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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks in United Kingdom

2,628 blocks match, ordered by prefix.

Allocated but unannounced blocks, 251 to 300 of 2628
PrefixAddressesRegistryCountryAllocated
185.20.2.0/24256RIPE NCCGB17th Jul 2020
185.200.92.0/221kRIPE NCCGB21st Apr 2017
185.201.96.0/221kRIPE NCCGB1st May 2017
185.202.232.0/221kRIPE NCCGB10th May 2017
185.202.88.0/221kRIPE NCCGB8th May 2017
185.203.100.0/221kRIPE NCCGB12th May 2017
185.203.12.0/221kRIPE NCCGB11th May 2017
185.204.236.0/221kRIPE NCCGB23rd May 2017
185.204.28.0/221kRIPE NCCGB17th May 2017
185.204.44.0/221kRIPE NCCGB18th May 2017
185.205.28.0/221kRIPE NCCGB24th May 2017
185.205.36.0/221kRIPE NCCGB24th May 2017
185.206.216.0/221kRIPE NCCGB6th Jun 2017
185.206.72.0/221kRIPE NCCGB31st May 2017
185.207.180.0/221kRIPE NCCGB9th Jun 2017
185.207.200.0/221kRIPE NCCGB9th Jun 2017
185.207.23.0/24256RIPE NCCGB11th Jan 2024
185.209.83.0/24256RIPE NCCGB5th Nov 2020
185.21.133.0/24256RIPE NCCGB20th Jul 2020
185.210.104.0/221kRIPE NCCGB27th Jun 2017
185.210.161.0/24256RIPE NCCGB6th Nov 2020
185.211.78.0/24256RIPE NCCGB2nd Jul 2021
185.216.108.0/221kRIPE NCCGB4th Aug 2017
185.216.137.0/24256RIPE NCCGB7th Aug 2017
185.216.48.0/24256RIPE NCCGB16th Nov 2020
185.217.104.0/221kRIPE NCCGB14th Aug 2017
185.217.132.0/221kRIPE NCCGB14th Aug 2017
185.22.164.0/221kRIPE NCCGB2nd Apr 2013
185.220.160.0/221kRIPE NCCGB13th Sept 2017
185.221.4.0/221kRIPE NCCGB14th Sept 2017
185.221.92.0/221kRIPE NCCGB18th Sept 2017
185.222.107.0/24256RIPE NCCGB20th Jan 2025
185.223.162.0/24256RIPE NCCGB7th Dec 2020
185.224.12.0/221kRIPE NCCGB5th Oct 2017
185.224.232.0/221kRIPE NCCGB11th Oct 2017
185.224.68.0/221kRIPE NCCGB6th Oct 2017
185.226.208.0/221kRIPE NCCGB19th Oct 2017
185.227.196.0/221kRIPE NCCGB24th Oct 2017
185.228.252.0/221kRIPE NCCGB30th Oct 2017
185.23.100.0/221kRIPE NCCGB9th Apr 2013
185.23.176.0/221kRIPE NCCGB11th Apr 2013
185.23.4.0/24256RIPE NCCGB14th Jul 2022
185.23.56.0/221kRIPE NCCGB8th Apr 2013
185.232.244.0/221kRIPE NCCGB21st Nov 2017
185.232.46.0/24256RIPE NCCGB8th Sept 2021
185.234.247.0/24256RIPE NCCGB21st Jan 2021
185.235.32.0/24256RIPE NCCGB22nd Jan 2021
185.236.124.0/221kRIPE NCCGB12th Dec 2017
185.237.196.0/221kRIPE NCCGB20th Dec 2017
185.238.117.0/24256RIPE NCCGB22nd Dec 2017