12:6c80::/2934.4B × /64RIPE NCCES2nd Mar 2026
2a12:7ac0::/2934.4B × /64RIPE NCCES15th Feb 2022
2a12:8a80::/2934.4B × /64RIPE NCCES3rd Mar 2026
2a12:b840::/324.3B × /64RIPE NCCES29th Mar 2022
2a12:bcc0::/2934.4B × /64RIPE NCCES31st Mar 2022
2a12:f2c0::/2934.4B × /64RIPE NCCES16th May 2022
2a12:f800::/2934.4B × /64RIPE NCCES2nd Nov 2021
2a13:1a00::/324.3B × /64RIPE NCCES15th Jun 2022
2a13:1cc0::/2934.4B × /64RIPE NCCES4th Nov 2022
2a13:2600::/2934.4B × /64RIPE NCCES16th Jun 2022