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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

2,663 blocks match, ordered by prefix.

Allocated but unannounced blocks, 901 to 950 of 2663
PrefixAddressesRegistryCountryAllocated
194.110.244.0/24256RIPE NCCGB16th Apr 2007
194.110.74.0/24256RIPE NCCGB22nd Nov 2019
194.113.212.0/221kRIPE NCCGB24th May 2018
194.116.160.0/23512RIPE NCCGB19th Jan 2005
194.116.238.0/24256RIPE NCCGB3rd Sept 2025
194.117.54.128/25128RIPE NCCGB25th Nov 2005
194.117.73.0/24256RIPE NCCGB13th Oct 2025
194.126.188.0/221kRIPE NCCGB22nd Sept 2006
194.126.247.0/24256RIPE NCCGB24th Feb 2005
194.127.154.0/23512RIPE NCCGB9th Feb 1995
194.13.2.0/23512RIPE NCCGB7th Apr 1994
194.143.158.0/23512RIPE NCCGB21st Mar 2005
194.145.148.0/23512RIPE NCCGB27th Aug 1999
194.145.154.0/24256RIPE NCCGB2nd Nov 2004
194.146.176.0/221kRIPE NCCGB27th Oct 2003
194.146.71.0/24256RIPE NCCGB2nd Oct 1995
194.15.234.0/23512RIPE NCCGB18th Oct 2019
194.15.238.0/23512RIPE NCCGB18th Oct 2019
194.152.40.0/23512RIPE NCCGB15th May 2008
194.153.144.0/24256RIPE NCCGB24th Feb 2000
194.153.154.0/25128RIPE NCCGB7th Jul 2010
194.153.159.128/2664RIPE NCCGB20th Nov 2025
194.153.184.0/24256RIPE NCCGB12th Mar 2012
194.164.104.0/24256RIPE NCCGB7th Mar 1996
194.164.231.0/24256RIPE NCCGB7th Mar 1996
194.164.97.0/24256RIPE NCCGB7th Mar 1996
194.169.140.0/221kRIPE NCCGB20th Sept 1996
194.169.144.0/23512RIPE NCCGB20th Sept 1996
194.169.16.0/204.1kRIPE NCCGB13th Jun 1995
194.169.195.0/24256RIPE NCCGB30th Nov 2006
194.169.217.0/24256RIPE NCCGB8th Dec 2006
194.169.234.0/24256RIPE NCCGB14th Dec 2006
194.169.64.0/204.1kRIPE NCCGB4th Jun 1995
194.176.128.0/198.2kRIPE NCCGB4th Jun 1999
194.180.248.0/24256RIPE NCCGB24th Feb 2025
194.187.118.0/24256RIPE NCCGB22nd Jul 2021
194.213.28.0/24256RIPE NCCGB12th Sept 2005
194.222.0.0/198.2kRIPE NCCGB21st Dec 1995
194.222.128.0/1732.8kRIPE NCCGB26th Jun 1996
194.222.32.0/198.2kRIPE NCCGB27th Mar 1996
194.222.64.0/1816.4kRIPE NCCGB26th Jun 1996
194.238.128.0/1732.8kRIPE NCCGB2nd Feb 1996
194.238.45.0/24256RIPE NCCGB2nd Feb 1996
194.238.46.0/24256RIPE NCCGB2nd Feb 1996
194.238.78.0/24256RIPE NCCGB2nd Feb 1996
194.242.55.0/24256RIPE NCCGB4th Feb 2004
194.246.98.0/24256RIPE NCCGB11th Feb 2004
194.28.124.0/221kRIPE NCCGB17th Nov 2010
194.28.244.0/221kRIPE NCCGB28th May 2010
194.30.166.0/24256RIPE NCCGB20th Apr 2005