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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

27,001 blocks match, ordered by prefix.

Allocated but unannounced blocks, 4351 to 4400 of 27001
PrefixAddressesRegistryCountryAllocated
192.138.206.0/24256ARINUS29th Jun 2023
192.138.207.0/24256ARINUS3rd Feb 1992
192.138.208.0/24256ARINUS26th Feb 1992
192.138.212.0/24256ARINUS3rd Jun 2015
192.138.215.0/24256ARINUS3rd Mar 1996
192.138.216.0/24256ARINUS3rd Apr 1992
192.138.217.0/24256ARINUS4th May 1992
192.138.218.0/23512ARINUS18th Feb 2015
192.138.221.0/24256ARINUS28th May 1992
192.138.222.0/24256ARINUS28th May 1992
192.138.223.0/24256ARINUS28th May 1992
192.138.224.0/24256ARINUS28th May 1992
192.138.227.0/24256ARINUS2nd Jul 2015
192.138.233.0/24256ARINUS17th Jan 1992
192.138.234.0/24256ARINUS17th Jan 1992
192.138.235.0/24256ARINUS17th Jan 1992
192.138.236.0/24256ARINUS17th Jan 1992
192.138.237.0/24256ARINUS12th May 1992
192.138.238.0/24256ARINUS21st Jan 1992
192.138.239.0/24256ARINUS21st Jan 1992
192.138.240.0/212kARINUS21st Jan 1992
192.138.250.0/24256ARINUS22nd Jan 1992
192.138.252.0/24256ARINUS22nd Jan 1992
192.138.253.0/24256ARINUS22nd Jan 1992
192.138.254.0/24256ARINUS22nd Jan 1992
192.138.255.0/24256ARINUS4th May 2015
192.138.32.0/198.2kARINUS1st Apr 1996
192.138.84.0/24256ARINUS3rd Jan 1992
192.138.88.0/24256ARINUS3rd Jan 1992
192.138.9.0/24256ARINUS6th May 2015
192.138.90.0/23512ARINUS23rd Jan 1996
192.138.92.0/221kARINUS23rd Jan 1996
192.138.96.0/23512ARINUS23rd Jan 1996
192.138.98.0/24256ARINUS23rd Jan 1996
192.138.99.0/24256ARINUS30th Apr 2015
192.139.0.0/24256ARINUS4th May 2015
192.139.131.0/24256ARINUS22nd May 2015
192.139.147.0/24256ARINUS6th May 2015
192.139.155.0/24256ARINUS10th Aug 1992
192.139.189.0/24256ARINUS6th May 2015
192.139.217.0/24256ARINUS26th Aug 1992
192.140.0.0/24256ARINUS25th Jun 2020
192.146.100.0/24256ARINUS14th May 1992
192.146.102.0/24256ARINUS22nd Jan 1992
192.146.103.0/24256ARINUS22nd Jan 1992
192.146.104.0/24256ARINUS24th Jan 1992
192.146.105.0/24256ARINUS22nd Jan 1992
192.146.106.0/24256ARINUS22nd Jan 1992
192.146.107.0/24256ARINUS22nd Jan 1992
192.146.108.0/24256ARINUS22nd Jan 1992