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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,108 blocks match, ordered by prefix.

Allocated but unannounced blocks, 12551 to 12600 of 85108
PrefixAddressesRegistryCountryAllocated
185.203.12.0/221kRIPE NCCGB11th May 2017
185.203.196.0/221kRIPE NCCCH16th May 2017
185.203.207.0/24256ARINUS11th Apr 2022
185.203.4.0/221kRIPE NCCCY7th Jan 2019
185.203.80.0/221kRIPE NCCAT12th May 2017
185.203.91.0/24256RIPE NCCGB27th Jan 2026
185.204.152.0/24256RIPE NCCHU4th Jun 2025
185.204.153.0/24256RIPE NCCEE4th Jun 2025
185.204.185.0/24256RIPE NCCCA8th Oct 2020
185.204.187.0/24256RIPE NCCTR8th Oct 2020
185.204.236.0/221kRIPE NCCGB23rd May 2017
185.204.28.0/221kRIPE NCCGB17th May 2017
185.204.36.0/221kRIPE NCCNL17th May 2017
185.204.44.0/221kRIPE NCCGB18th May 2017
185.205.100.0/221kRIPE NCCUS24th May 2017
185.205.120.0/221kRIPE NCCCH26th May 2017
185.205.176.0/221kRIPE NCCRO29th May 2017
185.205.216.0/221kRIPE NCCDE29th May 2017
185.205.28.0/221kRIPE NCCGB24th May 2017
185.205.36.0/221kRIPE NCCGB24th May 2017
185.206.128.0/221kRIPE NCCGB1st Jun 2017
185.206.136.0/221kRIPE NCCFR1st Jun 2017
185.206.216.0/221kRIPE NCCGB6th Jun 2017
185.206.253.0/24256RIPE NCCLT10th Jan 2024
185.206.72.0/221kRIPE NCCGB31st May 2017
185.207.168.0/221kRIPE NCCCZ9th Jun 2017
185.207.180.0/221kRIPE NCCGB9th Jun 2017
185.207.184.0/221kRIPE NCCIT9th Jun 2017
185.207.200.0/221kRIPE NCCGB9th Jun 2017
185.207.21.0/24256RIPE NCCNL13th Mar 2023
185.207.216.0/221kRIPE NCCDE9th Jun 2017
185.207.220.0/221kRIPE NCCDE10th Jun 2017
185.207.23.0/24256RIPE NCCGB11th Jan 2024
185.207.252.0/221kRIPE NCCRU12th Jun 2017
185.207.28.0/221kRIPE NCCSA7th Jun 2017
185.207.40.0/221kRIPE NCCES7th Jun 2017
185.207.52.0/221kRIPE NCCIR7th Jun 2017
185.208.108.0/221kRIPE NCCTR14th Jun 2017
185.208.12.0/221kRIPE NCCAT12th Jun 2017
185.208.124.0/221kRIPE NCCNL15th Jun 2017
185.208.168.0/221kRIPE NCCAT15th Jun 2017
185.208.24.0/221kRIPE NCCIT13th Jun 2017
185.208.48.0/221kRIPE NCCBG13th Jun 2017
185.209.0.0/221kRIPE NCCLV19th Jun 2017
185.209.14.0/24256RIPE NCCDE4th Nov 2020
185.209.200.0/221kRIPE NCCSY22nd Jun 2017
185.209.24.0/221kRIPE NCCRU19th Jun 2017
185.209.252.0/221kRIPE NCCDE23rd Jun 2017
185.209.80.0/24256RIPE NCCBG5th Nov 2020
185.209.83.0/24256RIPE NCCGB5th Nov 2020