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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Browse by country

Countries with unannounced space registered through RIPE NCC, largest first.

Unannounced blocks registered through RIPE NCC

25,273 blocks match, ordered by prefix.

Allocated but unannounced blocks, 3851 to 3900 of 25273
PrefixAddressesRegistryCountryAllocated
192.149.57.0/24256RIPE NCCGB27th Feb 1992
192.149.59.0/24256RIPE NCCFR2nd Mar 1992
192.149.60.0/24256RIPE NCCGB2nd Mar 1992
192.149.77.0/24256RIPE NCCFR2nd Mar 1992
192.149.78.0/24256RIPE NCCNO2nd Mar 1992
192.149.79.0/24256RIPE NCCNO2nd Mar 1992
192.150.104.0/24256RIPE NCCPL10th Mar 1992
192.150.106.0/24256RIPE NCCGB10th Mar 1992
192.150.124.0/24256RIPE NCCNO12th Mar 1992
192.150.140.0/24256RIPE NCCGB13th Mar 1992
192.150.146.0/24256RIPE NCCIT16th Mar 1992
192.150.177.0/24256RIPE NCCGB17th Mar 1992
192.150.178.0/24256RIPE NCCGB17th Mar 1992
192.150.179.0/24256RIPE NCCGB17th Mar 1992
192.150.180.0/24256RIPE NCCGB17th Mar 1992
192.150.181.0/24256RIPE NCCGB17th Mar 1992
192.150.182.0/24256RIPE NCCGB17th Mar 1992
192.150.183.0/24256RIPE NCCGB17th Mar 1992
192.150.188.0/24256RIPE NCCNO18th Mar 1992
192.150.189.0/24256RIPE NCCDE18th Mar 1992
192.150.190.0/24256RIPE NCCDE18th Mar 1992
192.150.192.0/24256RIPE NCCPT18th Mar 1992
192.150.193.0/24256RIPE NCCPT18th Mar 1992
192.150.197.0/24256RIPE NCCNO18th Mar 1992
192.150.198.0/24256RIPE NCCGB18th Mar 1992
192.150.20.0/24256RIPE NCCIE25th Jun 1992
192.150.203.0/24256RIPE NCCAT19th Mar 1992
192.150.205.0/24256RIPE NCCRU19th Mar 1992
192.150.208.0/24256RIPE NCCGB19th Mar 1992
192.150.209.0/24256RIPE NCCNO19th Mar 1992
192.150.223.0/24256RIPE NCCNO20th Mar 1992
192.150.227.0/24256RIPE NCCGB20th Mar 1992
192.150.228.0/24256RIPE NCCGB20th Mar 1992
192.150.229.0/24256RIPE NCCGB20th Mar 1992
192.150.230.0/24256RIPE NCCGB20th Mar 1992
192.150.231.0/24256RIPE NCCGB20th Mar 1992
192.150.232.0/24256RIPE NCCGB20th Mar 1992
192.150.233.0/24256RIPE NCCGB20th Mar 1992
192.150.238.0/24256RIPE NCCHU23rd Mar 1992
192.150.248.0/24256RIPE NCCGB26th Mar 1992
192.150.254.0/24256RIPE NCCNO27th Mar 1992
192.150.58.0/23512RIPE NCCSE13th Aug 1992
192.150.60.0/221kRIPE NCCSE13th Aug 1992
192.150.64.0/221kRIPE NCCSE13th Aug 1992
192.150.68.0/23512RIPE NCCSE13th Aug 1992
192.150.70.0/24256RIPE NCCSE13th Aug 1992
192.150.72.0/24256RIPE NCCSE13th Aug 1992
192.150.76.0/24256RIPE NCCSE13th Aug 1992
192.150.78.0/24256RIPE NCCSE19th May 1994
192.150.79.0/24256RIPE NCCSE5th Mar 1992