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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 251 to 300 of 898
PrefixAddressesRegistryCountryAllocated
2a00:1660::/324.3B × /64RIPE NCCES13th Nov 2009
2a00:4560::/324.3B × /64RIPE NCCES20th Feb 2013
2a00:4920::/2934.4B × /64RIPE NCCES22nd Feb 2013
2a00:4f20::/324.3B × /64RIPE NCCES1st Mar 2013
2a00:4fe0::/2934.4B × /64RIPE NCCES4th Mar 2013
2a00:5c00::/324.3B × /64RIPE NCCES21st Dec 2010
2a00:6940::/324.3B × /64RIPE NCCES30th Dec 2011
2a00:69e0::/324.3B × /64RIPE NCCES4th Apr 2013
2a00:6ac0::/324.3B × /64RIPE NCCES30th Dec 2011
2a00:6da0::/324.3B × /64RIPE NCCES11th Apr 2013
2a00:7100::/324.3B × /64RIPE NCCES11th Feb 2011
2a00:7120::/324.3B × /64RIPE NCCES12th Apr 2013
2a00:71c0::/324.3B × /64RIPE NCCES9th Jan 2012
2a00:73c0::/324.3B × /64RIPE NCCES12th Jan 2012
2a00:7e60::/324.3B × /64RIPE NCCES2nd May 2013
2a00:7f00::/324.3B × /64RIPE NCCES14th Feb 2011
2a00:8cc0::/324.3B × /64RIPE NCCES2nd Feb 2012
2a00:8e20::/324.3B × /64RIPE NCCES24th May 2013
2a00:9440::/324.3B × /64RIPE NCCES8th Feb 2012
2a00:99c0::/324.3B × /64RIPE NCCES14th Feb 2012
2a00:a340::/324.3B × /64RIPE NCCES22nd Feb 2012
2a00:a3a0::/324.3B × /64RIPE NCCES20th Jun 2013
2a00:a6c0::/324.3B × /64RIPE NCCES24th Feb 2012
2a00:a840::/324.3B × /64RIPE NCCES27th Feb 2012
2a00:b080::/324.3B × /64RIPE NCCES20th May 2011
2a00:be60::/2934.4B × /64RIPE NCCES25th Jul 2013
2a00:bf80::/324.3B × /64RIPE NCCES24th May 2011
2a00:c140::/324.3B × /64RIPE NCCES16th Mar 2012
2a00:c180::/2934.4B × /64RIPE NCCES24th May 2011
2a00:c420::/324.3B × /64RIPE NCCES2nd Aug 2013
2a00:ce00::/324.3B × /64RIPE NCCES26th Jan 2011
2a00:d080::/324.3B × /64RIPE NCCES26th May 2011
2a00:d280::/324.3B × /64RIPE NCCES26th May 2011
2a00:d9e0::/324.3B × /64RIPE NCCES28th May 2015
2a00:db40::/324.3B × /64RIPE NCCES13th Apr 2012
2a00:dbe0::/324.3B × /64RIPE NCCES6th Sept 2013
2a00:dc80::/2934.4B × /64RIPE NCCES30th May 2011
2a00:e160::/324.3B × /64RIPE NCCES16th Sept 2013
2a00:e1e0::/324.3B × /64RIPE NCCES16th Sept 2013
2a00:e70::/324.3B × /64RIPE NCCES12th Nov 2008
2a00:f380::/324.3B × /64RIPE NCCES1st Jun 2011
2a00:f640::/2934.4B × /64RIPE NCCES9th May 2012
2a00:fe40::/324.3B × /64RIPE NCCES16th May 2012
2a01:1a0::/2934.4B × /64RIPE NCCES11th Aug 2006
2a01:4100::/324.3B × /64RIPE NCCES15th Jun 2015
2a01:4140::/324.3B × /64RIPE NCCES17th Jun 2015
2a01:48::/324.3B × /64RIPE NCCES24th Feb 2006
2a01:48e0::/324.3B × /64RIPE NCCES31st Oct 2013
2a01:4e40::/324.3B × /64RIPE NCCES29th Apr 2025
2a01:5280::/324.3B × /64RIPE NCCES9th Jun 2011