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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through ARIN, largest first.

Unannounced blocks in United States

26,300 blocks match, ordered by prefix.

Allocated but unannounced blocks, 8701 to 8750 of 26300
PrefixAddressesRegistryCountryAllocated
192.94.81.0/24256ARINUS22nd Feb 1991
192.94.82.0/23512ARINUS22nd Feb 1991
192.94.84.0/221kARINUS22nd Feb 1991
192.94.88.0/221kARINUS22nd Feb 1991
192.94.9.0/24256ARINUS7th Feb 1991
192.94.94.0/24256ARINUS22nd Feb 1991
192.94.95.0/24256ARINUS22nd Feb 1991
192.94.96.0/221kARINUS22nd Feb 1991
192.96.135.0/24256ARINUS6th Oct 2025
192.96.160.0/221kARINUS11th Jan 2013
192.96.23.0/24256ARINUS12th Feb 2015
192.96.36.0/24256ARINUS17th Feb 2015
192.96.59.0/24256ARINUS18th Feb 2015
192.97.0.0/1665.5kARINUS5th Mar 1991
193.187.1.0/24256ARINUS18th Jan 2022
193.30.88.0/24256ARINUS19th Apr 2022
194.164.105.0/24256ARINUS29th Jan 2024
194.164.128.0/212kARINUS16th May 2024
194.164.184.0/212kARINUS16th May 2024
194.164.208.0/212kARINUS16th May 2024
194.164.40.0/212kARINUS16th May 2024
194.179.146.0/23512ARINUS9th Dec 2024
194.26.194.0/24256ARINUS13th Feb 2024
194.33.149.0/24256ARINUS18th Jan 2022
195.180.176.0/204.1kARINUS3rd Jun 2024
195.2.252.0/23512ARINUS24th Feb 2022
195.206.144.0/204.1kARINUS3rd Jun 2024
195.85.36.0/24256ARINUS7th Jul 2023
196.1.140.0/24256ARINUS13th Dec 1994
196.1.142.0/24256ARINUS31st Mar 1995
196.216.1.0/24256ARINUS8th Feb 1993
196.4.46.0/23512ARINUS28th Jan 1994
196.4.64.0/221kARINUS28th Jan 1994
198.1.16.0/212kARINUS4th Jan 1993
198.1.24.0/23512ARINUS4th Jan 1993
198.1.8.0/212kARINUS20th Nov 1992
198.100.24.0/212kARINUS19th Apr 2013
198.100.32.0/212kARINUS23rd Mar 1993
198.100.40.0/23512ARINUS23rd Mar 1993
198.100.64.0/204.1kARINUS26th Mar 1993
198.100.8.0/212kARINUS19th Mar 1993
198.100.80.0/212kARINUS26th Mar 1993
198.100.88.0/221kARINUS26th Mar 1993
198.100.92.0/23512ARINUS26th Mar 1993
198.101.4.0/23512ARINUS24th Mar 1993
198.101.6.0/24256ARINUS24th Mar 1993
198.102.0.0/24256ARINUS18th Mar 1993
198.102.100.0/24256ARINUS29th Mar 1993
198.102.101.0/24256ARINUS29th Mar 1993
198.102.102.0/24256ARINUS29th Mar 1993