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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

907 blocks match, ordered by prefix.

Allocated but unannounced blocks, 451 to 500 of 907
PrefixAddressesRegistryCountryAllocated
2a05:3900::/2934.4B × /64RIPE NCCES3rd Oct 2014
2a05:3dc0::/2934.4B × /64RIPE NCCES28th Jun 2016
2a05:400::/2934.4B × /64RIPE NCCES22nd Jun 2026
2a05:4300::/2934.4B × /64RIPE NCCES27th Jun 2025
2a05:4440::/2934.4B × /64RIPE NCCES17th Oct 2014
2a05:4d40::/2934.4B × /64RIPE NCCES11th May 2015
2a05:5c0::/2934.4B × /64RIPE NCCES5th Aug 2014
2a05:5d40::/2934.4B × /64RIPE NCCES5th Jan 2016
2a05:6500::/2934.4B × /64RIPE NCCES19th Nov 2014
2a05:65c0::/2934.4B × /64RIPE NCCES19th Nov 2014
2a05:6940::/2934.4B × /64RIPE NCCES21st Nov 2014
2a05:6b40::/2934.4B × /64RIPE NCCES17th Jun 2015
2a05:7080::/2934.4B × /64RIPE NCCES27th Nov 2014
2a05:8c0::/2934.4B × /64RIPE NCCES13th Jul 2015
2a05:9c40::/2934.4B × /64RIPE NCCES15th May 2025
2a05:a4c0::/2934.4B × /64RIPE NCCES16th Jan 2015
2a05:af00::/2934.4B × /64RIPE NCCES27th Jan 2015
2a05:c380::/2934.4B × /64RIPE NCCES15th May 2025
2a05:c7c0::/2934.4B × /64RIPE NCCES13th Feb 2015
2a05:ce00::/2934.4B × /64RIPE NCCES18th Feb 2015
2a05:dc0::/2934.4B × /64RIPE NCCES14th Aug 2014
2a05:e280::/2934.4B × /64RIPE NCCES6th Mar 2015
2a05:e400::/2934.4B × /64RIPE NCCES9th Mar 2015
2a05:e6c0::/2934.4B × /64RIPE NCCES10th Mar 2015
2a05:ea40::/2934.4B × /64RIPE NCCES12th Mar 2015
2a05:eec0::/2934.4B × /64RIPE NCCES20th Jun 2018
2a05:f980::/2934.4B × /64RIPE NCCES25th Mar 2015
2a06:17c0::/2934.4B × /64RIPE NCCES15th May 2015
2a06:1880::/2934.4B × /64RIPE NCCES18th May 2015
2a06:1f80::/2934.4B × /64RIPE NCCES26th May 2015
2a06:2180::/2934.4B × /64RIPE NCCES18th Aug 2025
2a06:37c0::/2934.4B × /64RIPE NCCES31st Dec 2015
2a06:3f80::/2934.4B × /64RIPE NCCES1st Jul 2015
2a06:5340::/2934.4B × /64RIPE NCCES20th Jul 2015
2a06:58c0::/2934.4B × /64RIPE NCCES24th Jul 2015
2a06:60c0::/2934.4B × /64RIPE NCCES3rd Aug 2015
2a06:6100::/2934.4B × /64RIPE NCCES3rd Aug 2015
2a06:7540::/2934.4B × /64RIPE NCCES28th Aug 2015
2a06:8c40::/2934.4B × /64RIPE NCCES2nd Oct 2015
2a06:9940::/2934.4B × /64RIPE NCCES8th Oct 2015
2a06:9980::/2934.4B × /64RIPE NCCES27th Jun 2018
2a06:a6c0::/2934.4B × /64RIPE NCCES22nd Oct 2015
2a06:a8c0::/2934.4B × /64RIPE NCCES19th Jun 2024
2a06:b4c0::/2934.4B × /64RIPE NCCES12th Jul 2023
2a06:ce40::/2934.4B × /64RIPE NCCES25th Nov 2015
2a06:d080::/2934.4B × /64RIPE NCCES26th Nov 2015
2a06:d600::/2934.4B × /64RIPE NCCES4th Dec 2015
2a06:e540::/2934.4B × /64RIPE NCCES24th Dec 2015
2a06:e840::/2934.4B × /64RIPE NCCES7th Jan 2016
2a06:f380::/2934.4B × /64RIPE NCCES21st Jan 2016