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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,960 blocks match, ordered by prefix.

Allocated but unannounced blocks, 3951 to 4000 of 84960
PrefixAddressesRegistryCountryAllocated
103.53.100.0/221kAPNICCN23rd Mar 2015
103.53.104.0/221kAPNICIN23rd Mar 2015
103.53.12.0/221kAPNICJP18th Mar 2015
103.53.128.0/221kAPNICCN24th Mar 2015
103.53.132.0/221kAPNICCN24th Mar 2015
103.53.136.0/221kAPNICCN24th Mar 2015
103.53.140.0/221kAPNICCN24th Mar 2015
103.53.144.0/221kAPNICCN24th Mar 2015
103.53.180.0/221kAPNICCN25th Mar 2015
103.53.186.0/24256APNICMY27th Mar 2015
103.53.188.0/221kAPNICID25th Mar 2015
103.53.204.0/221kAPNICCN26th Mar 2015
103.53.212.0/221kAPNICCN23rd Jun 2016
103.53.224.0/221kAPNICHK27th Mar 2015
103.53.236.0/221kAPNICCN27th Mar 2015
103.53.240.0/221kAPNICIN27th Mar 2015
103.53.244.0/221kAPNICIN27th Mar 2015
103.53.248.0/221kAPNICCN30th Mar 2015
103.53.252.0/221kAPNICVN30th Mar 2015
103.53.48.0/221kAPNICHK20th Mar 2015
103.53.54.0/24256APNICIN20th Mar 2015
103.53.55.0/24256APNICIN23rd Mar 2015
103.53.64.0/221kAPNICCN20th Mar 2015
103.53.68.0/221kAPNICCN20th Mar 2015
103.53.92.0/221kAPNICCN23rd Mar 2015
103.54.148.0/221kAPNICBD8th Apr 2015
103.54.160.0/221kAPNICCN8th Apr 2015
103.54.164.0/221kAPNICCN8th Apr 2015
103.54.176.0/23512APNICIN14th Dec 2022
103.54.2.0/23512APNICID31st Mar 2015
103.54.208.0/221kAPNICJP9th Apr 2015
103.54.212.0/221kAPNICCN9th Apr 2015
103.54.228.0/23512APNICJP15th Dec 2022
103.54.232.0/221kAPNICAU10th Apr 2015
103.54.240.0/221kAPNICCN13th Apr 2015
103.54.244.0/221kAPNICIN13th Apr 2015
103.54.252.0/221kAPNICVN14th Apr 2015
103.54.32.0/221kAPNICIN30th Mar 2015
103.54.8.0/221kAPNICCN30th Mar 2015
103.54.82.0/23512APNICID14th Dec 2022
103.55.120.0/221kAPNICCN20th Apr 2015
103.55.133.0/24256APNICPK21st Apr 2015
103.55.140.0/221kAPNICTH21st Apr 2015
103.55.152.0/221kAPNICCN21st Apr 2015
103.55.157.0/24256APNICJP21st Apr 2015
103.55.161.0/24256APNICMV20th Sept 2022
103.55.165.0/24256APNICIN21st Apr 2015
103.55.176.0/23512APNICAU22nd Apr 2015
103.55.180.0/221kAPNICIN22nd Apr 2015
103.55.20.0/23512APNICIN16th Dec 2022