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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through RIPE NCC, largest first.

Unannounced blocks registered through RIPE NCC

25,318 blocks match, ordered by prefix.

Allocated but unannounced blocks, 13801 to 13850 of 25318
PrefixAddressesRegistryCountryAllocated
2a03:d040::/324.3B × /64RIPE NCCUS17th Jan 2013
2a03:d0c0::/324.3B × /64RIPE NCCRU18th Jan 2013
2a03:d100::/324.3B × /64RIPE NCCIT18th Apr 2011
2a03:d20::/324.3B × /64RIPE NCCIR11th Jul 2014
2a03:d240::/324.3B × /64RIPE NCCBG7th Apr 2015
2a03:d2c0::/3017.2B × /64RIPE NCCGB1st Oct 2018
2a03:d300::/324.3B × /64RIPE NCCES18th Apr 2011
2a03:d3c0::/2934.4B × /64RIPE NCCES3rd Mar 2022
2a03:d40::/324.3B × /64RIPE NCCIT9th Oct 2012
2a03:d440::/2934.4B × /64RIPE NCCRO19th Apr 2021
2a03:d4c0::/324.3B × /64RIPE NCCJE21st Jan 2013
2a03:d580::/2934.4B × /64RIPE NCCRU6th May 2026
2a03:d680::/324.3B × /64RIPE NCCNL4th Nov 2011
2a03:d700::/324.3B × /64RIPE NCCRU18th Apr 2011
2a03:d740::/324.3B × /64RIPE NCCIT21st Jan 2013
2a03:d800::/324.3B × /64RIPE NCCNL20th Dec 2010
2a03:d880::/2934.4B × /64RIPE NCCGB4th Nov 2011
2a03:d8c0::/324.3B × /64RIPE NCCDE3rd Sept 2015
2a03:d900::/324.3B × /64RIPE NCCSE18th Apr 2011
2a03:d980::/324.3B × /64RIPE NCCDE4th Nov 2011
2a03:da80::/324.3B × /64RIPE NCCAT4th Nov 2011
2a03:dac0::/324.3B × /64RIPE NCCBG22nd Jan 2013
2a03:db40::/2934.4B × /64RIPE NCCAM10th Aug 2026
2a03:dbc0::/324.3B × /64RIPE NCCDK22nd Jan 2013
2a03:de00::/324.3B × /64RIPE NCCIT8th Feb 2011
2a03:de40::/324.3B × /64RIPE NCCES23rd Jan 2013
2a03:de80::/324.3B × /64RIPE NCCUS8th Nov 2011
2a03:df00::/2934.4B × /64RIPE NCCRS18th Apr 2011
2a03:df80::/324.3B × /64RIPE NCCAL8th Nov 2011
2a03:e000::/324.3B × /64RIPE NCCGB3rd Dec 2010
2a03:e040::/324.3B × /64RIPE NCCRU24th Jan 2013
2a03:e080::/2934.4B × /64RIPE NCCLT16th May 2024
2a03:e0::/324.3B × /64RIPE NCCSK27th Jun 2014
2a03:e180::/2934.4B × /64RIPE NCCSI10th Nov 2011
2a03:e200::/324.3B × /64RIPE NCCMQ8th Feb 2011
2a03:e20::/324.3B × /64RIPE NCCRU14th Jul 2014
2a03:e240::/324.3B × /64RIPE NCCGB24th Jan 2013
2a03:e380::/324.3B × /64RIPE NCCMK10th Nov 2011
2a03:e3c0::/2934.4B × /64RIPE NCCES24th Jan 2013
2a03:e4c0::/2934.4B × /64RIPE NCCES28th Jan 2019
2a03:e500::/324.3B × /64RIPE NCCDK8th May 2025
2a03:e540::/324.3B × /64RIPE NCCRU25th Jan 2013
2a03:e5c0::/324.3B × /64RIPE NCCIT8th Apr 2015
2a03:e640::/324.3B × /64RIPE NCCIT25th Jan 2013
2a03:e700::/2934.4B × /64RIPE NCCIR29th Jul 2025
2a03:e740::/324.3B × /64RIPE NCCIT28th Jan 2013
2a03:e780::/324.3B × /64RIPE NCCRU11th Nov 2011
2a03:e7c0::/324.3B × /64RIPE NCCSA28th Jan 2013
2a03:e800::/324.3B × /64RIPE NCCPL20th Dec 2010
2a03:e8c0::/324.3B × /64RIPE NCCRU29th Jan 2013