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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 1201 to 1250 of 6735
PrefixAddressesRegistryCountryAllocated
103.253.220.0/221kAPNICCN25th Nov 2013
103.253.224.0/221kAPNICCN25th Nov 2013
103.253.232.0/221kAPNICCN25th Nov 2013
103.253.4.0/221kAPNICCN6th Nov 2013
103.254.176.0/221kAPNICCN9th Dec 2013
103.254.20.0/221kAPNICCN26th Nov 2013
103.254.64.0/221kAPNICCN29th Nov 2013
103.254.8.0/221kAPNICCN26th Nov 2013
103.255.136.0/221kAPNICCN30th Dec 2013
103.255.184.0/221kAPNICCN3rd Jan 2014
103.255.212.0/221kAPNICCN7th Jan 2014
103.255.228.0/221kAPNICCN7th Jan 2014
103.255.88.0/221kAPNICCN26th Dec 2013
103.26.132.0/221kAPNICCN3rd Nov 2015
103.26.156.0/221kAPNICCN20th Jun 2013
103.26.160.0/221kAPNICCN20th Jun 2013
103.26.228.0/221kAPNICCN25th Jun 2013
103.26.240.0/221kAPNICCN26th Jun 2013
103.27.12.0/221kAPNICCN27th Jun 2013
103.27.212.0/221kAPNICCN11th Jul 2016
103.27.56.0/221kAPNICCN1st Jul 2013
103.27.96.0/221kAPNICCN2nd Jul 2013
103.28.184.0/221kAPNICCN23rd Jun 2016
103.28.4.0/221kAPNICCN13th Dec 2011
103.29.128.0/221kAPNICCN5th Aug 2011
103.29.132.0/221kAPNICCN8th Aug 2011
103.29.236.0/23512APNICCN1st Nov 2022
103.3.100.0/221kAPNICCN29th Apr 2011
103.3.104.0/221kAPNICCN29th Apr 2011
103.3.108.0/221kAPNICCN29th Apr 2011
103.3.132.0/221kAPNICCN29th Apr 2011
103.3.148.0/221kAPNICCN29th Apr 2011
103.3.84.0/221kAPNICCN29th Apr 2011
103.3.88.0/221kAPNICCN29th Apr 2011
103.3.92.0/221kAPNICCN29th Apr 2011
103.30.104.0/23512APNICCN4th Nov 2022
103.30.106.0/23512APNICCN4th Nov 2022
103.30.20.0/221kAPNICCN24th Oct 2012
103.30.228.0/221kAPNICCN15th Nov 2012
103.30.236.0/221kAPNICCN15th Nov 2012
103.30.96.0/221kAPNICCN1st Nov 2012
103.31.0.0/221kAPNICCN16th Nov 2012
103.31.148.0/221kAPNICCN27th Nov 2012
103.31.160.0/221kAPNICCN28th Nov 2012
103.31.168.0/221kAPNICCN28th Nov 2012
103.31.242.0/23512APNICCN7th Nov 2022
103.31.52.0/221kAPNICCN22nd Nov 2012
103.31.56.0/221kAPNICCN22nd Nov 2012
103.31.60.0/221kAPNICCN22nd Nov 2012
103.31.64.0/221kAPNICCN22nd Nov 2012