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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

27,014 blocks match, ordered by prefix.

Allocated but unannounced blocks, 7601 to 7650 of 27014
PrefixAddressesRegistryCountryAllocated
192.53.3.0/24256ARINUS27th Mar 1989
192.53.32.0/23512ARINUS27th Mar 1989
192.53.34.0/24256ARINUS27th Mar 1989
192.53.35.0/24256ARINUS4th Jun 1992
192.53.36.0/23512ARINUS27th Mar 1989
192.53.38.0/24256ARINUS27th Mar 1989
192.53.39.0/24256ARINUS27th Mar 1989
192.53.4.0/221kARINUS27th Mar 1989
192.53.48.0/204.1kARINUS27th Mar 1989
192.53.72.0/212kARINUS27th Mar 1989
192.53.8.0/212kARINUS27th Mar 1989
192.53.96.0/24256ARINUS27th Mar 1989
192.53.98.0/23512ARINUS27th Mar 1989
192.54.0.0/204.1kARINUS18th May 1989
192.54.107.0/24256ARINUS1st Jun 1989
192.54.108.0/24256ARINUS1st Jun 1989
192.54.109.0/24256ARINUS1st Jun 1989
192.54.110.0/24256ARINUS1st Jun 1989
192.54.111.0/24256ARINUS2nd Jun 1989
192.54.114.0/24256ARINUS5th Jun 1989
192.54.131.0/24256ARINUS8th Jun 1989
192.54.134.0/24256ARINUS8th Jun 1989
192.54.138.0/24256ARINUS12th Jun 1989
192.54.16.0/212kARINUS18th May 1989
192.54.226.0/24256ARINUS15th Jun 1989
192.54.228.0/24256ARINUS19th Jun 1989
192.54.230.0/23512ARINUS20th Jun 1989
192.54.232.0/221kARINUS20th Jun 1989
192.54.236.0/23512ARINUS20th Jun 1989
192.54.238.0/24256ARINUS20th Jun 1989
192.54.239.0/24256ARINUS20th Jun 1989
192.54.24.0/221kARINUS18th May 1989
192.54.241.0/24256ARINUS26th Jun 1990
192.54.246.0/24256ARINUS26th Jun 1989
192.54.248.0/24256ARINUS27th Jun 1989
192.54.249.0/24256ARINUS28th Jun 1989
192.54.250.0/24256ARINUS26th Jun 1990
192.54.253.0/24256ARINUS26th Jun 1990
192.54.28.0/23512ARINUS18th May 1989
192.54.30.0/24256ARINUS18th May 1989
192.54.81.0/24256ARINUS2nd Apr 2026
192.54.82.0/24256ARINUS31st May 1989
192.54.83.0/24256ARINUS31st May 1989
192.54.84.0/24256ARINUS31st May 1989
192.54.85.0/24256ARINUS31st May 1989
192.54.86.0/24256ARINUS31st May 1989
192.54.87.0/24256ARINUS31st May 1989
192.54.88.0/24256ARINUS31st May 1989
192.55.0.0/24256ARINUS29th Aug 2014
192.55.1.0/24256ARINUS23rd Jun 1989