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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 201 to 250 of 2614
PrefixAddressesRegistryCountryAllocated
185.168.136.0/221kRIPE NCCGB19th Sept 2016
185.169.120.0/221kRIPE NCCGB23rd Sept 2016
185.169.168.0/221kRIPE NCCGB26th Sept 2016
185.170.100.0/221kRIPE NCCGB29th Sept 2016
185.170.152.0/24256RIPE NCCGB30th Sept 2016
185.171.188.0/221kRIPE NCCGB6th Oct 2016
185.171.201.0/24256RIPE NCCGB6th Aug 2020
185.172.244.0/221kRIPE NCCGB13th Oct 2016
185.175.66.0/24256RIPE NCCGB11th Dec 2025
185.178.100.0/221kRIPE NCCGB18th Nov 2016
185.178.188.0/221kRIPE NCCGB22nd Nov 2016
185.178.230.0/24256RIPE NCCGB23rd Nov 2016
185.178.36.0/221kRIPE NCCGB17th Nov 2016
185.180.4.0/221kRIPE NCCGB1st Dec 2016
185.184.218.0/24256RIPE NCCGB29th Jun 2021
185.185.42.0/24256RIPE NCCGB10th Jan 2017
185.185.84.0/221kRIPE NCCGB11th Jan 2017
185.186.100.0/221kRIPE NCCGB18th Jan 2017
185.186.164.0/221kRIPE NCCGB19th Jan 2017
185.188.220.0/221kRIPE NCCGB7th Feb 2017
185.189.232.0/221kRIPE NCCGB13th Feb 2017
185.19.108.0/221kRIPE NCCGB21st Feb 2013
185.19.144.0/221kRIPE NCCGB21st Feb 2013
185.190.12.0/221kRIPE NCCGB14th Feb 2017
185.190.128.0/221kRIPE NCCGB17th Feb 2017
185.190.60.0/221kRIPE NCCGB15th Feb 2017
185.192.164.0/221kRIPE NCCGB2nd Mar 2017
185.192.92.0/221kRIPE NCCGB1st Mar 2017
185.193.96.0/221kRIPE NCCGB7th Mar 2017
185.195.160.0/221kRIPE NCCGB21st Mar 2017
185.198.15.0/24256RIPE NCCGB7th Jan 2025
185.198.212.0/221kRIPE NCCGB11th Apr 2017
185.199.20.0/221kRIPE NCCGB12th Apr 2017
185.199.72.0/221kRIPE NCCGB13th Apr 2017
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
185.203.91.0/24256RIPE NCCGB27th Jan 2026
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
185.206.128.0/221kRIPE NCCGB1st Jun 2017
185.206.216.0/221kRIPE NCCGB6th Jun 2017
185.206.72.0/221kRIPE NCCGB31st May 2017