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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 6551 to 6600 of 27014
PrefixAddressesRegistryCountryAllocated
192.234.76.0/24256ARINUS6th Oct 1992
192.234.77.0/24256ARINUS6th Oct 1992
192.234.78.0/24256ARINUS6th Oct 1992
192.234.8.0/24256ARINUS28th Sept 1992
192.234.9.0/24256ARINUS28th Sept 1992
192.234.92.0/24256ARINUS13th Oct 1992
192.234.94.0/24256ARINUS13th Oct 1992
192.234.95.0/24256ARINUS13th Oct 1992
192.234.96.0/24256ARINUS13th Oct 1992
192.234.97.0/24256ARINUS13th Oct 1992
192.236.1.0/24256ARINUS6th Oct 1992
192.236.8.0/24256ARINUS6th Oct 1992
192.238.16.0/24256ARINUS22nd May 2025
192.239.0.0/1665.5kARINUS15th Oct 1992
192.241.24.0/212kARINUS28th Oct 1992
192.242.0.0/1665.5kARINUS23rd Oct 2018
192.243.0.0/204.1kARINUS20th Oct 1992
192.243.192.0/204.1kARINUS10th Nov 1992
192.243.208.0/221kARINUS10th Nov 1992
192.243.212.0/24256ARINUS10th Nov 1992
192.243.38.0/24256ARINUS27th Oct 1992
192.245.100.0/24256ARINUS2nd Nov 1992
192.245.101.0/24256ARINUS2nd Nov 1992
192.245.103.0/24256ARINUS2nd Nov 1992
192.245.104.0/24256ARINUS2nd Nov 1992
192.245.116.0/24256ARINUS4th Nov 1992
192.245.117.0/24256ARINUS4th Nov 1992
192.245.119.0/24256ARINUS4th Nov 1992
192.245.120.0/24256ARINUS4th Nov 1992
192.245.122.0/23512ARINUS4th Nov 1992
192.245.124.0/23512ARINUS4th Nov 1992
192.245.126.0/23512ARINUS4th Nov 1992
192.245.128.0/221kARINUS4th Nov 1992
192.245.132.0/24256ARINUS4th Nov 1992
192.245.133.0/24256ARINUS5th Nov 1992
192.245.134.0/24256ARINUS5th Nov 1992
192.245.137.0/24256ARINUS5th Nov 1992
192.245.138.0/24256ARINUS5th Nov 1992
192.245.139.0/24256ARINUS5th Nov 1992
192.245.141.0/24256ARINUS6th Nov 1992
192.245.142.0/24256ARINUS6th Nov 1992
192.245.144.0/24256ARINUS6th Nov 1992
192.245.145.0/24256ARINUS6th Nov 1992
192.245.146.0/23512ARINUS6th Nov 1992
192.245.149.0/24256ARINUS9th Nov 1992
192.245.150.0/24256ARINUS9th Nov 1992
192.245.151.0/24256ARINUS9th Nov 1992
192.245.153.0/24256ARINUS9th Nov 1992
192.245.154.0/24256ARINUS9th Nov 1992
192.245.156.0/24256ARINUS9th Nov 1992