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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

27,019 blocks match, ordered by prefix.

Allocated but unannounced blocks, 8201 to 8250 of 27019
PrefixAddressesRegistryCountryAllocated
192.76.240.0/24256ARINUS30th Jun 1990
192.76.250.0/24256ARINUS9th Oct 1990
192.76.251.0/24256ARINUS30th Jun 1990
192.76.36.0/221kARINUS28th Aug 1990
192.76.40.0/212kARINUS28th Aug 1990
192.76.96.0/204.1kARINUS28th Aug 1990
192.77.1.0/24256ARINUS30th Jun 1990
192.77.109.0/24256ARINUS14th Aug 1991
192.77.112.0/24256ARINUS15th Aug 1991
192.77.118.0/24256ARINUS21st Aug 1991
192.77.119.0/24256ARINUS22nd Aug 1991
192.77.124.0/24256ARINUS22nd Aug 1991
192.77.127.0/24256ARINUS22nd Aug 1991
192.77.128.0/24256ARINUS31st Dec 2014
192.77.129.0/24256ARINUS22nd Aug 1991
192.77.13.0/24256ARINUS17th Oct 1990
192.77.130.0/24256ARINUS23rd Aug 1991
192.77.131.0/24256ARINUS23rd Aug 1991
192.77.139.0/24256ARINUS23rd Aug 1991
192.77.142.0/24256ARINUS27th Aug 1991
192.77.148.0/24256ARINUS9th Sept 1991
192.77.149.0/24256ARINUS9th Sept 1991
192.77.15.0/24256ARINUS17th Oct 1990
192.77.150.0/24256ARINUS9th Sept 1991
192.77.151.0/24256ARINUS23rd Sept 1991
192.77.152.0/212kARINUS23rd Sept 1991
192.77.16.0/24256ARINUS17th Oct 1990
192.77.160.0/212kARINUS23rd Sept 1991
192.77.168.0/23512ARINUS23rd Sept 1991
192.77.170.0/24256ARINUS23rd Sept 1991
192.77.172.0/24256ARINUS28th Jan 1992
192.77.174.0/24256ARINUS28th Jan 1992
192.77.175.0/24256ARINUS28th Jan 1992
192.77.18.0/24256ARINUS17th Oct 1990
192.77.186.0/24256ARINUS28th Jan 1992
192.77.19.0/24256ARINUS17th Oct 1990
192.77.2.0/23512ARINUS30th Jun 1990
192.77.23.0/24256ARINUS9th Nov 1990
192.77.232.0/24256ARINUS28th Jan 1992
192.77.233.0/24256ARINUS28th Jan 1992
192.77.234.0/24256ARINUS28th Jan 1992
192.77.24.0/24256ARINUS17th Oct 1990
192.77.25.0/24256ARINUS17th Oct 1990
192.77.4.0/23512ARINUS30th Jun 1990
192.77.6.0/24256ARINUS30th Jun 1990
192.77.76.0/24256ARINUS29th May 1990
192.77.78.0/23512ARINUS7th Nov 1990
192.77.96.0/24256ARINUS7th Nov 1990
192.77.97.0/24256ARINUS8th Nov 1990
192.78.0.0/24256ARINUS16th Dec 2014