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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

950 blocks match, ordered by prefix.

Allocated but unannounced blocks, 501 to 550 of 950
PrefixAddressesRegistryCountryAllocated
198.206.197.0/24256RIPE NCCCH1st Sept 1993
198.206.200.0/23512RIPE NCCCH1st Sept 1993
198.206.202.0/24256RIPE NCCCH1st Sept 1993
198.99.148.0/24256RIPE NCCCH1st Sept 1993
198.99.222.0/24256RIPE NCCCH1st Sept 1993
199.103.106.0/24256ARINCH26th Jun 1994
199.43.246.0/23512RIPE NCCCH1st Sept 1993
199.91.16.0/204.1kRIPE NCCCH1st Sept 1993
2001:1558::/324.3B × /64RIPE NCCCH25th Aug 2003
2001:3140::/2934.4B × /64RIPE NCCCH5th Sept 2024
2001:678:294::/4865.5k × /64RIPE NCCCH27th Oct 2016
2001:678:298::/4865.5k × /64RIPE NCCCH27th Oct 2016
2001:678:328::/4865.5k × /64RIPE NCCCH15th Dec 2016
2001:678:4c4::/4865.5k × /64RIPE NCCCH6th Jul 2017
2001:678:50c::/4865.5k × /64RIPE NCCCH30th Dec 2024
2001:678:64c::/4865.5k × /64RIPE NCCCH18th Jun 2024
2001:678:678::/4865.5k × /64RIPE NCCCH23rd Apr 2018
2001:678:748::/4865.5k × /64RIPE NCCCH9th Nov 2020
2001:678:af8::/4865.5k × /64RIPE NCCCH29th Aug 2019
2001:678:b84::/4865.5k × /64RIPE NCCCH22nd Nov 2019
2001:678:bfc::/4865.5k × /64RIPE NCCCH21st Jan 2020
2001:678:fbc::/4865.5k × /64RIPE NCCCH14th Jul 2021
2001:67c:111c::/4865.5k × /64RIPE NCCCH11th Dec 2012
2001:67c:1230::/46262k × /64RIPE NCCCH18th Nov 2010
2001:67c:126c::/4865.5k × /64RIPE NCCCH30th Aug 2012
2001:67c:136c::/4865.5k × /64RIPE NCCCH20th Feb 2013
2001:67c:13c0::/4865.5k × /64RIPE NCCCH4th Mar 2013
2001:67c:1570::/4865.5k × /64RIPE NCCCH25th Apr 2024
2001:67c:160::/4865.5k × /64RIPE NCCCH19th Feb 2010
2001:67c:16e0::/4865.5k × /64RIPE NCCCH11th Aug 2016
2001:67c:170::/4865.5k × /64RIPE NCCCH24th Feb 2010
2001:67c:1780::/4865.5k × /64RIPE NCCCH27th May 2013
2001:67c:1818::/4865.5k × /64RIPE NCCCH15th Dec 2015
2001:67c:1948::/4865.5k × /64RIPE NCCCH31st Aug 2022
2001:67c:19fc::/4865.5k × /64RIPE NCCCH14th Jul 2015
2001:67c:1bd0::/4865.5k × /64RIPE NCCCH30th Jul 2013
2001:67c:2030::/4865.5k × /64RIPE NCCCH20th Feb 2026
2001:67c:2220::/4865.5k × /64RIPE NCCCH29th Apr 2011
2001:67c:2230::/4865.5k × /64RIPE NCCCH2nd Nov 2017
2001:67c:2238::/4865.5k × /64RIPE NCCCH6th May 2011
2001:67c:22e8::/4865.5k × /64RIPE NCCCH3rd Jun 2011
2001:67c:2540::/4865.5k × /64RIPE NCCCH27th Oct 2011
2001:67c:2614::/4865.5k × /64RIPE NCCCH16th Dec 2011
2001:67c:268::/4865.5k × /64RIPE NCCCH5th Jul 2010
2001:67c:2984::/4865.5k × /64RIPE NCCCH30th May 2012
2001:67c:2a5c::/4865.5k × /64RIPE NCCCH13th Jul 2012
2001:67c:2b54::/4865.5k × /64RIPE NCCCH2nd Sept 2013
2001:67c:2be0::/4865.5k × /64RIPE NCCCH30th Oct 2020
2001:67c:2c08::/4865.5k × /64RIPE NCCCH27th Oct 2014
2001:67c:2c0c::/4865.5k × /64RIPE NCCCH27th Oct 2014