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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through RIPE NCC, largest first.

Unannounced blocks in United Kingdom

2,614 blocks match, ordered by prefix.

Allocated but unannounced blocks, 651 to 700 of 2614
PrefixAddressesRegistryCountryAllocated
192.77.136.0/23512RIPE NCCGB23rd Aug 1991
192.77.138.0/24256RIPE NCCGB23rd Aug 1991
192.80.46.0/24256RIPE NCCGB7th May 1990
192.81.234.0/24256RIPE NCCGB1st Jan 1984
192.81.61.0/24256RIPE NCCGB31st Aug 1995
192.81.62.0/24256RIPE NCCGB31st Aug 1995
192.82.121.0/24256RIPE NCCGB16th Jul 1990
192.82.124.0/24256RIPE NCCGB30th Jul 1990
192.83.102.0/24256RIPE NCCGB7th Sept 1990
192.83.200.0/24256RIPE NCCGB1st Apr 2005
192.83.202.0/24256RIPE NCCGB19th Sept 1990
192.84.173.0/24256RIPE NCCGB6th Nov 1990
192.84.212.0/24256RIPE NCCGB9th Nov 1990
192.84.80.0/24256RIPE NCCGB26th Oct 1990
192.84.81.0/24256RIPE NCCGB26th Oct 1990
192.84.82.0/24256RIPE NCCGB26th Oct 1990
192.84.83.0/24256RIPE NCCGB26th Oct 1990
192.84.84.0/24256RIPE NCCGB26th Oct 1990
192.86.127.0/24256RIPE NCCGB4th Aug 1993
192.86.134.0/24256RIPE NCCGB6th Dec 1990
192.86.137.0/24256RIPE NCCGB6th Dec 1990
192.86.169.0/24256RIPE NCCGB23rd Apr 1997
192.86.18.0/24256RIPE NCCGB16th Nov 1990
192.86.27.0/24256RIPE NCCGB20th Nov 1990
192.88.10.0/24256RIPE NCCGB5th Dec 1990
192.88.118.0/24256RIPE NCCGB17th Dec 1990
192.88.128.0/24256RIPE NCCGB19th Dec 1990
192.88.133.0/24256RIPE NCCGB19th Dec 1990
192.88.238.0/24256RIPE NCCGB17th Jan 1991
192.88.84.0/24256RIPE NCCGB12th Dec 1990
192.91.201.0/24256RIPE NCCGB18th Jan 1991
192.91.211.0/24256RIPE NCCGB18th Jan 1991
192.92.109.0/24256RIPE NCCGB25th Jan 1991
192.94.111.0/24256RIPE NCCGB22nd Feb 1991
192.94.112.0/221kRIPE NCCGB22nd Feb 1991
192.94.116.0/23512RIPE NCCGB22nd Feb 1991
192.94.172.0/24256RIPE NCCGB28th Feb 1991
192.94.58.0/24256RIPE NCCGB15th Feb 1991
193.104.144.0/24256RIPE NCCGB19th Nov 2009
193.104.181.0/24256RIPE NCCGB30th Dec 2024
193.104.91.0/24256RIPE NCCGB28th Oct 2009
193.105.120.0/24256RIPE NCCGB15th Feb 2010
193.105.170.0/24256RIPE NCCGB3rd Mar 2010
193.106.12.0/221kRIPE NCCGB26th Nov 2009
193.109.12.0/221kRIPE NCCGB4th May 2018
193.109.254.0/23512RIPE NCCGB5th Nov 2001
193.109.50.0/23512RIPE NCCGB25th Jul 2001
193.110.88.0/24256RIPE NCCGB13th Dec 2001
193.114.160.0/198.2kRIPE NCCGB10th Feb 1994
193.118.176.0/212kRIPE NCCGB10th Feb 1994