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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

25,269 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1001 to 1050 of 25269
PrefixAddressesRegistryCountryAllocated
168.113.128.0/198.2kRIPE NCCSC24th Mar 1994
168.113.160.0/204.1kRIPE NCCSC24th Mar 1994
168.113.176.0/204.1kRIPE NCCRU24th Mar 1994
168.113.192.0/204.1kRIPE NCCRU24th Mar 1994
168.113.208.0/221kRIPE NCCRU24th Mar 1994
168.113.212.0/221kRIPE NCCRU24th Mar 1994
168.113.216.0/212kRIPE NCCKG24th Mar 1994
168.113.224.0/221kRIPE NCCCA24th Mar 1994
168.113.228.0/23512RIPE NCCKG24th Mar 1994
168.113.230.0/24256RIPE NCCKG24th Mar 1994
168.113.231.0/24256RIPE NCCCA24th Mar 1994
168.113.232.0/212kRIPE NCCRU24th Mar 1994
168.113.244.0/221kRIPE NCCRU24th Mar 1994
168.113.248.0/23512RIPE NCCRU24th Mar 1994
168.113.250.0/23512RIPE NCCRU24th Mar 1994
168.113.252.0/221kRIPE NCCRU24th Mar 1994
168.139.0.0/1665.5kRIPE NCCTR10th May 1994
168.151.21.0/24256RIPE NCCUS4th Apr 1994
168.222.128.0/212kRIPE NCCRU12th Aug 1994
168.222.136.0/221kRIPE NCCRU12th Aug 1994
168.222.184.0/24256RIPE NCCCA12th Aug 1994
168.222.224.0/212kRIPE NCCRU12th Aug 1994
168.222.236.0/221kRIPE NCCPL12th Aug 1994
169.36.0.0/15131kRIPE NCCCH1st Sept 1993
169.39.0.0/1665.5kRIPE NCCCH1st Sept 1993
169.41.0.0/1665.5kRIPE NCCCH1st Sept 1993
169.42.0.0/15131kRIPE NCCCH1st Sept 1993
169.49.0.0/1665.5kRIPE NCCCH1st Sept 1993
169.52.0.0/1665.5kRIPE NCCCH1st Sept 1993
170.100.147.0/24256RIPE NCCUS24th Mar 1994
170.236.0.0/1665.5kRIPE NCCCH26th Mar 1997
170.237.128.0/1732.8kRIPE NCCCH26th Mar 1997
170.237.16.0/204.1kRIPE NCCCH26th Mar 1997
170.237.32.0/198.2kRIPE NCCCH26th Mar 1997
170.237.64.0/1816.4kRIPE NCCCH26th Mar 1997
170.246.64.0/221kRIPE NCCNL10th Feb 2017
170.37.203.0/24256RIPE NCCFR3rd Feb 1994
170.37.204.0/23512RIPE NCCFR3rd Feb 1994
170.37.206.0/24256RIPE NCCFR3rd Feb 1994
170.60.0.0/1665.5kRIPE NCCCH22nd Feb 1994
170.62.190.0/24256RIPE NCCLT22nd Feb 1994
171.22.124.0/221kRIPE NCCCY31st Jan 2019
171.22.19.0/24256RIPE NCCBG30th Jan 2019
171.22.200.0/221kRIPE NCCUS1st Feb 2019
171.22.236.0/221kRIPE NCCRU1st Feb 2019
171.22.242.0/24256RIPE NCCRU10th Jan 2024
171.22.243.0/24256RIPE NCCVG10th Jan 2024
171.22.36.0/221kRIPE NCCBZ30th Jan 2019
171.25.0.0/1732.8kRIPE NCCCH9th Aug 1994
171.25.176.0/24256RIPE NCCCZ12th Jan 2012