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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks in China

6,720 blocks match, ordered by prefix.

Allocated but unannounced blocks, 451 to 500 of 6720
PrefixAddressesRegistryCountryAllocated
103.173.184.0/23512APNICCN26th Sept 2021
103.175.114.0/23512APNICCN29th Oct 2021
103.175.118.0/23512APNICCN29th Oct 2021
103.176.222.0/23512APNICCN23rd Nov 2021
103.176.244.0/23512APNICCN23rd Nov 2021
103.176.52.0/23512APNICCN11th Nov 2021
103.177.162.0/23512APNICCN6th Dec 2021
103.177.70.0/23512APNICCN28th Nov 2021
103.178.240.0/23512APNICCN31st Dec 2021
103.179.76.0/23512APNICCN11th Jan 2022
103.18.186.0/23512APNICCN11th Oct 2022
103.18.192.0/221kAPNICCN20th Mar 2013
103.18.208.0/221kAPNICCN21st Mar 2013
103.18.212.0/221kAPNICCN21st Mar 2013
103.18.224.0/221kAPNICCN22nd Mar 2013
103.180.226.0/23512APNICCN30th Jan 2022
103.183.26.0/23512APNICCN3rd Mar 2022
103.184.60.0/23512APNICCN22nd Mar 2022
103.185.78.0/23512APNICCN28th Mar 2022
103.185.80.0/23512APNICCN29th Mar 2022
103.186.158.0/23512APNICCN21st Apr 2022
103.186.228.0/23512APNICCN29th Apr 2022
103.189.152.0/23512APNICCN14th Jun 2022
103.19.12.0/221kAPNICCN26th Mar 2013
103.19.40.0/221kAPNICCN27th Mar 2013
103.19.68.0/221kAPNICCN28th Mar 2013
103.19.72.0/221kAPNICCN28th Mar 2013
103.190.104.0/23512APNICCN1st Jul 2022
103.190.116.0/23512APNICCN1st Jul 2022
103.190.20.0/23512APNICCN24th Jun 2022
103.190.71.0/24256APNICCN30th Jun 2022
103.192.100.0/221kAPNICCN17th Jul 2015
103.192.104.0/221kAPNICCN17th Jul 2015
103.192.108.0/221kAPNICCN17th Jul 2015
103.192.112.0/221kAPNICCN17th Jul 2015
103.192.128.0/221kAPNICCN20th Jul 2015
103.192.136.0/221kAPNICCN20th Jul 2015
103.192.140.0/221kAPNICCN20th Jul 2015
103.192.144.0/221kAPNICCN20th Jul 2015
103.192.164.0/221kAPNICCN20th Jul 2015
103.192.216.0/221kAPNICCN22nd Jul 2015
103.192.4.0/221kAPNICCN15th Jul 2015
103.192.48.0/221kAPNICCN16th Jul 2015
103.192.52.0/221kAPNICCN16th Jul 2015
103.192.56.0/221kAPNICCN16th Jul 2015
103.192.84.0/221kAPNICCN17th Jul 2015
103.192.88.0/221kAPNICCN17th Jul 2015
103.192.92.0/221kAPNICCN17th Jul 2015
103.192.96.0/221kAPNICCN17th Jul 2015
103.193.120.0/221kAPNICCN28th Jul 2015