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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 1601 to 1650 of 6735
PrefixAddressesRegistryCountryAllocated
103.46.248.0/221kAPNICCN22nd Dec 2014
103.47.108.0/221kAPNICCN31st Dec 2014
103.47.116.0/221kAPNICCN31st Dec 2014
103.47.120.0/221kAPNICCN31st Dec 2014
103.47.136.0/221kAPNICCN4th Jan 2015
103.47.140.0/221kAPNICCN4th Jan 2015
103.47.20.0/221kAPNICCN24th Dec 2014
103.47.212.0/221kAPNICCN7th Jan 2015
103.47.36.0/221kAPNICCN24th Dec 2014
103.47.4.0/221kAPNICCN22nd Dec 2014
103.47.40.0/221kAPNICCN24th Dec 2014
103.47.96.0/221kAPNICCN30th Dec 2014
103.48.148.0/221kAPNICCN22nd Jan 2015
103.48.152.0/221kAPNICCN22nd Jan 2015
103.48.156.0/221kAPNICCN22nd Jan 2015
103.48.202.0/23512APNICCN27th Jan 2015
103.48.216.0/221kAPNICCN27th Jan 2015
103.48.220.0/221kAPNICCN27th Jan 2015
103.48.224.0/221kAPNICCN27th Jan 2015
103.48.228.0/221kAPNICCN27th Jan 2015
103.48.232.0/221kAPNICCN27th Jan 2015
103.48.236.0/221kAPNICCN27th Jan 2015
103.48.240.0/221kAPNICCN27th Jan 2015
103.48.244.0/221kAPNICCN27th Jan 2015
103.48.52.0/221kAPNICCN16th Jan 2015
103.48.92.0/221kAPNICCN20th Jan 2015
103.49.180.0/221kAPNICCN5th Feb 2015
103.49.20.0/221kAPNICCN29th Jan 2015
103.49.72.0/221kAPNICCN2nd Feb 2015
103.49.76.0/221kAPNICCN2nd Feb 2015
103.49.96.0/221kAPNICCN3rd Feb 2015
103.5.152.0/221kAPNICCN29th Oct 2015
103.5.168.0/221kAPNICCN29th Oct 2015
103.5.252.0/221kAPNICCN10th Oct 2011
103.5.36.0/221kAPNICCN8th Sept 2011
103.5.56.0/221kAPNICCN12th Sept 2011
103.50.108.0/221kAPNICCN12th Feb 2015
103.50.112.0/221kAPNICCN12th Feb 2015
103.50.116.0/221kAPNICCN12th Feb 2015
103.50.120.0/221kAPNICCN12th Feb 2015
103.50.124.0/221kAPNICCN12th Feb 2015
103.50.132.0/221kAPNICCN12th Feb 2015
103.50.136.0/221kAPNICCN12th Feb 2015
103.50.140.0/221kAPNICCN12th Feb 2015
103.50.172.0/221kAPNICCN13th Feb 2015
103.50.176.0/221kAPNICCN13th Feb 2015
103.50.180.0/221kAPNICCN13th Feb 2015
103.50.184.0/221kAPNICCN13th Feb 2015
103.50.188.0/221kAPNICCN13th Feb 2015
103.50.192.0/221kAPNICCN13th Feb 2015