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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 1651 to 1700 of 6735
PrefixAddressesRegistryCountryAllocated
103.50.196.0/221kAPNICCN13th Feb 2015
103.50.200.0/221kAPNICCN13th Feb 2015
103.50.220.0/221kAPNICCN15th Feb 2015
103.50.224.0/221kAPNICCN15th Feb 2015
103.50.228.0/221kAPNICCN15th Feb 2015
103.50.232.0/221kAPNICCN15th Feb 2015
103.50.236.0/221kAPNICCN15th Feb 2015
103.50.240.0/221kAPNICCN15th Feb 2015
103.50.244.0/221kAPNICCN15th Feb 2015
103.50.248.0/221kAPNICCN15th Feb 2015
103.50.36.0/221kAPNICCN11th Feb 2015
103.50.44.0/221kAPNICCN11th Feb 2015
103.50.48.0/221kAPNICCN11th Feb 2015
103.50.52.0/221kAPNICCN11th Feb 2015
103.50.56.0/221kAPNICCN11th Feb 2015
103.50.60.0/221kAPNICCN11th Feb 2015
103.50.64.0/221kAPNICCN11th Feb 2015
103.50.68.0/221kAPNICCN11th Feb 2015
103.50.72.0/221kAPNICCN11th Feb 2015
103.52.104.0/221kAPNICCN6th Mar 2015
103.52.160.0/221kAPNICCN11th Mar 2015
103.52.164.0/221kAPNICCN11th Mar 2015
103.52.184.0/221kAPNICCN11th Mar 2015
103.52.40.0/221kAPNICCN4th Mar 2015
103.52.72.0/221kAPNICCN6th Mar 2015
103.52.76.0/221kAPNICCN6th Mar 2015
103.52.80.0/221kAPNICCN6th Mar 2015
103.52.84.0/221kAPNICCN6th Mar 2015
103.52.96.0/221kAPNICCN6th Mar 2015
103.53.100.0/221kAPNICCN23rd Mar 2015
103.53.128.0/221kAPNICCN24th Mar 2015
103.53.132.0/221kAPNICCN24th Mar 2015
103.53.136.0/221kAPNICCN24th Mar 2015
103.53.140.0/221kAPNICCN24th Mar 2015
103.53.144.0/221kAPNICCN24th Mar 2015
103.53.180.0/221kAPNICCN25th Mar 2015
103.53.204.0/221kAPNICCN26th Mar 2015
103.53.212.0/221kAPNICCN23rd Jun 2016
103.53.236.0/221kAPNICCN27th Mar 2015
103.53.248.0/221kAPNICCN30th Mar 2015
103.53.64.0/221kAPNICCN20th Mar 2015
103.53.68.0/221kAPNICCN20th Mar 2015
103.53.92.0/221kAPNICCN23rd Mar 2015
103.54.160.0/221kAPNICCN8th Apr 2015
103.54.164.0/221kAPNICCN8th Apr 2015
103.54.212.0/221kAPNICCN9th Apr 2015
103.54.240.0/221kAPNICCN13th Apr 2015
103.54.8.0/221kAPNICCN30th Mar 2015
103.55.120.0/221kAPNICCN20th Apr 2015
103.55.152.0/221kAPNICCN21st Apr 2015