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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

24,939 blocks match, ordered by prefix.

Allocated but unannounced blocks, 251 to 300 of 24939
PrefixAddressesRegistryCountryAllocated
136.148.96.0/212kRIPE NCCGB14th Apr 2004
136.230.0.0/1665.5kRIPE NCCDE14th Apr 2004
136.234.112.0/212kRIPE NCCRU3rd Oct 1989
136.234.120.0/221kRIPE NCCRU3rd Oct 1989
136.234.96.0/204.1kRIPE NCCRU3rd Oct 1989
136.242.128.0/1732.8kRIPE NCCUS5th Oct 1989
137.105.0.0/1665.5kRIPE NCCGB16th Nov 1989
137.156.0.0/1665.5kRIPE NCCCH12th Dec 1989
137.191.0.0/1732.8kRIPE NCCIE1st Sept 1993
137.191.128.0/1816.4kRIPE NCCIE1st Sept 1993
137.191.192.0/204.1kRIPE NCCIE1st Sept 1993
137.191.208.0/212kRIPE NCCIE1st Sept 1993
137.191.216.0/221kRIPE NCCIE1st Sept 1993
137.191.220.0/23512RIPE NCCIE1st Sept 1993
137.191.222.0/24256RIPE NCCIE1st Sept 1993
137.213.0.0/1665.5kRIPE NCCGB9th Jan 1990
137.218.0.0/1665.5kRIPE NCCGB10th Jan 1990
137.22.152.0/221kRIPE NCCRU11th Oct 1989
137.22.156.0/24256RIPE NCCRU11th Oct 1989
137.22.158.0/24256RIPE NCCRU11th Oct 1989
137.223.0.0/1665.5kRIPE NCCDE10th Jan 1990
137.33.0.0/1665.5kRIPE NCCFI17th Oct 1989
137.34.0.0/1665.5kRIPE NCCCH1st Sept 1993
137.44.128.0/1732.8kRIPE NCCGB25th Oct 1989
137.44.96.0/204.1kRIPE NCCGB25th Oct 1989
137.55.0.0/1665.5kRIPE NCCNL2nd Nov 1989
137.60.0.0/1665.5kRIPE NCCSE5th Jul 1990
137.62.0.0/1665.5kRIPE NCCCH1st Sept 1993
137.93.0.0/1665.5kRIPE NCCNO1st Sept 1993
138.124.154.0/23512RIPE NCCCH1st Sept 1993
138.124.192.0/204.1kRIPE NCCNL1st Sept 1993
138.16.136.0/24256RIPE NCCRU23rd Jan 1990
138.16.208.0/204.1kRIPE NCCRU23rd Jan 1990
138.16.236.0/221kRIPE NCCRU23rd Jan 1990
138.199.64.0/204.1kRIPE NCCEU23rd May 1990
138.228.0.0/1665.5kRIPE NCCCH1st Sept 1993
139.10.0.0/1665.5kRIPE NCCDE1st Sept 1993
139.100.100.0/221kRIPE NCCUS15th Feb 1990
139.100.160.0/204.1kRIPE NCCRU15th Feb 1990
139.100.184.0/212kRIPE NCCFR15th Feb 1990
139.100.6.0/23512RIPE NCCFR15th Feb 1990
139.100.96.0/23512RIPE NCCCR15th Feb 1990
139.100.98.0/24256RIPE NCCFR15th Feb 1990
139.100.99.0/24256RIPE NCCUS15th Feb 1990
139.156.0.0/1665.5kRIPE NCCNL1st Sept 1993
139.158.0.0/1665.5kRIPE NCCFR1st Sept 1993
139.16.0.0/1665.5kRIPE NCCDE1st Sept 1993
139.21.0.0/1665.5kRIPE NCCDE27th Mar 1993
139.22.0.0/1665.5kRIPE NCCDE27th Mar 1993
139.25.0.0/1665.5kRIPE NCCDE14th Apr 1993