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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

2,036 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1 to 50 of 2036
PrefixAddressesRegistryCountryAllocated
109.106.20.0/221kRIPE NCCRU12th Oct 2018
109.107.146.0/24256RIPE NCCRU21st Oct 2021
109.172.16.0/212kRIPE NCCRU18th Nov 2009
109.172.44.0/23512RIPE NCCRU18th Nov 2009
109.205.144.0/212kRIPE NCCRU12th Feb 2010
109.207.167.0/24256RIPE NCCRU22nd Feb 2010
109.232.111.0/24256RIPE NCCRU2nd Dec 2009
109.94.192.0/204.1kRIPE NCCRU27th Oct 2009
111.88.172.0/221kRIPE NCCRU12th Jun 2009
111.88.176.0/212kRIPE NCCRU12th Jun 2009
111.88.192.0/204.1kRIPE NCCRU12th Jun 2009
111.88.208.0/221kRIPE NCCRU12th Jun 2009
130.49.136.0/221kRIPE NCCRU18th May 1988
130.49.142.0/24256RIPE NCCRU18th May 1988
130.49.152.0/24256RIPE NCCRU18th May 1988
130.49.192.0/204.1kRIPE NCCRU18th May 1988
130.49.208.0/221kRIPE NCCRU18th May 1988
130.49.214.0/24256RIPE NCCRU18th May 1988
131.117.216.0/212kRIPE NCCRU16th Mar 2012
135.106.132.0/23512RIPE NCCRU22nd Jun 1995
135.106.192.0/1816.4kRIPE NCCRU22nd Jun 1995
136.234.0.0/1816.4kRIPE NCCRU3rd Oct 1989
136.234.112.0/212kRIPE NCCRU3rd Oct 1989
136.234.120.0/221kRIPE NCCRU3rd Oct 1989
136.234.64.0/198.2kRIPE NCCRU3rd Oct 1989
136.234.96.0/204.1kRIPE NCCRU3rd Oct 1989
138.16.136.0/24256RIPE NCCRU23rd Jan 1990
138.16.144.0/212kRIPE NCCRU23rd Jan 1990
138.16.208.0/204.1kRIPE NCCRU23rd Jan 1990
138.16.236.0/221kRIPE NCCRU23rd Jan 1990
139.100.160.0/204.1kRIPE NCCRU15th Feb 1990
141.133.128.0/24256RIPE NCCRU27th Oct 1992
141.133.129.0/24256RIPE NCCRU27th Oct 1992
141.133.130.0/24256RIPE NCCRU27th Oct 1992
141.133.131.0/24256RIPE NCCRU27th Oct 1992
141.133.192.0/198.2kRIPE NCCRU27th Oct 1992
141.133.224.0/198.2kRIPE NCCRU27th Oct 1992
146.19.233.0/24256RIPE NCCRU19th Nov 2021
146.19.244.0/24256RIPE NCCRU19th Nov 2021
147.78.188.0/221kRIPE NCCRU22nd Jan 2019
149.255.160.0/212kRIPE NCCRU22nd Aug 2011
153.51.160.0/198.2kRIPE NCCRU23rd Sept 1991
153.51.32.0/198.2kRIPE NCCRU23rd Sept 1991
153.51.64.0/198.2kRIPE NCCRU23rd Sept 1991
153.76.160.0/204.1kRIPE NCCRU23rd Sept 1991
153.80.180.0/221kRIPE NCCRU23rd Sept 1991
153.80.186.0/24256RIPE NCCRU23rd Sept 1991
153.80.248.0/24256RIPE NCCRU23rd Sept 1991
153.80.252.0/24256RIPE NCCRU23rd Sept 1991
153.80.254.0/23512RIPE NCCRU23rd Sept 1991