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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks registered through RIPE NCC

25,318 blocks match, ordered by prefix.

Allocated but unannounced blocks, 11151 to 11200 of 25318
PrefixAddressesRegistryCountryAllocated
217.14.26.0/23512RIPE NCCRU9th Dec 2002
217.14.28.0/221kRIPE NCCRU9th Dec 2002
217.140.16.0/204.1kRIPE NCCGB5th Mar 2001
217.142.32.0/198.2kRIPE NCCSE31st Jan 2001
217.147.4.0/221kRIPE NCCSE1st Oct 2018
217.150.207.0/24256RIPE NCCRU15th Mar 2001
217.150.86.0/23512RIPE NCCLB18th May 2012
217.151.0.0/204.1kRIPE NCCFR15th Mar 2001
217.151.48.0/204.1kRIPE NCCSE29th Jun 2004
217.154.104.0/24256RIPE NCCGB19th Feb 2001
217.154.12.0/24256RIPE NCCGB19th Feb 2001
217.154.128.0/23512RIPE NCCDE19th Feb 2001
217.154.130.0/24256RIPE NCCDE19th Feb 2001
217.154.136.0/24256RIPE NCCDE19th Feb 2001
217.154.139.0/24256RIPE NCCDE19th Feb 2001
217.154.140.0/24256RIPE NCCDE19th Feb 2001
217.154.151.0/24256RIPE NCCGB19th Feb 2001
217.154.158.0/24256RIPE NCCGB19th Feb 2001
217.154.209.0/24256RIPE NCCGB19th Feb 2001
217.154.219.0/24256RIPE NCCGB19th Feb 2001
217.154.221.0/24256RIPE NCCGB19th Feb 2001
217.154.236.0/24256RIPE NCCGB19th Feb 2001
217.154.25.0/24256RIPE NCCGB19th Feb 2001
217.154.29.0/24256RIPE NCCDE19th Feb 2001
217.154.46.0/24256RIPE NCCGB19th Feb 2001
217.16.32.0/204.1kRIPE NCCNL11th Sept 2000
217.16.48.0/204.1kRIPE NCCGB22nd Nov 2002
217.170.160.0/204.1kRIPE NCCPL14th May 2009
217.171.160.0/204.1kRIPE NCCIT2nd Apr 2001
217.172.160.0/23512RIPE NCCDE6th Apr 2001
217.172.162.0/24256RIPE NCCDE6th Apr 2001
217.172.164.0/24256RIPE NCCDE6th Apr 2001
217.172.168.0/23512RIPE NCCDE6th Apr 2001
217.172.191.0/24256RIPE NCCDE27th Jul 2001
217.177.13.0/24256RIPE NCCGB2nd Mar 2001
217.177.96.0/198.2kRIPE NCCGB2nd Mar 2001
217.179.56.0/221kRIPE NCCCH2nd Mar 2001
217.179.72.0/23512RIPE NCCAZ2nd Mar 2001
217.18.51.0/24256RIPE NCCUA6th May 2026
217.18.83.0/24256RIPE NCCNL8th Mar 2023
217.18.84.0/24256RIPE NCCGB8th Mar 2023
217.18.87.0/24256RIPE NCCFR8th Mar 2023
217.18.91.0/24256RIPE NCCGB26th Jan 2026
217.18.93.0/24256RIPE NCCLV9th Mar 2023
217.180.0.0/212kRIPE NCCGB2nd Mar 2001
217.180.18.0/23512RIPE NCCKZ2nd Mar 2001
217.180.36.0/23512RIPE NCCGB2nd Mar 2001
217.180.38.0/24256RIPE NCCIM2nd Mar 2001
217.180.60.0/24256RIPE NCCGB2nd Mar 2001
217.180.61.0/24256RIPE NCCIT2nd Mar 2001