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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 6201 to 6250 of 6735
PrefixAddressesRegistryCountryAllocated
43.249.120.0/221kAPNICCN8th Oct 2014
43.249.132.0/221kAPNICCN9th Oct 2014
43.249.148.0/221kAPNICCN11th Oct 2014
43.249.152.0/221kAPNICCN11th Oct 2014
43.249.156.0/221kAPNICCN11th Oct 2014
43.249.160.0/221kAPNICCN11th Oct 2014
43.249.164.0/221kAPNICCN11th Oct 2014
43.249.4.0/221kAPNICCN1st Oct 2014
43.250.100.0/221kAPNICCN23rd Oct 2014
43.250.108.0/221kAPNICCN23rd Oct 2014
43.250.12.0/221kAPNICCN21st Oct 2014
43.250.128.0/221kAPNICCN27th Oct 2014
43.250.148.0/221kAPNICCN28th Oct 2014
43.250.16.0/221kAPNICCN21st Oct 2014
43.250.160.0/221kAPNICCN28th Oct 2014
43.250.176.0/221kAPNICCN29th Oct 2014
43.250.180.0/23512APNICCN31st Oct 2023
43.250.20.0/221kAPNICCN21st Oct 2014
43.250.212.0/221kAPNICCN31st Oct 2014
43.250.216.0/221kAPNICCN31st Oct 2014
43.250.220.0/221kAPNICCN31st Oct 2014
43.250.28.0/221kAPNICCN21st Oct 2014
43.250.36.0/221kAPNICCN21st Oct 2014
43.251.192.0/221kAPNICCN13th Nov 2014
43.252.56.0/221kAPNICCN5th Jun 2014
43.254.112.0/221kAPNICCN24th Jul 2014
43.254.128.0/221kAPNICCN24th Jul 2014
43.254.180.0/221kAPNICCN25th Jul 2014
43.254.184.0/221kAPNICCN25th Jul 2014
43.254.188.0/221kAPNICCN25th Jul 2014
43.254.196.0/221kAPNICCN25th Jul 2014
43.254.208.0/221kAPNICCN25th Jul 2014
43.254.36.0/221kAPNICCN22nd Jul 2014
43.254.4.0/221kAPNICCN20th Jul 2014
43.254.72.0/221kAPNICCN23rd Jul 2014
43.254.84.0/221kAPNICCN23rd Jul 2014
43.254.92.0/221kAPNICCN23rd Jul 2014
43.255.144.0/221kAPNICCN6th Aug 2014
43.255.176.0/221kAPNICCN7th Aug 2014
43.255.192.0/221kAPNICCN7th Aug 2014
43.255.204.0/221kAPNICCN7th Aug 2014
43.255.208.0/221kAPNICCN7th Aug 2014
43.255.232.0/221kAPNICCN7th Aug 2014
43.255.244.0/221kAPNICCN8th Aug 2014
43.255.4.0/221kAPNICCN29th Jul 2014
43.255.48.0/221kAPNICCN30th Jul 2014
43.255.64.0/221kAPNICCN31st Jul 2014
43.255.72.0/221kAPNICCN31st Jul 2014
43.255.76.0/221kAPNICCN31st Jul 2014
43.255.8.0/221kAPNICCN29th Jul 2014