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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with unannounced space registered through RIPE NCC, largest first.

Unannounced blocks registered through RIPE NCC

24,902 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1051 to 1100 of 24902
PrefixAddressesRegistryCountryAllocated
176.100.251.0/24256RIPE NCCRU30th Jan 2012
176.100.41.0/24256RIPE NCCBE1st Sept 2021
176.100.43.0/24256RIPE NCCDE1st Sept 2021
176.100.44.0/24256RIPE NCCSC1st Sept 2021
176.101.168.0/24256RIPE NCCDE24th Jun 2020
176.101.170.0/24256RIPE NCCNO25th Jun 2020
176.101.171.0/24256RIPE NCCIT25th Jun 2020
176.101.80.0/221kRIPE NCCPL9th Nov 2011
176.102.188.0/24256RIPE NCCPL29th Nov 2011
176.102.190.0/23512RIPE NCCPL29th Nov 2011
176.103.112.0/24256RIPE NCCUA14th Dec 2011
176.103.118.0/24256RIPE NCCUA14th Dec 2011
176.103.212.0/221kRIPE NCCUA20th Dec 2011
176.103.248.0/212kRIPE NCCIT23rd Dec 2011
176.104.168.0/212kRIPE NCCRU29th Dec 2011
176.104.244.0/221kRIPE NCCUA3rd Jan 2012
176.105.244.0/24256RIPE NCCRO15th Aug 2022
176.105.245.0/24256RIPE NCCIR15th Aug 2022
176.106.136.0/212kRIPE NCCCZ19th Apr 2012
176.106.40.0/212kRIPE NCCPS11th Jan 2012
176.107.124.0/221kRIPE NCCCZ31st Jan 2012
176.109.56.0/212kRIPE NCCSK23rd Feb 2012
176.110.100.0/24256RIPE NCCSA25th Jul 2012
176.110.109.0/24256RIPE NCCDE21st Apr 2021
176.111.47.0/24256RIPE NCCUA5th Mar 2012
176.113.160.0/221kRIPE NCCUA4th Apr 2012
176.113.45.0/24256RIPE NCCGB3rd Jul 2020
176.113.46.0/24256RIPE NCCGR6th Jul 2020
176.113.76.0/221kRIPE NCCDE15th Oct 2018
176.115.112.0/221kRIPE NCCRU24th Apr 2012
176.115.116.0/221kRIPE NCCRU24th Apr 2012
176.115.224.0/212kRIPE NCCDE4th May 2012
176.117.0.0/212kRIPE NCCRU11th May 2012
176.117.109.0/24256RIPE NCCCY23rd Jul 2025
176.117.111.0/24256RIPE NCCUS24th Jul 2025
176.117.32.0/204.1kRIPE NCCRU11th May 2012
176.117.56.0/24256RIPE NCCBE15th May 2012
176.118.176.0/24256RIPE NCCES29th Sept 2025
176.118.178.0/24256RIPE NCCJP30th Sept 2025
176.118.194.0/24256RIPE NCCNL7th Jul 2020
176.119.194.0/24256RIPE NCCHU6th Jan 2020
176.119.203.0/24256RIPE NCCLU6th Jan 2020
176.119.204.0/24256RIPE NCCSE6th Jan 2020
176.119.211.0/24256RIPE NCCNL6th Jan 2020
176.119.218.0/24256RIPE NCCRU6th Jan 2020
176.119.219.0/24256RIPE NCCLU6th Jan 2020
176.119.221.0/24256RIPE NCCPL7th Jan 2020
176.120.20.0/24256RIPE NCCCA20th Aug 2024
176.120.23.0/24256RIPE NCCDE27th Aug 2024
176.120.64.0/221kRIPE NCCMD20th Jun 2012