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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.

Unannounced blocks

84,960 blocks match, ordered by prefix.

Allocated but unannounced blocks, 4201 to 4250 of 84960
PrefixAddressesRegistryCountryAllocated
103.63.20.0/221kAPNICIN9th Jul 2015
103.63.200.0/221kAPNICCN13th Jul 2015
103.63.204.0/221kAPNICCN13th Jul 2015
103.63.208.0/221kAPNICCN13th Jul 2015
103.63.232.0/24256APNICIN27th Sept 2022
103.63.240.0/221kAPNICCN15th Jul 2015
103.63.248.0/221kAPNICCN15th Jul 2015
103.63.252.0/221kAPNICCN15th Jul 2015
103.63.27.0/24256APNICWS10th Jul 2015
103.63.32.0/221kAPNICCN10th Jul 2015
103.63.36.0/221kAPNICCN10th Jul 2015
103.63.40.0/221kAPNICCN10th Jul 2015
103.63.44.0/221kAPNICCN10th Jul 2015
103.63.48.0/221kAPNICCN10th Jul 2015
103.63.52.0/221kAPNICCN10th Jul 2015
103.63.56.0/221kAPNICCN10th Jul 2015
103.63.60.0/221kAPNICCN10th Jul 2015
103.63.64.0/221kAPNICCN10th Jul 2015
103.63.68.0/221kAPNICCN10th Jul 2015
103.63.72.0/221kAPNICCN10th Jul 2015
103.63.76.0/221kAPNICCN10th Jul 2015
103.63.8.0/221kAPNICIN9th Jul 2015
103.63.80.0/221kAPNICCN10th Jul 2015
103.63.84.0/221kAPNICCN10th Jul 2015
103.63.88.0/221kAPNICCN10th Jul 2015
103.64.0.0/221kAPNICCN6th Jun 2016
103.64.100.0/221kAPNICCN6th Jun 2016
103.64.104.0/221kAPNICCN6th Jun 2016
103.64.108.0/221kAPNICCN6th Jun 2016
103.64.112.0/221kAPNICCN6th Jun 2016
103.64.116.0/221kAPNICCN6th Jun 2016
103.64.120.0/221kAPNICCN6th Jun 2016
103.64.124.0/221kAPNICCN6th Jun 2016
103.64.130.0/23512APNICIN3rd Jan 2023
103.64.160.0/221kAPNICCN7th Jun 2016
103.64.164.0/221kAPNICCN7th Jun 2016
103.64.168.0/221kAPNICCN7th Jun 2016
103.64.172.0/221kAPNICCN7th Jun 2016
103.64.176.0/221kAPNICCN7th Jun 2016
103.64.180.0/221kAPNICCN7th Jun 2016
103.64.184.0/221kAPNICCN7th Jun 2016
103.64.188.0/221kAPNICCN7th Jun 2016
103.64.192.0/221kAPNICCN7th Jun 2016
103.64.196.0/221kAPNICCN7th Jun 2016
103.64.200.0/221kAPNICCN7th Jun 2016
103.64.204.0/221kAPNICCN7th Jun 2016
103.64.216.0/221kAPNICCN7th Jun 2016
103.64.220.0/221kAPNICCN7th Jun 2016
103.64.224.0/221kAPNICCN7th Jun 2016
103.64.228.0/221kAPNICCN7th Jun 2016