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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

950 blocks match, ordered by prefix.

Allocated but unannounced blocks, 251 to 300 of 950
PrefixAddressesRegistryCountryAllocated
2001:7f8:c0::/4865.5k × /64RIPE NCCIT29th Nov 2017
2001:7f8:c5::/4865.5k × /64RIPE NCCIT9th Feb 2018
2001:7f8:cf::/4865.5k × /64RIPE NCCIT13th Nov 2018
2001:8d0::/2934.4B × /64RIPE NCCIT2nd Jul 2007
2001:a30::/2934.4B × /64RIPE NCCIT27th Nov 2002
2001:a80::/324.3B × /64RIPE NCCIT10th Jan 2003
2001:b40::/324.3B × /64RIPE NCCIT24th Feb 2003
2001:df0:c840::/4865.5k × /64APNICIT2nd Jun 2022
2001:df0:d840::/4865.5k × /64APNICIT16th Jun 2022
204.154.94.0/23512ARINIT25th Oct 2010
204.231.237.0/24256ARINIT21st Apr 1995
204.79.130.0/23512ARINIT14th Dec 1994
204.79.132.0/24256ARINIT14th Dec 1994
204.79.240.0/24256ARINIT19th Dec 1994
212.102.122.0/24256RIPE NCCIT19th Dec 2019
212.108.96.0/24256RIPE NCCIT28th Jul 2025
212.2.40.0/221kRIPE NCCIT23rd Feb 1999
212.46.160.0/212kRIPE NCCIT21st Dec 2007
212.6.60.0/24256RIPE NCCIT15th Jan 2020
213.163.239.0/24256RIPE NCCIT10th Feb 2003
213.175.0.0/198.2kRIPE NCCIT18th Jan 2000
217.118.144.0/204.1kRIPE NCCIT11th Feb 2004
217.12.160.0/204.1kRIPE NCCIT24th Aug 2000
217.171.160.0/204.1kRIPE NCCIT2nd Apr 2001
217.180.61.0/24256RIPE NCCIT2nd Mar 2001
217.65.65.0/24256RIPE NCCIT1st May 2025
217.70.15.0/24256RIPE NCCIT24th Sept 2025
23.166.52.0/24256ARINIT23rd Oct 2026
2602:f29e::/4016.8M × /64ARINIT16th Oct 2026
2605:2e00::/36268M × /64ARINIT15th Aug 2014
2620:28:8000::/4865.5k × /64ARINIT27th Apr 2011
2a00:1088::/324.3B × /64RIPE NCCIT2nd Jul 2009
2a00:10c8::/324.3B × /64RIPE NCCIT9th Jul 2009
2a00:1d68::/324.3B × /64RIPE NCCIT15th Mar 2010
2a00:1f48::/2934.4B × /64RIPE NCCIT16th Apr 2010
2a00:40e0::/324.3B × /64RIPE NCCIT15th Feb 2013
2a00:4220::/324.3B × /64RIPE NCCIT18th Feb 2013
2a00:46c0::/324.3B × /64RIPE NCCIT28th Nov 2011
2a00:4a40::/324.3B × /64RIPE NCCIT30th Nov 2011
2a00:5680::/324.3B × /64RIPE NCCIT28th Apr 2011
2a00:57a0::/324.3B × /64RIPE NCCIT14th Mar 2013
2a00:5b40::/324.3B × /64RIPE NCCIT13th Dec 2011
2a00:5b80::/2934.4B × /64RIPE NCCIT29th Apr 2011
2a00:65c0::/324.3B × /64RIPE NCCIT27th Dec 2011
2a00:69a0::/324.3B × /64RIPE NCCIT4th Apr 2013
2a00:6a60::/324.3B × /64RIPE NCCIT5th Apr 2013
2a00:72a0::/324.3B × /64RIPE NCCIT16th Apr 2013
2a00:7ca0::/324.3B × /64RIPE NCCIT29th Apr 2013
2a00:8020::/324.3B × /64RIPE NCCIT3rd May 2013
2a00:80e0::/324.3B × /64RIPE NCCIT6th May 2013