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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,755 blocks match, ordered by prefix.

Allocated but unannounced blocks, 901 to 950 of 84755
PrefixAddressesRegistryCountryAllocated
103.131.132.0/23512APNICJP19th Sept 2023
103.131.168.0/221kAPNICCN22nd Oct 2018
103.131.182.0/24256APNICIN3rd Jan 2023
103.131.20.0/221kAPNICCN15th Oct 2018
103.131.221.0/24256APNICPH25th Oct 2018
103.131.224.0/221kAPNICCN25th Oct 2018
103.131.228.0/221kAPNICCN25th Oct 2018
103.131.236.0/221kAPNICID25th Oct 2018
103.131.240.0/221kAPNICCN25th Oct 2018
103.131.246.0/24256APNICID25th Oct 2018
103.131.28.0/24256APNICID30th Dec 2022
103.131.34.0/24256APNICHK16th Oct 2018
103.131.36.0/221kAPNICCN16th Oct 2018
103.131.42.0/24256APNICAU16th Oct 2018
103.131.82.0/24256APNICAU21st Jun 2023
103.131.94.0/24256APNICID18th Oct 2018
103.132.104.0/212kAPNICCN4th Jan 2019
103.132.112.0/212kAPNICCN4th Jan 2019
103.132.120.0/221kAPNICCN4th Jan 2019
103.132.156.0/221kAPNICTW9th Jan 2019
103.132.171.0/24256APNICIN10th Jan 2019
103.132.188.0/221kAPNICCN11th Jan 2019
103.132.208.0/221kAPNICCN14th Jan 2019
103.132.246.0/23512APNICIN16th Jan 2019
103.132.48.0/221kAPNICCN2nd Jan 2019
103.132.60.0/221kAPNICCN2nd Jan 2019
103.132.64.0/204.1kAPNICCN2nd Jan 2019
103.132.80.0/221kAPNICCN2nd Jan 2019
103.133.12.0/221kAPNICCN18th Jan 2019
103.133.16.0/221kAPNICID18th Jan 2019
103.133.161.0/24256APNICAU29th Jan 2019
103.133.198.0/23512APNICIN8th May 2023
103.133.232.0/221kAPNICCN31st Jan 2019
103.133.3.0/24256APNICID17th Jan 2019
103.133.40.0/221kAPNICCN21st Jan 2019
103.133.75.0/24256APNICAF24th Jan 2019
103.134.104.0/221kAPNICID11th Feb 2019
103.134.136.0/221kAPNICUS14th Feb 2019
103.134.182.0/23512APNICAU15th Feb 2019
103.134.196.0/221kAPNICCN17th Feb 2019
103.134.232.0/23512APNICCN8th May 2023
103.134.80.0/221kAPNICTW11th Feb 2019
103.135.124.0/221kAPNICCN26th Feb 2019
103.135.13.0/24256APNICAU20th Feb 2019
103.135.148.0/221kAPNICCN27th Feb 2019
103.135.156.0/221kAPNICCN27th Feb 2019
103.135.16.0/221kAPNICTW20th Feb 2019
103.135.176.0/221kAPNICCN28th Feb 2019
103.135.184.0/221kAPNICCN28th Feb 2019
103.135.200.0/221kAPNICIN28th Feb 2019