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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,502 blocks match, ordered by prefix.

Allocated but unannounced blocks, 67901 to 67950 of 84502
PrefixAddressesRegistryCountryAllocated
2a01:44a0::/324.3B × /64RIPE NCCIT25th Oct 2013
2a01:44c0::/324.3B × /64RIPE NCCIS24th May 2012
2a01:44e0::/324.3B × /64RIPE NCCUA28th Oct 2013
2a01:4500::/324.3B × /64RIPE NCCPS25th Feb 2011
2a01:458::/324.3B × /64RIPE NCCIR14th Aug 2007
2a01:45e0::/324.3B × /64RIPE NCCIT29th Oct 2013
2a01:4600::/324.3B × /64RIPE NCCBH28th Jan 2011
2a01:4620::/324.3B × /64RIPE NCCFR17th Jun 2015
2a01:4660::/324.3B × /64RIPE NCCPL29th Oct 2013
2a01:46a0::/324.3B × /64RIPE NCCSA29th Oct 2013
2a01:46e0::/324.3B × /64RIPE NCCGB29th Oct 2013
2a01:4720::/324.3B × /64RIPE NCCRU29th Oct 2013
2a01:4760::/2934.4B × /64RIPE NCCGB30th Oct 2013
2a01:478::/2934.4B × /64RIPE NCCBA23rd Aug 2007
2a01:47a0::/324.3B × /64RIPE NCCGE30th Oct 2013
2a01:47e0::/324.3B × /64RIPE NCCUA30th Oct 2013
2a01:4820::/324.3B × /64RIPE NCCIE30th Oct 2013
2a01:4880::/324.3B × /64RIPE NCCRU7th Jun 2011
2a01:48::/324.3B × /64RIPE NCCES24th Feb 2006
2a01:48e0::/324.3B × /64RIPE NCCES31st Oct 2013
2a01:4900::/2934.4B × /64RIPE NCCBH25th Feb 2011
2a01:4920::/324.3B × /64RIPE NCCRU31st Oct 2013
2a01:4940::/324.3B × /64RIPE NCCRU29th May 2012
2a01:4960::/324.3B × /64RIPE NCCCH4th Nov 2013
2a01:49c0::/324.3B × /64RIPE NCCRU29th May 2012
2a01:4a20::/324.3B × /64RIPE NCCFR6th Nov 2013
2a01:4ba0::/2934.4B × /64RIPE NCCAZ7th Nov 2013
2a01:4be0::/324.3B × /64RIPE NCCHU7th Nov 2013
2a01:4ca0::/324.3B × /64RIPE NCCRU8th Nov 2013
2a01:4d00::/324.3B × /64RIPE NCCRU25th Feb 2011
2a01:4d20::/324.3B × /64RIPE NCCDK11th Nov 2013
2a01:4e00::/324.3B × /64RIPE NCCFR28th Jan 2011
2a01:4e20::/324.3B × /64RIPE NCCPL12th Nov 2013
2a01:4e40::/324.3B × /64RIPE NCCES29th Apr 2025
2a01:4e80::/324.3B × /64RIPE NCCIT8th Jun 2011
2a01:4ea0::/324.3B × /64RIPE NCCRU13th Nov 2013
2a01:4ec0::/324.3B × /64RIPE NCCIT30th May 2012
2a01:4ee0::/324.3B × /64RIPE NCCRU13th Nov 2013
2a01:4f20::/324.3B × /64RIPE NCCFR13th Nov 2013
2a01:4f60::/324.3B × /64RIPE NCCNL13th Nov 2013
2a01:4f80::/2934.4B × /64RIPE NCCDE8th Jun 2011
2a01:5000::/2934.4B × /64RIPE NCCDE3rd Dec 2010
2a01:5080::/324.3B × /64RIPE NCCRU8th Jun 2011
2a01:508::/324.3B × /64RIPE NCCRU12th Oct 2007
2a01:50::/324.3B × /64RIPE NCCGB27th Feb 2006
2a01:5100::/324.3B × /64RIPE NCCIE28th Feb 2011
2a01:5120::/324.3B × /64RIPE NCCCY18th Nov 2013
2a01:5160::/324.3B × /64RIPE NCCME18th Nov 2013
2a01:5180::/324.3B × /64RIPE NCCGB9th Jun 2011
2a01:5220::/324.3B × /64RIPE NCCRU19th Nov 2013