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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks registered through RIPE NCC

25,269 blocks match, ordered by prefix.

Allocated but unannounced blocks, 22401 to 22450 of 25269
PrefixAddressesRegistryCountryAllocated
46.174.128.0/23512RIPE NCCNL29th Dec 2010
46.174.130.0/23512RIPE NCCLU29th Dec 2010
46.174.133.0/24256RIPE NCCNL29th Dec 2010
46.174.134.0/24256RIPE NCCDE29th Dec 2010
46.174.135.0/24256RIPE NCCNL29th Dec 2010
46.174.216.0/212kRIPE NCCGE21st Jan 2011
46.174.232.0/221kRIPE NCCPL25th Jan 2011
46.174.236.0/23512RIPE NCCPL25th Jan 2011
46.174.238.0/24256RIPE NCCPL25th Jan 2011
46.175.132.0/24256RIPE NCCHK5th Aug 2021
46.175.152.0/221kRIPE NCCRO15th Jun 2018
46.18.184.0/212kRIPE NCCDE2nd Nov 2010
46.182.152.0/212kRIPE NCCIT25th Nov 2010
46.182.240.0/212kRIPE NCCDE30th Nov 2010
46.183.152.0/212kRIPE NCCDE9th Dec 2010
46.183.19.0/24256RIPE NCCNL21st Jan 2026
46.183.23.0/24256RIPE NCCIQ22nd Jan 2026
46.183.240.0/212kRIPE NCCNL14th Dec 2010
46.183.80.0/212kRIPE NCCRU6th Dec 2010
46.183.88.0/212kRIPE NCCUS7th Dec 2010
46.19.240.0/212kRIPE NCCGB18th Nov 2010
46.19.7.0/24256RIPE NCCBE4th Nov 2010
46.191.0.0/1732.8kRIPE NCCBY14th Dec 2010
46.21.20.0/24256RIPE NCCCH25th Oct 2010
46.22.64.0/204.1kRIPE NCCUS23rd Nov 2010
46.226.152.0/212kRIPE NCCSE24th Jan 2011
46.226.248.0/212kRIPE NCCGB26th Jan 2011
46.226.48.0/212kRIPE NCCGB20th Jan 2011
46.227.72.0/212kRIPE NCCSE28th Jan 2011
46.227.8.0/212kRIPE NCCCZ26th Jan 2011
46.228.144.0/204.1kRIPE NCCUS7th Feb 2011
46.228.224.0/204.1kRIPE NCCPL9th Feb 2011
46.228.64.0/204.1kRIPE NCCRU4th Feb 2011
46.23.16.0/204.1kRIPE NCCDE1st Dec 2010
46.230.160.0/212kRIPE NCCNO8th Feb 2011
46.230.176.0/204.1kRIPE NCCSE8th Feb 2011
46.230.192.0/1816.4kRIPE NCCSE8th Feb 2011
46.231.104.0/212kRIPE NCCNL7th Feb 2011
46.231.128.0/212kRIPE NCCFR7th Feb 2011
46.231.136.0/212kRIPE NCCDE7th Feb 2011
46.235.5.0/24256RIPE NCCGB8th Feb 2011
46.237.128.0/1816.4kRIPE NCCGB26th Jan 2011
46.243.212.0/24256RIPE NCCRU28th Dec 2010
46.243.218.0/23512RIPE NCCRU28th Dec 2010
46.243.255.0/24256RIPE NCCNL28th Dec 2010
46.243.56.0/221kRIPE NCCFR15th Jun 2018
46.245.235.0/24256RIPE NCCIT19th Aug 2024
46.245.236.0/24256RIPE NCCHR19th Aug 2024
46.247.44.0/221kRIPE NCCGB1st Feb 2011
46.247.48.0/212kRIPE NCCGB1st Feb 2011