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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

2,050 blocks match, ordered by prefix.

Allocated but unannounced blocks, 951 to 1000 of 2050
PrefixAddressesRegistryCountryAllocated
2a03:4ec0::/324.3B × /64RIPE NCCRU8th Nov 2012
2a03:4fc0::/324.3B × /64RIPE NCCRU13th May 2015
2a03:500::/324.3B × /64RIPE NCCRU24th Mar 2011
2a03:5040::/2934.4B × /64RIPE NCCRU9th Nov 2012
2a03:5060::/324.3B × /64RIPE NCCRU10th Nov 2014
2a03:5200::/324.3B × /64RIPE NCCRU4th Feb 2011
2a03:52c0::/324.3B × /64RIPE NCCRU12th Nov 2012
2a03:5600::/324.3B × /64RIPE NCCRU4th Feb 2011
2a03:5660::/324.3B × /64RIPE NCCRU16th Sept 2015
2a03:57a0::/324.3B × /64RIPE NCCRU21st Nov 2014
2a03:58c0::/324.3B × /64RIPE NCCRU13th Nov 2012
2a03:5a60::/324.3B × /64RIPE NCCRU25th Nov 2014
2a03:5ca0::/324.3B × /64RIPE NCCRU28th Nov 2014
2a03:6140::/2934.4B × /64RIPE NCCRU16th Nov 2012
2a03:6200::/324.3B × /64RIPE NCCRU4th Feb 2011
2a03:6440::/2934.4B × /64RIPE NCCRU6th May 2025
2a03:66c0::/324.3B × /64RIPE NCCRU21st Nov 2012
2a03:6a40::/324.3B × /64RIPE NCCRU23rd Nov 2012
2a03:6ea0::/324.3B × /64RIPE NCCRU7th Oct 2015
2a03:7540::/324.3B × /64RIPE NCCRU28th Nov 2012
2a03:79c0::/324.3B × /64RIPE NCCRU30th Nov 2012
2a03:7ca0::/2934.4B × /64RIPE NCCRU13th Feb 2015
2a03:7d80::/324.3B × /64RIPE NCCRU12th Oct 2015
2a03:7da0::/2934.4B × /64RIPE NCCRU16th Feb 2015
2a03:7f60::/2934.4B × /64RIPE NCCRU17th Feb 2015
2a03:8060::/324.3B × /64RIPE NCCRU17th Feb 2015
2a03:8080::/324.3B × /64RIPE NCCRU3rd Oct 2011
2a03:8280::/2934.4B × /64RIPE NCCRU3rd Oct 2011
2a03:8400::/324.3B × /64RIPE NCCRU14th Jan 2011
2a03:8440::/2934.4B × /64RIPE NCCRU4th Dec 2012
2a03:84c0::/2934.4B × /64RIPE NCCRU4th Dec 2012
2a03:8ce0::/324.3B × /64RIPE NCCRU19th Mar 2015
2a03:93c0::/324.3B × /64RIPE NCCRU7th Dec 2012
2a03:9400::/324.3B × /64RIPE NCCRU14th Jan 2011
2a03:96c0::/324.3B × /64RIPE NCCRU10th Dec 2012
2a03:9740::/324.3B × /64RIPE NCCRU10th Dec 2012
2a03:9860::/324.3B × /64RIPE NCCRU20th Nov 2015
2a03:99e0::/324.3B × /64RIPE NCCRU24th Nov 2015
2a03:9ca0::/324.3B × /64RIPE NCCRU1st Dec 2015
2a03:a040::/324.3B × /64RIPE NCCRU14th Dec 2012
2a03:a180::/324.3B × /64RIPE NCCRU14th Oct 2011
2a03:a1c0::/324.3B × /64RIPE NCCRU17th Dec 2012
2a03:a2a0::/324.3B × /64RIPE NCCRU21st Dec 2015
2a03:a400::/324.3B × /64RIPE NCCRU17th Jan 2011
2a03:a4a0::/324.3B × /64RIPE NCCRU22nd Jan 2016
2a03:a7c0::/324.3B × /64RIPE NCCRU20th Dec 2012
2a03:a840::/324.3B × /64RIPE NCCRU21st Dec 2012
2a03:aa0::/324.3B × /64RIPE NCCRU9th Jul 2014
2a03:ae0::/324.3B × /64RIPE NCCRU9th Jul 2014
2a03:b0e0::/324.3B × /64RIPE NCCRU4th Aug 2016