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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,300 blocks match, ordered by prefix.

Allocated but unannounced blocks, 8151 to 8200 of 26300
PrefixAddressesRegistryCountryAllocated
192.80.23.0/24256ARINUS27th Apr 1990
192.80.25.0/24256ARINUS29th Dec 2014
192.80.252.0/23512ARINUS11th Jun 1990
192.80.254.0/24256ARINUS11th Jun 1990
192.80.30.0/24256ARINUS2nd May 1990
192.80.44.0/24256ARINUS25th Nov 1995
192.80.45.0/24256ARINUS19th Dec 2014
192.80.47.0/24256ARINUS7th May 1990
192.80.49.0/24256ARINUS7th May 1990
192.80.50.0/24256ARINUS8th May 1990
192.80.57.0/24256ARINUS21st May 1990
192.80.58.0/23512ARINUS12th Mar 2025
192.80.62.0/24256ARINUS22nd Feb 1991
192.80.66.0/24256ARINUS5th Apr 1991
192.80.69.0/24256ARINUS16th Apr 1991
192.80.72.0/24256ARINUS3rd May 1991
192.80.76.0/24256ARINUS18th Dec 2014
192.80.77.0/24256ARINUS19th Jun 1991
192.80.78.0/24256ARINUS21st May 1990
192.80.79.0/24256ARINUS21st May 1990
192.80.81.0/24256ARINUS21st May 1990
192.80.82.0/24256ARINUS21st May 1990
192.80.85.0/24256ARINUS21st May 1990
192.80.86.0/24256ARINUS21st May 1990
192.80.87.0/24256ARINUS21st May 1990
192.81.115.0/24256ARINUS5th Jan 2015
192.81.120.0/24256ARINUS14th Jan 2015
192.81.124.0/221kARINUS2nd Jan 2013
192.81.161.0/24256ARINUS2nd Jan 2015
192.81.166.0/24256ARINUS24th Oct 1994
192.81.176.0/221kARINUS3rd Jan 2013
192.81.186.0/23512ARINUS17th Sept 2013
192.81.190.0/24256ARINUS30th May 1990
192.81.192.0/24256ARINUS7th Jul 1992
192.81.48.0/24256ARINUS30th May 1990
192.81.50.0/23512ARINUS10th Dec 2014
192.81.58.0/24256ARINUS7th Jan 2015
192.81.60.0/24256ARINUS5th Jan 2015
192.81.67.0/24256ARINUS6th Jun 1991
192.81.74.0/24256ARINUS12th Apr 1995
192.81.8.0/24256ARINUS10th Jun 1992
192.81.88.0/24256ARINUS11th Jun 1993
192.81.89.0/24256ARINUS11th Apr 2022
192.81.90.0/23512ARINUS12th Dec 2014
192.81.92.0/221kARINUS28th Dec 2012
192.81.97.0/24256ARINUS27th Oct 1993
192.82.101.0/24256ARINUS1st Jun 1990
192.82.103.0/24256ARINUS1st Jun 1990
192.82.105.0/24256ARINUS11th Jun 1990
192.82.108.0/24256ARINUS15th Jun 1990