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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 36401 to 36450 of 85346
PrefixAddressesRegistryCountryAllocated
2001:67c:27e8::/4865.5k × /64RIPE NCCSI3rd Apr 2012
2001:67c:27f4::/4865.5k × /64RIPE NCCRU12th Sept 2019
2001:67c:2804::/4865.5k × /64RIPE NCCPL19th May 2016
2001:67c:2814::/4865.5k × /64RIPE NCCNO24th Aug 2016
2001:67c:2820::/4865.5k × /64RIPE NCCAT18th Apr 2012
2001:67c:282c::/4865.5k × /64RIPE NCCBE24th Apr 2012
2001:67c:2830::/4865.5k × /64RIPE NCCPL24th Apr 2012
2001:67c:2834::/4865.5k × /64RIPE NCCSE14th Oct 2020
2001:67c:2838::/4865.5k × /64RIPE NCCDE24th Apr 2012
2001:67c:283c::/4865.5k × /64RIPE NCCES25th Apr 2012
2001:67c:2848::/4865.5k × /64RIPE NCCNL5th Jun 2020
2001:67c:284c::/4865.5k × /64RIPE NCCNL27th Apr 2012
2001:67c:2854::/4865.5k × /64RIPE NCCNL27th Apr 2012
2001:67c:285c::/4865.5k × /64RIPE NCCUA6th May 2025
2001:67c:2860::/4865.5k × /64RIPE NCCNL27th Apr 2012
2001:67c:2868::/4865.5k × /64RIPE NCCFR27th Apr 2012
2001:67c:2874::/4865.5k × /64RIPE NCCDE15th Apr 2021
2001:67c:287c::/4865.5k × /64RIPE NCCSE3rd May 2012
2001:67c:2880::/4865.5k × /64RIPE NCCDE3rd May 2012
2001:67c:2894::/4865.5k × /64RIPE NCCDK9th May 2012
2001:67c:2898::/4865.5k × /64RIPE NCCES11th May 2012
2001:67c:28::/4865.5k × /64RIPE NCCUA26th Mar 2015
2001:67c:28a8::/4865.5k × /64RIPE NCCNL15th May 2012
2001:67c:28ac::/4865.5k × /64RIPE NCCNO15th May 2012
2001:67c:28b0::/4865.5k × /64RIPE NCCNO15th May 2012
2001:67c:28b4::/4865.5k × /64RIPE NCCNO15th May 2012
2001:67c:28c0::/4865.5k × /64RIPE NCCAT16th May 2012
2001:67c:28c8::/4865.5k × /64RIPE NCCAT25th Feb 2021
2001:67c:28d0::/4865.5k × /64RIPE NCCDE4th Nov 2020
2001:67c:28d4::/4865.5k × /64RIPE NCCRO31st Jul 2025
2001:67c:28e0::/4865.5k × /64RIPE NCCDE23rd May 2012
2001:67c:28f8::/4865.5k × /64RIPE NCCLT12th Aug 2015
2001:67c:2900::/4865.5k × /64RIPE NCCFI18th Dec 2020
2001:67c:290c::/4865.5k × /64RIPE NCCRU22nd Dec 2020
2001:67c:2914::/4865.5k × /64RIPE NCCFR21st Jan 2021
2001:67c:2928::/4865.5k × /64RIPE NCCDE1st Feb 2021
2001:67c:2930::/4865.5k × /64RIPE NCCSI3rd Feb 2021
2001:67c:2934::/4865.5k × /64RIPE NCCPL3rd Feb 2021
2001:67c:2938::/4865.5k × /64RIPE NCCAT7th May 2026
2001:67c:2940::/4865.5k × /64RIPE NCCRU17th Feb 2021
2001:67c:2954::/4865.5k × /64RIPE NCCRU19th Feb 2021
2001:67c:2958::/4865.5k × /64RIPE NCCGB19th Feb 2021
2001:67c:2970::/4865.5k × /64RIPE NCCFI26th Feb 2021
2001:67c:297c::/4865.5k × /64RIPE NCCDE10th Mar 2021
2001:67c:2984::/4865.5k × /64RIPE NCCCH30th May 2012
2001:67c:2988::/47131k × /64RIPE NCCTR31st May 2012
2001:67c:2990::/4865.5k × /64RIPE NCCPL25th Jul 2019
2001:67c:2998::/4865.5k × /64RIPE NCCFR31st May 2012
2001:67c:29a0::/4865.5k × /64RIPE NCCTR4th Jun 2012
2001:67c:29bc::/4865.5k × /64RIPE NCCUS4th Mar 2020