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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,951 blocks match, ordered by prefix.

Allocated but unannounced blocks, 18801 to 18850 of 26951
PrefixAddressesRegistryCountryAllocated
206.223.55.0/24256ARINUS7th Nov 1995
206.223.56.0/24256ARINUS9th Nov 1995
206.223.57.0/24256ARINUS10th Nov 1995
206.223.58.0/24256ARINUS10th Nov 1995
206.223.59.0/24256ARINUS10th Nov 1995
206.223.60.0/24256ARINUS25th Jul 2022
206.223.61.0/24256ARINUS13th Nov 1995
206.223.62.0/24256ARINUS13th Nov 1995
206.223.63.0/24256ARINUS17th Nov 1995
206.223.65.0/24256ARINUS17th Nov 1995
206.223.66.0/24256ARINUS17th Nov 1995
206.223.68.0/24256ARINUS21st Nov 1995
206.223.69.0/24256ARINUS22nd Nov 1995
206.223.7.0/24256ARINUS6th Oct 1995
206.223.70.0/24256ARINUS27th Nov 1995
206.223.71.0/24256ARINUS27th Nov 1995
206.223.72.0/24256ARINUS27th Nov 1995
206.223.74.0/24256ARINUS28th Nov 1995
206.223.75.0/24256ARINUS1st Dec 1995
206.223.76.0/24256ARINUS4th Dec 1995
206.223.77.0/24256ARINUS4th Dec 1995
206.223.79.0/24256ARINUS6th Dec 1995
206.223.80.0/24256ARINUS8th Dec 1995
206.223.81.0/24256ARINUS11th Dec 1995
206.223.82.0/24256ARINUS11th Dec 1995
206.223.83.0/24256ARINUS20th Dec 1995
206.223.85.0/24256ARINUS16th Jan 1996
206.223.86.0/24256ARINUS24th Jan 1996
206.223.87.0/24256ARINUS28th Mar 1996
206.223.9.0/24256ARINUS9th Oct 1995
206.223.92.0/24256ARINUS9th Apr 1996
206.223.93.0/24256ARINUS18th Apr 1996
206.223.96.0/24256ARINUS10th May 1996
206.223.99.0/24256ARINUS9th Jul 1996
206.224.128.0/198.2kARINUS23rd Oct 1995
206.224.160.0/198.2kARINUS25th Oct 1995
206.225.12.0/24256ARINUS24th Jan 2023
206.225.133.0/24256ARINUS15th Jul 2015
206.225.14.0/24256ARINUS13th May 2022
206.225.15.0/24256ARINUS24th Jan 2023
206.225.16.0/24256ARINUS4th Oct 2022
206.225.160.0/221kARINUS27th Nov 1995
206.225.5.0/24256ARINUS24th Jan 2023
206.225.6.0/23512ARINUS24th Jan 2023
206.225.64.0/221kARINUS7th Nov 1995
206.225.9.0/24256ARINUS20th Sept 2022
206.226.0.0/1816.4kARINUS6th Oct 1995
206.245.0.0/1816.4kARINUS27th Nov 1995
206.245.64.0/1816.4kARINUS20th Dec 1995
206.246.32.0/198.2kARINUS10th Apr 1996