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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks

84,738 blocks match, ordered by prefix.

Allocated but unannounced blocks, 551 to 600 of 84738
PrefixAddressesRegistryCountryAllocated
103.107.108.0/221kAPNICCN11th Jan 2018
103.107.12.0/221kAPNICHK5th Jan 2018
103.107.122.0/24256APNICBD15th Jan 2018
103.107.141.0/24256APNICID15th Jan 2018
103.107.149.0/24256APNICAU16th Jan 2018
103.107.152.0/221kAPNICPG16th Jan 2018
103.107.164.0/221kAPNICCN16th Jan 2018
103.107.168.0/221kAPNICCN16th Jan 2018
103.107.185.0/24256APNICAU17th Jan 2018
103.107.188.0/221kAPNICCN17th Jan 2018
103.107.192.0/221kAPNICCN17th Jan 2018
103.107.208.0/221kAPNICCN18th Jan 2018
103.107.212.0/221kAPNICCN18th Jan 2018
103.107.224.0/23512APNICAU19th Jan 2018
103.107.28.0/221kAPNICCN8th Jan 2018
103.107.32.0/221kAPNICCN8th Jan 2018
103.107.42.0/24256APNICSG8th Jan 2018
103.107.44.0/221kAPNICCN9th Jan 2018
103.107.72.0/221kAPNICCN10th Jan 2018
103.108.119.0/24256APNICID29th Jan 2018
103.108.160.0/221kAPNICCN1st Feb 2018
103.108.164.0/221kAPNICCN1st Feb 2018
103.108.173.0/24256APNICID1st Feb 2018
103.108.196.0/221kAPNICCN5th Feb 2018
103.108.208.0/221kAPNICCN5th Feb 2018
103.108.212.0/221kAPNICCN6th Feb 2018
103.108.216.0/23512APNICHK6th Feb 2018
103.108.224.0/221kAPNICCN7th Feb 2018
103.108.52.0/221kAPNICCN23rd Jan 2018
103.108.76.0/221kAPNICIN24th Jan 2018
103.108.83.0/24256APNICIN24th Jan 2018
103.109.116.0/221kAPNICLA13th Feb 2018
103.109.149.0/24256APNICID8th Dec 2022
103.109.150.0/24256APNICIN19th Feb 2018
103.109.232.0/24256APNICAU21st Feb 2018
103.109.236.0/23512APNICLT21st Feb 2018
103.109.247.0/24256APNICID23rd Feb 2018
103.109.248.0/221kAPNICCN22nd Feb 2018
103.109.28.0/221kAPNICVN8th Feb 2018
103.109.48.0/221kAPNICCN9th Feb 2018
103.109.64.0/221kAPNICKR9th Feb 2018
103.109.76.0/24256APNICIN9th Feb 2018
103.109.77.0/24256APNICAU12th Feb 2018
103.109.84.0/221kAPNICIN9th Feb 2018
103.109.88.0/221kAPNICCN11th Feb 2018
103.11.148.0/23512APNICID26th Oct 2011
103.11.16.0/221kAPNICCN23rd Jun 2016
103.11.168.0/221kAPNICCN29th Oct 2015
103.11.176.0/23512APNICID28th Oct 2011
103.11.180.0/221kAPNICCN28th Oct 2011