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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks in United States

26,283 blocks match, ordered by prefix.

Allocated but unannounced blocks, 3551 to 3600 of 26283
PrefixAddressesRegistryCountryAllocated
192.112.88.0/24256ARINUS7th Aug 1991
192.112.89.0/24256ARINUS7th Aug 1991
192.112.90.0/24256ARINUS7th Aug 1991
192.112.91.0/24256ARINUS7th Aug 1991
192.112.92.0/24256ARINUS7th Aug 1991
192.112.93.0/24256ARINUS7th Aug 1991
192.112.94.0/24256ARINUS7th Aug 1991
192.112.95.0/24256ARINUS7th Aug 1991
192.112.96.0/24256ARINUS7th Aug 1991
192.119.0.0/24256ARINUS24th Oct 2018
192.119.1.0/24256ARINUS30th Jul 1991
192.119.135.0/24256ARINUS3rd Jan 1995
192.12.101.0/24256ARINUS28th Aug 1985
192.12.102.0/24256ARINUS4th Sept 1985
192.12.119.0/24256ARINUS7th Jul 2022
192.12.120.0/24256ARINUS4th Sept 1985
192.12.121.0/24256ARINUS18th Sept 1985
192.12.122.0/24256ARINUS18th Sept 1985
192.12.123.0/24256ARINUS20th Sept 1985
192.12.127.0/24256ARINUS3rd Oct 1985
192.12.130.0/24256ARINUS30th Apr 1990
192.12.132.0/24256ARINUS15th Oct 1985
192.12.138.0/24256ARINUS15th Oct 1985
192.12.140.0/24256ARINUS15th Oct 1985
192.12.141.0/24256ARINUS23rd Oct 1985
192.12.142.0/24256ARINUS30th Oct 1985
192.12.143.0/24256ARINUS30th Oct 1985
192.12.145.0/24256ARINUS5th Nov 1985
192.12.150.0/23512ARINUS5th Nov 1985
192.12.152.0/23512ARINUS5th Nov 1985
192.12.154.0/24256ARINUS2nd Oct 2017
192.12.188.0/24256ARINUS13th Jan 1986
192.12.195.0/24256ARINUS13th Jan 1986
192.12.196.0/24256ARINUS16th May 1988
192.12.20.0/23512ARINUS21st May 2014
192.12.210.0/24256ARINUS18th Dec 1987
192.12.211.0/24256ARINUS19th Feb 1986
192.12.212.0/24256ARINUS20th Feb 1986
192.12.213.0/24256ARINUS20th Feb 1986
192.12.214.0/24256ARINUS2nd May 1990
192.12.216.0/24256ARINUS27th Feb 1986
192.12.225.0/24256ARINUS30th Apr 1990
192.12.226.0/23512ARINUS30th Apr 1990
192.12.228.0/24256ARINUS30th Apr 1990
192.12.229.0/24256ARINUS2nd May 1990
192.12.23.0/24256ARINUS7th Mar 2014
192.12.230.0/24256ARINUS4th May 1990
192.12.233.0/24256ARINUS14th May 1990
192.12.237.0/24256ARINUS5th Mar 1986
192.12.239.0/24256ARINUS11th Mar 1986