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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,001 blocks match, ordered by prefix.

Allocated but unannounced blocks, 76851 to 76900 of 85001
PrefixAddressesRegistryCountryAllocated
2a12:b740::/2934.4B × /64RIPE NCCDE4th Mar 2026
2a12:b800::/2934.4B × /64RIPE NCCSC2nd Nov 2021
2a12:b80::/2934.4B × /64RIPE NCCNL18th Nov 2021
2a12:b840::/324.3B × /64RIPE NCCES29th Mar 2022
2a12:b880::/2934.4B × /64RIPE NCCNL30th Nov 2021
2a12:b8c0::/324.3B × /64RIPE NCCSE29th Mar 2022
2a12:b9c0::/2934.4B × /64RIPE NCCLV30th Mar 2022
2a12:ba40::/2934.4B × /64RIPE NCCRU30th Mar 2022
2a12:ba80::/2934.4B × /64RIPE NCCSC30th Nov 2021
2a12:bac0::/2934.4B × /64RIPE NCCDE31st Mar 2022
2a12:bb40::/2934.4B × /64RIPE NCCNL31st Mar 2022
2a12:bb80::/2934.4B × /64RIPE NCCSC30th Nov 2021
2a12:bbc0::/2934.4B × /64RIPE NCCRU31st Mar 2022
2a12:bc00::/2934.4B × /64RIPE NCCHK3rd Nov 2021
2a12:bc40::/2934.4B × /64RIPE NCCEE31st Mar 2022
2a12:bcc0::/2934.4B × /64RIPE NCCES31st Mar 2022
2a12:bd40::/2934.4B × /64RIPE NCCIT31st Mar 2022
2a12:bd80::/2934.4B × /64RIPE NCCSC30th Nov 2021
2a12:bf00::/2934.4B × /64RIPE NCCNL16th Nov 2021
2a12:bf40::/2934.4B × /64RIPE NCCIS1st Apr 2022
2a12:c00::/2934.4B × /64RIPE NCCSC2nd Nov 2021
2a12:c040::/2934.4B × /64RIPE NCCCY4th Apr 2022
2a12:c0c0::/2934.4B × /64RIPE NCCIL11th Oct 2022
2a12:c100::/2934.4B × /64RIPE NCCNL16th Nov 2021
2a12:c200::/2934.4B × /64RIPE NCCGB8th Nov 2021
2a12:c240::/2934.4B × /64RIPE NCCBE5th Apr 2022
2a12:c280::/2934.4B × /64RIPE NCCSC1st Dec 2021
2a12:c2c0::/2934.4B × /64RIPE NCCRU6th Apr 2022
2a12:c300::/2934.4B × /64RIPE NCCRU16th Nov 2021
2a12:c3c0::/2934.4B × /64RIPE NCCIL6th Apr 2022
2a12:c400::/2934.4B × /64RIPE NCCSC3rd Nov 2021
2a12:c40::/2934.4B × /64RIPE NCCIT14th Dec 2021
2a12:c4c0::/324.3B × /64RIPE NCCDE7th Apr 2022
2a12:c500::/2934.4B × /64RIPE NCCTR16th Nov 2021
2a12:c540::/2934.4B × /64RIPE NCCNO7th Apr 2022
2a12:c580::/2934.4B × /64RIPE NCCLU1st Dec 2021
2a12:c5c0::/2934.4B × /64RIPE NCCRU7th Apr 2022
2a12:c600::/2934.4B × /64RIPE NCCDE8th Nov 2021
2a12:c640::/2934.4B × /64RIPE NCCBE7th Apr 2022
2a12:c680::/2934.4B × /64RIPE NCCSC1st Dec 2021
2a12:c700::/2934.4B × /64RIPE NCCSC16th Nov 2021
2a12:c80::/2934.4B × /64RIPE NCCIT18th Nov 2021
2a12:c880::/2934.4B × /64RIPE NCCSC1st Dec 2021
2a12:c900::/2934.4B × /64RIPE NCCSC16th Nov 2021
2a12:c9c0::/324.3B × /64RIPE NCCGB12th Apr 2022
2a12:ca00::/2934.4B × /64RIPE NCCGB8th Nov 2021
2a12:ca80::/2934.4B × /64RIPE NCCDE1st Dec 2021
2a12:cb80::/2934.4B × /64RIPE NCCGB1st Dec 2021
2a12:cbc0::/2934.4B × /64RIPE NCCRS19th Apr 2022
2a12:cc0::/2934.4B × /64RIPE NCCIL14th Dec 2021