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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

556 blocks match, ordered by prefix.

Allocated but unannounced blocks, 351 to 400 of 556
PrefixAddressesRegistryCountryAllocated
2a04:380::/2934.4B × /64RIPE NCCAT22nd Jun 2021
2a04:3e40::/2934.4B × /64RIPE NCCAT7th Jun 2013
2a04:5540::/2934.4B × /64RIPE NCCAT31st Jul 2013
2a04:7100::/2934.4B × /64RIPE NCCAT10th Oct 2013
2a04:8440::/2934.4B × /64RIPE NCCAT13th Nov 2013
2a04:a4c0::/2934.4B × /64RIPE NCCAT24th Jan 2014
2a04:cd40::/2934.4B × /64RIPE NCCAT10th Apr 2014
2a04:d540::/2934.4B × /64RIPE NCCAT25th Apr 2014
2a04:f100::/2934.4B × /64RIPE NCCAT1st Jul 2014
2a05:34c0::/2934.4B × /64RIPE NCCAT30th Sept 2014
2a05:4dc0::/2934.4B × /64RIPE NCCAT27th Oct 2014
2a05:6100::/324.3B × /64RIPE NCCAT17th Jun 2019
2a05:6d00::/2934.4B × /64RIPE NCCAT15th Jun 2018
2a05:da40::/2934.4B × /64RIPE NCCAT26th Feb 2015
2a05:e3c0::/2934.4B × /64RIPE NCCAT9th Mar 2015
2a05:fc00::/2934.4B × /64RIPE NCCAT13th Apr 2015
2a06:2f40::/2934.4B × /64RIPE NCCAT30th Dec 2015
2a06:3c40::/2934.4B × /64RIPE NCCAT20th Apr 2026
2a06:5c40::/2934.4B × /64RIPE NCCAT29th Jul 2015
2a06:680::/2934.4B × /64RIPE NCCAT14th Feb 2022
2a06:6980::/2934.4B × /64RIPE NCCAT14th Aug 2015
2a06:7240::/2934.4B × /64RIPE NCCAT26th Aug 2015
2a06:8880::/2934.4B × /64RIPE NCCAT28th Sept 2015
2a06:8dc0::/2934.4B × /64RIPE NCCAT6th Oct 2015
2a06:8e00::/2934.4B × /64RIPE NCCAT6th Oct 2015
2a06:8ec0::/2934.4B × /64RIPE NCCAT6th Oct 2015
2a06:96c0::/2934.4B × /64RIPE NCCAT25th Sept 2015
2a06:b600::/2934.4B × /64RIPE NCCAT17th Jun 2026
2a06:c4c0::/2934.4B × /64RIPE NCCAT17th Nov 2015
2a07:2dc0::/2934.4B × /64RIPE NCCAT9th Mar 2016
2a07:47c0::/2934.4B × /64RIPE NCCAT1st Apr 2016
2a07:61c0::/2934.4B × /64RIPE NCCAT18th Sept 2023
2a07:6280::/2934.4B × /64RIPE NCCAT22nd Apr 2016
2a07:a980::/2934.4B × /64RIPE NCCAT30th Jun 2016
2a07:c0c0::/2934.4B × /64RIPE NCCAT27th Jul 2016
2a07:df80::/2934.4B × /64RIPE NCCAT20th Jun 2019
2a07:f780::/2934.4B × /64RIPE NCCAT4th Jun 2018
2a09:16c0::/2934.4B × /64RIPE NCCAT15th Jan 2019
2a09:1c40::/2934.4B × /64RIPE NCCAT17th Jan 2019
2a09:6680::/2934.4B × /64RIPE NCCAT8th Jun 2026
2a09:b800::/2934.4B × /64RIPE NCCAT1st Nov 2018
2a0a:1e00::/2934.4B × /64RIPE NCCAT26th Aug 2016
2a0a:2ac0::/324.3B × /64RIPE NCCAT1st Mar 2017
2a0a:2c80::/2934.4B × /64RIPE NCCAT9th Nov 2016
2a0a:3d40::/2934.4B × /64RIPE NCCAT9th Mar 2017
2a0a:4740::/2934.4B × /64RIPE NCCAT14th Mar 2017
2a0a:4800::/2934.4B × /64RIPE NCCAT11th Aug 2016
2a0a:6440::/2934.4B × /64RIPE NCCAT9th Sept 2021
2a0a:7c00::/2934.4B × /64RIPE NCCAT17th Aug 2016
2a0a:9dc0::/2934.4B × /64RIPE NCCAT18th Apr 2017