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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks

84,755 blocks match, ordered by prefix.

Allocated but unannounced blocks, 801 to 850 of 84755
PrefixAddressesRegistryCountryAllocated
103.123.116.0/221kAPNICCN27th Sept 2018
103.123.120.0/221kAPNICID27th Sept 2018
103.123.124.0/221kAPNICTW27th Sept 2018
103.123.176.0/221kAPNICCN28th Sept 2018
103.123.184.0/221kAPNICTW28th Sept 2018
103.123.20.0/221kAPNICID21st Sept 2018
103.123.200.0/221kAPNICCN29th Sept 2018
103.123.204.0/221kAPNICCN29th Sept 2018
103.123.208.0/221kAPNICCN30th Sept 2018
103.123.212.0/221kAPNICCN30th Sept 2018
103.123.238.0/23512APNICMY2nd Oct 2018
103.123.252.0/221kAPNICTW3rd Oct 2018
103.123.56.0/221kAPNICCN25th Sept 2018
103.123.75.0/24256APNICPK26th Sept 2018
103.123.80.0/221kAPNICID26th Sept 2018
103.123.86.0/23512APNICIN26th Sept 2018
103.123.88.0/221kAPNICCN26th Sept 2018
103.123.92.0/221kAPNICCN26th Sept 2018
103.124.212.0/221kAPNICCN6th Nov 2018
103.124.216.0/221kAPNICCN6th Nov 2018
103.124.232.0/221kAPNICBD6th Nov 2018
103.124.24.0/221kAPNICCN29th Oct 2018
103.124.240.0/221kAPNICIN6th Nov 2018
103.124.4.0/221kAPNICID26th Oct 2018
103.124.48.0/221kAPNICCN29th Oct 2018
103.124.64.0/221kAPNICCN29th Oct 2018
103.124.68.0/221kAPNICID30th Oct 2018
103.124.78.0/23512APNICIN31st Mar 2023
103.125.115.0/24256APNICHK22nd Nov 2018
103.125.132.0/221kAPNICCN18th Nov 2018
103.125.152.0/23512APNICAU19th Nov 2018
103.125.164.0/221kAPNICCN20th Nov 2018
103.125.182.0/23512APNICMY2nd Apr 2023
103.125.187.0/24256APNICAU22nd Nov 2018
103.125.196.0/221kAPNICCN22nd Nov 2018
103.125.20.0/221kAPNICCN9th Nov 2018
103.125.204.0/221kAPNICAU22nd Nov 2018
103.125.24.0/24256APNICBD11th Nov 2018
103.125.25.0/24256APNICNP12th Nov 2018
103.125.26.0/23512APNICNP12th Nov 2018
103.125.44.0/221kAPNICCN12th Nov 2018
103.125.54.0/23512APNICBD13th Nov 2018
103.125.64.0/23512APNICTW14th Nov 2018
103.125.66.0/23512APNICTW14th Nov 2018
103.125.80.0/23512APNICIN14th Nov 2018
103.125.83.0/24256APNICSG16th Nov 2018
103.126.112.0/221kARINUS18th Jun 2024
103.126.120.0/24256APNICID30th Nov 2018
103.126.121.0/24256APNICAU4th Dec 2018
103.126.128.0/221kAPNICCN2nd Dec 2018