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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

6,735 blocks match, ordered by prefix.

Allocated but unannounced blocks, 651 to 700 of 6735
PrefixAddressesRegistryCountryAllocated
103.203.116.0/221kAPNICCN30th Nov 2015
103.203.12.0/221kAPNICCN26th Nov 2015
103.203.120.0/221kAPNICCN30th Nov 2015
103.203.124.0/221kAPNICCN30th Nov 2015
103.203.128.0/221kAPNICCN30th Nov 2015
103.203.16.0/221kAPNICCN26th Nov 2015
103.203.164.0/221kAPNICCN1st Dec 2015
103.203.168.0/221kAPNICCN1st Dec 2015
103.203.192.0/221kAPNICCN2nd Dec 2015
103.203.20.0/221kAPNICCN26th Nov 2015
103.203.200.0/221kAPNICCN2nd Dec 2015
103.203.212.0/221kAPNICCN2nd Dec 2015
103.203.24.0/221kAPNICCN26th Nov 2015
103.203.28.0/221kAPNICCN26th Nov 2015
103.203.32.0/221kAPNICCN26th Nov 2015
103.203.4.0/221kAPNICCN26th Nov 2015
103.203.8.0/221kAPNICCN26th Nov 2015
103.204.112.0/221kAPNICCN15th Dec 2015
103.204.136.0/221kAPNICCN16th Dec 2015
103.204.140.0/221kAPNICCN16th Dec 2015
103.204.144.0/221kAPNICCN16th Dec 2015
103.204.148.0/221kAPNICCN16th Dec 2015
103.204.152.0/221kAPNICCN16th Dec 2015
103.204.196.0/221kAPNICCN17th Dec 2015
103.204.216.0/23512APNICCN26th Aug 2022
103.204.232.0/221kAPNICCN22nd Dec 2015
103.204.236.0/221kAPNICCN22nd Dec 2015
103.204.24.0/221kAPNICCN7th Dec 2015
103.204.88.0/221kAPNICCN14th Dec 2015
103.205.108.0/221kAPNICCN29th Dec 2015
103.205.116.0/221kAPNICCN30th Dec 2015
103.205.136.0/221kAPNICCN31st Dec 2015
103.205.162.0/24256APNICCN4th Jan 2016
103.205.196.0/221kAPNICCN5th Jan 2016
103.205.200.0/221kAPNICCN5th Jan 2016
103.205.236.0/221kAPNICCN8th Jan 2016
103.205.248.0/221kAPNICCN8th Jan 2016
103.205.40.0/221kAPNICCN25th Dec 2015
103.205.44.0/221kAPNICCN25th Dec 2015
103.205.52.0/221kAPNICCN28th Dec 2015
103.206.0.0/221kAPNICCN8th Jan 2016
103.206.148.0/221kAPNICCN14th Jan 2016
103.206.44.0/221kAPNICCN12th Jan 2016
103.207.104.0/221kAPNICCN26th Jan 2016
103.207.184.0/221kAPNICCN29th Jan 2016
103.207.188.0/221kAPNICCN29th Jan 2016
103.207.192.0/221kAPNICCN29th Jan 2016
103.207.196.0/221kAPNICCN29th Jan 2016
103.207.200.0/221kAPNICCN29th Jan 2016
103.207.204.0/221kAPNICCN29th Jan 2016