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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through RIPE NCC, largest first.

Unannounced blocks registered through RIPE NCC

25,283 blocks match, ordered by prefix.

Allocated but unannounced blocks, 5901 to 5950 of 25283
PrefixAddressesRegistryCountryAllocated
193.243.176.0/221kRIPE NCCGB19th Jun 1998
193.243.180.0/23512RIPE NCCGB19th Jun 1998
193.243.182.0/24256RIPE NCCRU19th Nov 2019
193.243.183.0/2664RIPE NCCGE7th Feb 2024
193.243.183.128/2664RIPE NCCGB8th Feb 2024
193.243.183.192/2664RIPE NCCSE3rd Apr 2006
193.243.183.64/2664RIPE NCCSE3rd Feb 2006
193.246.101.0/24256RIPE NCCCH28th May 1997
193.246.108.0/23512RIPE NCCCH28th May 1997
193.246.120.0/24256RIPE NCCCH28th May 1997
193.246.123.0/24256RIPE NCCCH28th May 1997
193.246.126.0/24256RIPE NCCAT28th May 1997
193.246.128.0/204.1kRIPE NCCCH28th May 1997
193.246.145.0/24256RIPE NCCCH28th May 1997
193.246.151.0/24256RIPE NCCCH28th May 1997
193.246.152.0/24256RIPE NCCCH28th May 1997
193.246.153.0/24256RIPE NCCRU19th Nov 2019
193.246.154.0/23512RIPE NCCES17th Oct 2019
193.246.158.0/24256RIPE NCCCH28th May 1997
193.246.163.0/24256RIPE NCCCH28th May 1997
193.246.166.0/24256RIPE NCCCH28th May 1997
193.246.168.0/23512RIPE NCCCH28th May 1997
193.246.172.0/23512RIPE NCCCH28th May 1997
193.246.202.0/23512RIPE NCCCH28th May 1997
193.246.204.0/23512RIPE NCCCH28th May 1997
193.246.206.0/24256RIPE NCCRU19th Nov 2019
193.246.208.0/204.1kRIPE NCCCH28th May 1997
193.246.242.0/23512RIPE NCCCH28th May 1997
193.246.245.0/24256RIPE NCCRU19th Nov 2019
193.246.246.0/24256RIPE NCCCH28th May 1997
193.246.252.0/24256RIPE NCCCH28th May 1997
193.246.254.0/24256RIPE NCCCH28th May 1997
193.246.51.0/24256RIPE NCCRU19th Nov 2019
193.246.52.0/221kRIPE NCCGB28th May 1997
193.246.6.0/23512RIPE NCCCH28th May 1997
193.246.60.0/23512RIPE NCCCH28th May 1997
193.246.62.0/23512RIPE NCCCH28th May 1997
193.247.104.0/23512RIPE NCCCH28th May 1997
193.247.106.0/24256RIPE NCCCH28th May 1997
193.247.145.0/24256RIPE NCCCH28th May 1997
193.247.152.0/212kRIPE NCCCH28th May 1997
193.247.160.0/23512RIPE NCCCH28th May 1997
193.247.163.0/24256RIPE NCCCH28th May 1997
193.247.164.0/24256RIPE NCCCH28th May 1997
193.247.166.0/23512RIPE NCCCH28th May 1997
193.247.186.0/24256RIPE NCCCH28th May 1997
193.247.187.0/24256RIPE NCCCH28th May 1997
193.247.188.0/24256RIPE NCCCH28th May 1997
193.247.201.0/24256RIPE NCCCH28th May 1997
193.247.204.0/24256RIPE NCCCH28th May 1997