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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks in Russia

2,050 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1701 to 1750 of 2050
PrefixAddressesRegistryCountryAllocated
2a14:e700::/2934.4B × /64RIPE NCCRU5th Feb 2025
31.210.138.0/23512RIPE NCCRU4th May 2011
31.41.242.0/24256RIPE NCCRU6th Apr 2011
31.41.244.0/24256RIPE NCCRU6th Apr 2011
31.41.8.0/221kRIPE NCCRU11th Mar 2011
31.7.224.0/204.1kRIPE NCCRU14th Apr 2011
37.18.84.0/24256RIPE NCCRU20th Dec 2011
37.230.188.0/221kRIPE NCCRU11th Apr 2012
37.233.82.0/23512RIPE NCCRU13th Apr 2012
37.233.84.0/23512RIPE NCCRU13th Apr 2012
37.233.86.0/24256RIPE NCCRU13th Apr 2012
37.235.64.0/212kRIPE NCCRU16th Apr 2012
37.9.128.0/212kRIPE NCCRU14th Dec 2011
45.10.216.0/221kRIPE NCCRU25th Apr 2019
45.11.94.0/24256RIPE NCCRU26th Apr 2019
45.130.168.0/221kRIPE NCCRU18th Jul 2019
45.130.212.0/221kRIPE NCCRU18th Jul 2019
45.133.96.0/221kRIPE NCCRU25th Jul 2019
45.137.188.0/24256RIPE NCCRU6th Aug 2019
45.139.152.0/221kRIPE NCCRU9th Aug 2019
45.141.219.0/24256RIPE NCCRU14th Jan 2025
45.144.44.0/221kRIPE NCCRU22nd Aug 2019
45.145.163.0/24256RIPE NCCRU26th Aug 2019
45.145.168.0/24256RIPE NCCRU26th Aug 2019
45.145.5.0/24256RIPE NCCRU23rd Aug 2019
45.145.6.0/24256RIPE NCCRU23rd Aug 2019
45.145.7.0/24256RIPE NCCRU23rd Aug 2019
45.151.228.0/221kRIPE NCCRU10th Sept 2019
45.152.84.0/24256RIPE NCCRU11th Sept 2019
45.152.85.0/24256RIPE NCCRU11th Sept 2019
45.152.86.0/24256RIPE NCCRU11th Sept 2019
45.152.87.0/24256RIPE NCCRU11th Sept 2019
45.154.0.0/24256RIPE NCCRU16th Sept 2019
45.154.1.0/24256RIPE NCCRU16th Sept 2019
45.154.184.0/221kRIPE NCCRU17th Sept 2019
45.154.2.0/23512RIPE NCCRU16th Sept 2019
45.155.6.0/24256RIPE NCCRU17th Sept 2019
45.156.20.0/24256RIPE NCCRU19th Sept 2019
45.156.21.0/24256RIPE NCCRU19th Sept 2019
45.156.22.0/23512RIPE NCCRU19th Sept 2019
45.156.24.0/221kRIPE NCCRU19th Sept 2019
45.159.136.0/221kRIPE NCCRU1st Oct 2019
45.66.12.0/221kRIPE NCCRU12th Feb 2019
45.8.107.0/24256RIPE NCCRU8th Jan 2025
45.8.144.0/221kRIPE NCCRU15th Apr 2019
45.80.216.0/221kRIPE NCCRU16th May 2019
45.82.12.0/24256RIPE NCCRU21st May 2019
45.85.68.0/221kRIPE NCCRU4th Jun 2019
45.87.152.0/221kRIPE NCCRU14th Jun 2019
45.9.164.0/221kRIPE NCCRU18th Apr 2019