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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks in United States

26,989 blocks match, ordered by prefix.

Allocated but unannounced blocks, 26401 to 26450 of 26989
PrefixAddressesRegistryCountryAllocated
66.81.132.0/24256ARINUS13th Feb 2012
66.81.14.0/24256ARINUS13th Feb 2012
66.81.15.0/24256ARINUS13th Feb 2012
66.81.159.0/24256ARINUS13th Feb 2012
66.81.32.0/221kARINUS13th Feb 2012
66.81.40.0/212kARINUS13th Feb 2012
66.81.50.0/23512ARINUS13th Feb 2012
66.81.52.0/221kARINUS13th Feb 2012
66.81.7.0/24256ARINUS13th Feb 2012
66.81.84.0/221kARINUS13th Feb 2012
66.81.95.0/24256ARINUS13th Feb 2012
66.84.80.0/24256ARINUS29th Jun 2026
66.85.0.0/24256ARINUS1st Jul 2026
66.85.192.0/198.2kARINUS3rd Nov 2011
66.85.20.0/24256ARINUS1st Jul 2026
66.85.3.0/24256ARINUS24th Aug 2015
66.85.32.0/23512ARINUS1st Jul 2026
66.85.36.0/221kARINUS6th Jul 2026
66.85.58.0/24256ARINUS2nd Jul 2026
66.85.61.0/24256ARINUS1st Jul 2026
66.85.64.0/23512ARINUS14th Mar 2019
66.85.66.0/24256ARINUS6th Jul 2026
66.85.7.0/24256ARINUS29th Sept 2020
66.86.0.0/1665.5kARINUS23rd Mar 2001
66.87.0.0/1665.5kARINUS27th Mar 2001
66.9.40.0/221kARINUS22nd Jan 2024
66.94.224.0/198.2kARINUS17th Jul 2003
66.97.0.0/204.1kARINUS5th Apr 2001
66.97.125.0/24256ARINUS30th Mar 2020
66.97.167.0/24256ARINUS30th Jul 2019
66.97.178.0/24256ARINUS17th Oct 2017
67.150.0.0/1665.5kARINUS3rd May 2018
67.158.53.0/24256ARINUS30th Jan 2018
67.158.58.0/24256ARINUS23rd Mar 2018
67.158.96.0/198.2kARINUS10th Feb 2026
67.199.240.0/23512ARINUS3rd May 2016
67.199.242.0/24256ARINUS3rd May 2016
67.199.246.0/24256ARINUS30th Aug 2016
67.202.233.0/24256ARINUS7th Sept 2007
67.203.101.0/24256ARINUS13th Feb 2012
67.203.102.0/24256ARINUS13th Feb 2012
67.203.109.0/24256ARINUS13th Feb 2012
67.203.121.0/24256ARINUS13th Feb 2012
67.203.123.0/24256ARINUS13th Feb 2012
67.203.126.0/24256ARINUS13th Feb 2012
67.203.127.0/24256ARINUS13th Feb 2012
67.203.64.0/24256ARINUS17th Sept 2007
67.203.92.0/24256ARINUS13th Feb 2012
67.203.97.0/24256ARINUS13th Feb 2012
67.206.188.0/221kARINUS23rd Sept 2021