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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

25,273 blocks match, ordered by prefix.

Allocated but unannounced blocks, 3751 to 3800 of 25273
PrefixAddressesRegistryCountryAllocated
192.138.231.0/24256RIPE NCCCH17th Jan 1992
192.138.232.0/24256RIPE NCCCH17th Jan 1992
192.138.248.0/24256RIPE NCCGB22nd Jan 1992
192.138.4.0/221kRIPE NCCGB2nd Jan 1992
192.138.8.0/24256RIPE NCCGB2nd Jan 1992
192.139.78.0/24256RIPE NCCFR23rd Apr 1992
192.144.24.0/221kRIPE NCCRO23rd Nov 2018
192.144.28.0/24256RIPE NCCRU23rd Nov 2018
192.144.44.0/221kRIPE NCCCZ26th Nov 2018
192.144.74.0/24256RIPE NCCFR14th May 1992
192.145.100.0/221kRIPE NCCRO10th Dec 2018
192.145.120.0/221kRIPE NCCPS11th Dec 2018
192.145.52.0/221kRIPE NCCGB10th Dec 2018
192.145.88.0/221kRIPE NCCDE10th Dec 2018
192.146.117.0/24256RIPE NCCDK23rd Jan 1992
192.146.119.0/24256RIPE NCCFR23rd Jan 1992
192.146.123.0/24256RIPE NCCGB24th Jan 1992
192.146.124.0/23512RIPE NCCES24th Jan 1992
192.146.126.0/24256RIPE NCCES24th Jan 1992
192.146.132.0/24256RIPE NCCAT28th Jan 1992
192.146.152.0/24256RIPE NCCFI13th May 1992
192.146.173.0/24256RIPE NCCIT3rd Feb 1992
192.146.174.0/24256RIPE NCCIT3rd Feb 1992
192.146.175.0/24256RIPE NCCIT3rd Feb 1992
192.146.176.0/24256RIPE NCCIT3rd Feb 1992
192.146.177.0/24256RIPE NCCIT3rd Feb 1992
192.146.178.0/24256RIPE NCCIT3rd Feb 1992
192.146.179.0/24256RIPE NCCIT3rd Feb 1992
192.146.180.0/24256RIPE NCCIT3rd Feb 1992
192.146.181.0/24256RIPE NCCIT3rd Feb 1992
192.146.182.0/24256RIPE NCCFR3rd Feb 1992
192.146.185.0/24256RIPE NCCDE3rd Feb 1992
192.146.187.0/24256RIPE NCCES3rd Feb 1992
192.146.193.0/24256RIPE NCCNO4th Feb 1992
192.146.204.0/24256RIPE NCCCZ4th Feb 1992
192.146.227.0/24256RIPE NCCNO7th Feb 1992
192.146.228.0/24256RIPE NCCGB7th Feb 1992
192.146.233.0/24256RIPE NCCFR8th Feb 1992
192.146.234.0/24256RIPE NCCFR8th Feb 1992
192.147.141.0/24256RIPE NCCPL15th Feb 1992
192.147.150.0/24256RIPE NCCGB15th Feb 1992
192.147.212.0/24256RIPE NCCGB17th Feb 1992
192.147.215.0/24256RIPE NCCFI17th Feb 1992
192.147.216.0/24256RIPE NCCFI17th Feb 1992
192.147.217.0/24256RIPE NCCGB17th Feb 1992
192.147.219.0/24256RIPE NCCGB18th Feb 1992
192.147.228.0/24256RIPE NCCGB19th Feb 1992
192.147.23.0/24256RIPE NCCGB10th Feb 1992
192.147.247.0/24256RIPE NCCIT25th Feb 1992
192.147.251.0/24256RIPE NCCDE25th Feb 1992