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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 2551 to 2600 of 6720
PrefixAddressesRegistryCountryAllocated
150.242.152.0/221kAPNICCN4th Jul 2014
150.242.160.0/221kAPNICCN4th Jul 2014
150.242.164.0/221kAPNICCN4th Jul 2014
150.242.188.0/221kAPNICCN7th Jul 2014
150.242.192.0/221kAPNICCN7th Jul 2014
150.242.224.0/221kAPNICCN8th Jul 2014
150.242.240.0/221kAPNICCN8th Jul 2014
150.242.28.0/221kAPNICCN2nd Jul 2014
150.242.4.0/221kAPNICCN1st Jul 2014
150.242.44.0/221kAPNICCN2nd Jul 2014
150.242.48.0/221kAPNICCN2nd Jul 2014
150.242.52.0/221kAPNICCN2nd Jul 2014
150.242.8.0/221kAPNICCN1st Jul 2014
150.242.92.0/221kAPNICCN3rd Jul 2014
150.248.0.0/1665.5kAPNICCN5th Aug 1991
151.158.122.0/23512APNICCN2nd Feb 2026
151.158.14.0/23512APNICCN14th Jan 2026
151.158.78.0/23512APNICCN23rd Jan 2026
151.158.80.0/23512APNICCN23rd Jan 2026
157.10.118.0/23512APNICCN10th Jan 2024
157.10.130.0/23512APNICCN10th Jan 2024
157.10.218.0/23512APNICCN18th Jan 2024
157.10.220.0/23512APNICCN18th Jan 2024
157.10.246.0/23512APNICCN19th Jan 2024
157.10.36.0/23512APNICCN2nd Jan 2024
157.119.12.0/221kAPNICCN21st Apr 2016
157.119.132.0/221kAPNICCN27th Apr 2016
157.119.136.0/221kAPNICCN27th Apr 2016
157.119.140.0/221kAPNICCN27th Apr 2016
157.119.144.0/221kAPNICCN27th Apr 2016
157.119.148.0/221kAPNICCN27th Apr 2016
157.119.152.0/221kAPNICCN27th Apr 2016
157.119.156.0/221kAPNICCN27th Apr 2016
157.119.16.0/221kAPNICCN21st Apr 2016
157.119.160.0/221kAPNICCN27th Apr 2016
157.119.164.0/221kAPNICCN27th Apr 2016
157.119.192.0/221kAPNICCN28th Apr 2016
157.119.196.0/221kAPNICCN28th Apr 2016
157.119.240.0/221kAPNICCN29th Apr 2016
157.119.8.0/221kAPNICCN21st Apr 2016
157.15.100.0/23512APNICCN1st Feb 2024
157.15.102.0/23512APNICCN1st Feb 2024
157.15.74.0/23512APNICCN30th Jan 2024
157.20.136.0/23512APNICCN29th Feb 2024
157.20.194.0/23512APNICCN12th Mar 2024
157.66.244.0/23512APNICCN8th May 2024
157.66.42.0/23512APNICCN29th Mar 2024
157.66.70.0/23512APNICCN3rd Apr 2024
157.66.88.0/23512APNICCN9th Apr 2024
157.66.90.0/23512APNICCN9th Apr 2024