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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

907 blocks match, ordered by prefix.

Allocated but unannounced blocks, 201 to 250 of 907
PrefixAddressesRegistryCountryAllocated
2.152.36.0/221kRIPE NCCES3rd Nov 2010
2.152.42.0/23512RIPE NCCES3rd Nov 2010
2.152.44.0/23512RIPE NCCES3rd Nov 2010
2.152.46.0/24256RIPE NCCES3rd Nov 2010
2.152.47.0/24256RIPE NCCES3rd Nov 2010
2.152.48.0/212kRIPE NCCES3rd Nov 2010
2.152.56.0/23512RIPE NCCES3rd Nov 2010
2.152.58.0/23512RIPE NCCES3rd Nov 2010
2.152.6.0/23512RIPE NCCES3rd Nov 2010
2.152.60.0/221kRIPE NCCES3rd Nov 2010
2.152.72.0/23512RIPE NCCES3rd Nov 2010
2.152.75.0/24256RIPE NCCES3rd Nov 2010
2.152.76.0/23512RIPE NCCES3rd Nov 2010
2.152.80.0/212kRIPE NCCES3rd Nov 2010
2.152.89.0/24256RIPE NCCES3rd Nov 2010
2.152.90.0/23512RIPE NCCES3rd Nov 2010
2.152.96.0/198.2kRIPE NCCES3rd Nov 2010
2.58.215.0/24256RIPE NCCES8th Jan 2025
2001:1a58::/324.3B × /64RIPE NCCES8th Apr 2009
2001:31c0::/2934.4B × /64RIPE NCCES6th Sept 2024
2001:4108::/324.3B × /64RIPE NCCES10th Sept 2004
2001:4c60::/324.3B × /64RIPE NCCES9th May 2005
2001:4d10::/324.3B × /64RIPE NCCES20th Jul 2005
2001:678:1098::/4865.5k × /64RIPE NCCES4th Jun 2025
2001:678:1118::/4865.5k × /64RIPE NCCES29th Oct 2025
2001:678:111c::/4865.5k × /64RIPE NCCES29th Oct 2025
2001:678:115c::/4865.5k × /64RIPE NCCES25th Nov 2025
2001:678:1208::/4865.5k × /64RIPE NCCES18th Mar 2026
2001:678:1228::/4865.5k × /64RIPE NCCES2nd Apr 2026
2001:678:21c::/4865.5k × /64RIPE NCCES18th May 2026
2001:678:2f4::/4865.5k × /64RIPE NCCES7th Dec 2016
2001:678:2f8::/4865.5k × /64RIPE NCCES7th Dec 2016
2001:678:2fc::/4865.5k × /64RIPE NCCES7th Dec 2016
2001:678:420::/4865.5k × /64RIPE NCCES10th Sept 2018
2001:678:48::/4865.5k × /64RIPE NCCES1st Sept 2011
2001:678:930::/4865.5k × /64RIPE NCCES8th Feb 2019
2001:678:dd4::/4865.5k × /64RIPE NCCES2nd Jul 2020
2001:67c:11b4::/4865.5k × /64RIPE NCCES14th Jan 2013
2001:67c:11e0::/4865.5k × /64RIPE NCCES26th Sept 2024
2001:67c:1714::/4865.5k × /64RIPE NCCES15th Apr 2021
2001:67c:1b3c::/4865.5k × /64RIPE NCCES4th Jun 2025
2001:67c:2294::/4865.5k × /64RIPE NCCES18th May 2011
2001:67c:25f0::/4865.5k × /64RIPE NCCES29th Jul 2015
2001:67c:283c::/4865.5k × /64RIPE NCCES25th Apr 2012
2001:67c:2898::/4865.5k × /64RIPE NCCES11th May 2012
2001:67c:2a3c::/4865.5k × /64RIPE NCCES5th Jul 2012
2001:67c:400::/4865.5k × /64RIPE NCCES9th Feb 2018
2001:67c:7d8::/4865.5k × /64RIPE NCCES16th Oct 2014
2001:67c:820::/4865.5k × /64RIPE NCCES13th Aug 2021
2001:67c:98c::/4865.5k × /64RIPE NCCES25th Mar 2022