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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

906 blocks match, ordered by prefix.

Allocated but unannounced blocks, 51 to 100 of 906
PrefixAddressesRegistryCountryAllocated
185.217.112.0/221kRIPE NCCES14th Aug 2017
185.221.24.0/221kRIPE NCCES14th Sept 2017
185.226.230.0/24256RIPE NCCES19th Oct 2017
185.226.231.0/24256RIPE NCCES19th Oct 2017
185.227.172.0/221kRIPE NCCES24th Oct 2017
185.227.216.0/221kRIPE NCCES25th Oct 2017
185.228.249.0/24256RIPE NCCES27th Jan 2026
185.230.107.0/24256RIPE NCCES23rd Dec 2020
185.234.246.0/24256RIPE NCCES21st Jan 2021
185.239.200.0/221kRIPE NCCES5th Jan 2018
185.244.228.0/221kRIPE NCCES5th Feb 2018
185.246.12.0/221kRIPE NCCES13th Feb 2018
185.246.56.0/221kRIPE NCCES14th Feb 2018
185.247.126.0/24256RIPE NCCES1st Mar 2018
185.247.232.0/221kRIPE NCCES5th Mar 2018
185.25.105.0/24256RIPE NCCES29th Jun 2021
185.251.13.0/24256RIPE NCCES5th Mar 2021
185.253.129.0/24256RIPE NCCES10th Nov 2025
185.255.20.0/221kRIPE NCCES12th Apr 2018
185.28.117.0/24256RIPE NCCES7th Mar 2023
185.28.118.0/24256RIPE NCCES7th Mar 2023
185.30.240.0/221kRIPE NCCES18th Jul 2013
185.39.96.0/221kRIPE NCCES31st Oct 2013
185.50.144.0/221kRIPE NCCES17th Mar 2014
185.63.28.0/221kRIPE NCCES8th Jul 2014
185.67.28.0/221kRIPE NCCES13th Aug 2014
185.75.200.0/221kRIPE NCCES3rd Nov 2014
185.86.208.0/23512RIPE NCCES5th Feb 2015
185.87.63.0/24256RIPE NCCES19th Dec 2019
185.87.84.0/221kRIPE NCCES10th Feb 2015
185.90.252.0/221kRIPE NCCES10th Mar 2015
185.92.80.0/221kRIPE NCCES17th Mar 2015
185.93.112.0/221kRIPE NCCES25th Mar 2015
185.99.60.0/221kRIPE NCCES6th May 2015
188.211.228.0/221kRIPE NCCES8th May 2009
188.214.48.0/212kRIPE NCCES8th May 2009
188.240.43.0/24256RIPE NCCES23rd Jun 2009
188.241.224.0/204.1kRIPE NCCES23rd Jun 2009
188.93.36.0/24256RIPE NCCES8th May 2009
188.95.199.0/24256RIPE NCCES20th Mar 2025
192.101.8.0/24256RIPE NCCES11th Mar 1991
192.112.247.0/24256RIPE NCCES23rd Sept 1991
192.112.70.0/24256RIPE NCCES2nd Aug 1991
192.112.71.0/24256RIPE NCCES2nd Aug 1991
192.112.72.0/24256RIPE NCCES2nd Aug 1991
192.112.73.0/24256RIPE NCCES2nd Aug 1991
192.112.74.0/24256RIPE NCCES2nd Aug 1991
192.112.75.0/24256RIPE NCCES2nd Aug 1991
192.112.76.0/24256RIPE NCCES2nd Aug 1991
192.112.77.0/24256RIPE NCCES2nd Aug 1991