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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,954 blocks match, ordered by prefix.

Allocated but unannounced blocks, 3251 to 3300 of 84954
PrefixAddressesRegistryCountryAllocated
103.254.50.0/24256APNICAU28th Nov 2013
103.254.51.0/24256APNICID28th Nov 2013
103.254.6.0/24256APNICAU26th Nov 2013
103.254.64.0/221kAPNICCN29th Nov 2013
103.254.8.0/221kAPNICCN26th Nov 2013
103.254.90.0/24256APNICAU3rd Dec 2013
103.254.96.0/221kAPNICIN3rd Dec 2013
103.255.120.0/221kAPNICID27th Dec 2013
103.255.127.0/24256APNICHK7th Jan 2014
103.255.136.0/221kAPNICCN30th Dec 2013
103.255.14.0/24256APNICID18th Dec 2013
103.255.166.0/23512APNICID27th Oct 2023
103.255.168.0/23512APNICIN2nd Jan 2014
103.255.184.0/221kAPNICCN3rd Jan 2014
103.255.188.0/221kAPNICIN3rd Jan 2014
103.255.206.0/23512APNICTW22nd Aug 2023
103.255.212.0/221kAPNICCN7th Jan 2014
103.255.228.0/221kAPNICCN7th Jan 2014
103.255.249.0/24256APNICAU8th Jan 2014
103.255.29.0/24256APNICID20th Dec 2013
103.255.32.0/221kAPNICSG19th Dec 2013
103.255.42.0/23512APNICTW18th Aug 2023
103.255.48.0/221kAPNICAU20th Dec 2013
103.255.78.0/23512APNICAU27th Dec 2013
103.255.84.0/221kAPNICVN26th Dec 2013
103.255.88.0/221kAPNICCN26th Dec 2013
103.255.98.0/23512APNICID21st Aug 2023
103.26.101.0/24256APNICID19th Jun 2013
103.26.104.0/221kAPNICIN19th Jun 2013
103.26.118.0/23512APNICID25th Oct 2022
103.26.132.0/221kAPNICCN3rd Nov 2015
103.26.156.0/221kAPNICCN20th Jun 2013
103.26.160.0/221kAPNICCN20th Jun 2013
103.26.168.0/24256APNICIN21st Jun 2013
103.26.180.0/221kAPNICTH21st Jun 2013
103.26.228.0/221kAPNICCN25th Jun 2013
103.26.234.0/23512APNICIN25th Jun 2013
103.26.240.0/221kAPNICCN26th Jun 2013
103.26.60.0/221kAPNICAU18th Jun 2013
103.26.68.0/221kAPNICAU18th Jun 2013
103.27.0.0/24256APNICHK26th Jun 2013
103.27.100.0/221kAPNICTH2nd Jul 2013
103.27.12.0/221kAPNICCN27th Jun 2013
103.27.136.0/221kAPNICJP3rd Jul 2013
103.27.168.0/221kAPNICIN4th Jul 2013
103.27.188.0/221kAPNICAU8th Jul 2013
103.27.196.0/221kAPNICAU9th Jul 2013
103.27.212.0/221kAPNICCN11th Jul 2016
103.27.220.0/221kAPNICJP9th Jul 2013
103.27.228.0/221kAPNICSG9th Jul 2013