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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

2,050 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1901 to 1950 of 2050
PrefixAddressesRegistryCountryAllocated
91.198.75.0/24256RIPE NCCRU30th Aug 2007
91.199.232.0/24256RIPE NCCRU26th Jun 2009
91.200.149.0/24256RIPE NCCRU19th Apr 2018
91.200.164.0/221kRIPE NCCRU17th Oct 2007
91.200.228.0/221kRIPE NCCRU7th Nov 2007
91.201.238.0/24256RIPE NCCRU22nd Jan 2008
91.201.24.0/24256RIPE NCCRU16th Nov 2007
91.201.8.0/23512RIPE NCCRU13th Nov 2007
91.203.105.0/24256RIPE NCCRU5th Aug 2010
91.203.224.0/24256RIPE NCCRU14th May 2008
91.203.235.0/24256RIPE NCCRU15th May 2008
91.203.252.0/221kRIPE NCCRU28th Dec 2011
91.204.100.0/221kRIPE NCCRU9th Jun 2008
91.205.252.0/221kRIPE NCCRU3rd Oct 2008
91.207.4.0/24256RIPE NCCRU11th Sept 2008
91.207.40.0/23512RIPE NCCRU23rd Sept 2008
91.207.71.0/24256RIPE NCCRU16th Jan 2025
91.207.9.0/24256RIPE NCCRU11th Sept 2008
91.208.119.0/24256RIPE NCCRU8th Aug 2008
91.208.132.0/24256RIPE NCCRU13th Aug 2008
91.209.208.0/24256RIPE NCCRU6th Nov 2023
91.211.16.0/221kRIPE NCCRU26th Nov 2008
91.211.2.0/24256RIPE NCCRU30th Jun 2020
91.211.76.0/221kRIPE NCCRU5th Dec 2008
91.212.171.0/24256RIPE NCCRU27th Apr 2009
91.212.239.0/24256RIPE NCCRU4th Jun 2009
91.212.57.0/24256RIPE NCCRU12th Feb 2009
91.212.7.0/24256RIPE NCCRU27th Jan 2009
91.212.97.0/24256RIPE NCCRU25th Mar 2009
91.213.166.0/24256RIPE NCCRU19th Aug 2009
91.213.48.0/24256RIPE NCCRU9th Dec 2024
91.214.120.0/23512RIPE NCCRU3rd Jun 2009
91.214.212.0/221kRIPE NCCRU29th Jun 2009
91.214.96.0/221kRIPE NCCRU28th May 2009
91.215.168.0/221kRIPE NCCRU21st Aug 2009
91.215.212.0/221kRIPE NCCRU26th Aug 2009
91.215.244.0/221kRIPE NCCRU1st Sept 2009
91.215.84.0/24256RIPE NCCRU21st Jul 2009
91.216.175.0/24256RIPE NCCRU10th Jun 2010
91.216.3.0/24256RIPE NCCRU14th Apr 2010
91.216.48.0/24256RIPE NCCRU4th Aug 2011
91.217.129.0/24256RIPE NCCRU12th Aug 2010
91.217.74.0/24256RIPE NCCRU9th Sept 2010
91.217.75.0/24256RIPE NCCRU9th Sept 2010
91.219.124.0/221kRIPE NCCRU11th Oct 2010
91.219.192.0/221kRIPE NCCRU21st Oct 2010
91.219.36.0/221kRIPE NCCRU10th Sept 2010
91.220.188.0/24256RIPE NCCRU30th Nov 2010
91.220.46.0/24256RIPE NCCRU19th Oct 2010
91.220.92.0/24256RIPE NCCRU1st Nov 2010