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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,295 blocks match, ordered by prefix.

Allocated but unannounced blocks, 6901 to 6950 of 26295
PrefixAddressesRegistryCountryAllocated
192.31.92.0/24256ARINUS13th Mar 1991
192.31.97.0/24256ARINUS10th Jun 1987
192.31.99.0/24256ARINUS11th Jul 1988
192.32.0.0/1665.5kARINUS2nd Aug 2011
192.33.11.0/24256ARINUS6th May 2014
192.33.129.0/24256ARINUS16th May 1990
192.33.137.0/24256ARINUS7th Apr 1993
192.33.138.0/24256ARINUS7th Apr 1993
192.33.142.0/24256ARINUS8th Dec 1987
192.33.168.0/24256ARINUS26th Jun 2024
192.33.188.0/24256ARINUS12th Jan 1988
192.33.190.0/24256ARINUS21st Jan 1988
192.33.2.0/24256ARINUS9th Oct 1987
192.33.20.0/24256ARINUS3rd Nov 1987
192.33.21.0/24256ARINUS5th Nov 1987
192.33.241.0/24256ARINUS18th Feb 1988
192.33.253.0/24256ARINUS19th Feb 1988
192.33.35.0/24256ARINUS30th Sept 1987
192.33.37.0/24256ARINUS8th Oct 1987
192.33.38.0/23512ARINUS8th Oct 1987
192.33.40.0/212kARINUS8th Oct 1987
192.33.48.0/204.1kARINUS8th Oct 1987
192.33.5.0/24256ARINUS22nd Oct 1987
192.33.6.0/24256ARINUS22nd Oct 1987
192.33.64.0/204.1kARINUS8th Oct 1987
192.33.7.0/24256ARINUS22nd Oct 1987
192.33.8.0/24256ARINUS22nd Oct 1987
192.33.80.0/221kARINUS8th Oct 1987
192.33.84.0/23512ARINUS8th Oct 1987
192.33.86.0/24256ARINUS8th Oct 1987
192.33.9.0/24256ARINUS22nd Oct 1987
192.34.145.0/24256ARINUS19th Oct 1993
192.34.168.0/24256ARINUS29th May 2014
192.34.169.0/24256ARINUS21st Oct 1988
192.34.170.0/23512ARINUS12th Sept 2014
192.34.176.0/23512ARINUS13th Aug 2014
192.34.180.0/24256ARINUS23rd May 2014
192.34.181.0/24256ARINUS3rd Oct 1994
192.34.182.0/23512ARINUS3rd Oct 1994
192.34.212.0/24256ARINUS11th Jan 1994
192.34.214.0/24256ARINUS28th Jan 2000
192.34.240.0/221kARINUS28th Aug 2012
192.34.244.0/24256ARINUS30th Jan 1997
192.34.245.0/24256ARINUS26th Jun 2024
192.34.247.0/24256ARINUS21st Oct 1988
192.34.25.0/24256ARINUS10th Jun 2000
192.34.32.0/23512ARINUS15th Jul 2014
192.34.35.0/24256ARINUS19th Oct 1988
192.34.71.0/24256ARINUS10th Jun 2000
192.34.72.0/24256ARINUS10th Jun 2000