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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

27,034 blocks match, ordered by prefix.

Allocated but unannounced blocks, 12851 to 12900 of 27034
PrefixAddressesRegistryCountryAllocated
199.10.154.0/24256ARINUS9th Feb 1994
199.10.155.0/24256ARINUS10th Feb 1994
199.10.156.0/24256ARINUS9th Feb 1994
199.10.162.0/24256ARINUS21st Feb 1994
199.10.180.0/24256ARINUS28th Aug 2015
199.10.187.0/24256ARINUS20th Nov 1997
199.10.188.0/24256ARINUS20th Nov 1997
199.10.189.0/24256ARINUS3rd Nov 1997
199.10.190.0/24256ARINUS20th Nov 1997
199.10.191.0/24256ARINUS20th Nov 1997
199.10.194.0/24256ARINUS24th Feb 1992
199.10.231.0/24256ARINUS14th Jun 1994
199.10.235.0/24256ARINUS6th Apr 1994
199.10.239.0/24256ARINUS11th Apr 1994
199.10.245.0/24256ARINUS19th Apr 1994
199.10.246.0/24256ARINUS19th Apr 1994
199.10.247.0/24256ARINUS19th Apr 1994
199.10.64.0/24256ARINUS18th Aug 2015
199.10.65.0/24256ARINUS10th Nov 1993
199.10.70.0/24256ARINUS5th Oct 1993
199.10.72.0/24256ARINUS12th Oct 1993
199.10.83.0/24256ARINUS31st Aug 2021
199.101.16.0/212kARINUS5th Jan 1994
199.101.160.0/221kARINUS25th Feb 2011
199.101.182.0/23512ARINUS12th Feb 2020
199.101.24.0/23512ARINUS5th Jan 1994
199.101.248.0/212kARINUS7th Mar 2011
199.102.120.0/212kARINUS9th Apr 2025
199.102.16.0/204.1kARINUS6th Jan 1994
199.102.244.0/221kARINUS18th Apr 2017
199.102.32.0/212kARINUS2nd Feb 1994
199.102.40.0/221kARINUS2nd Feb 1994
199.102.52.0/221kARINUS15th Feb 2012
199.102.72.0/221kARINUS11th May 2017
199.103.109.0/24256ARINUS26th Jun 1994
199.103.110.0/24256ARINUS26th Jun 1994
199.103.111.0/24256ARINUS26th Jun 1994
199.103.112.0/24256ARINUS26th Jun 1994
199.103.113.0/24256ARINUS26th Jun 1994
199.103.114.0/23512ARINUS26th Jun 1994
199.103.116.0/23512ARINUS26th Jun 1994
199.103.120.0/23512ARINUS26th Jun 1994
199.103.13.0/24256ARINUS11th Jan 1994
199.103.14.0/23512ARINUS11th Jan 1994
199.103.22.0/23512ARINUS23rd Aug 2019
199.103.69.0/24256ARINUS25th Jun 1994
199.103.70.0/23512ARINUS25th Jun 1994
199.103.72.0/24256ARINUS25th Jun 1994
199.103.78.0/23512ARINUS25th Jun 1994
199.103.80.0/24256ARINUS25th Jun 1994