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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,555 blocks match, ordered by prefix.

Allocated but unannounced blocks, 75801 to 75850 of 84555
PrefixAddressesRegistryCountryAllocated
2a11:5380::/2934.4B × /64RIPE NCCIL13th Nov 2025
2a11:5440::/2934.4B × /64RIPE NCCNL28th Sept 2021
2a11:54c0::/2934.4B × /64RIPE NCCUA28th Sept 2021
2a11:5500::/2934.4B × /64RIPE NCCNL30th Jul 2021
2a11:5540::/2934.4B × /64RIPE NCCDE28th Sept 2021
2a11:5580::/2934.4B × /64RIPE NCCSC19th Aug 2021
2a11:55c0::/2934.4B × /64RIPE NCCSC29th Sept 2021
2a11:5600::/2934.4B × /64RIPE NCCTR19th Jul 2021
2a11:5640::/2934.4B × /64RIPE NCCSC29th Sept 2021
2a11:56c0::/2934.4B × /64RIPE NCCSC29th Sept 2021
2a11:5740::/2934.4B × /64RIPE NCCSC29th Sept 2021
2a11:57c0::/2934.4B × /64RIPE NCCSC29th Sept 2021
2a11:5800::/2934.4B × /64RIPE NCCNL6th Jul 2021
2a11:5840::/2934.4B × /64RIPE NCCSC29th Sept 2021
2a11:58c0::/2934.4B × /64RIPE NCCLT29th Sept 2021
2a11:5900::/2934.4B × /64RIPE NCCCY2nd Aug 2021
2a11:5940::/2934.4B × /64RIPE NCCSC29th Sept 2021
2a11:5980::/2934.4B × /64RIPE NCCHK20th Aug 2021
2a11:5a40::/2934.4B × /64RIPE NCCRU29th Sept 2021
2a11:5a80::/2934.4B × /64RIPE NCCSC20th Aug 2021
2a11:5b80::/2934.4B × /64RIPE NCCSC20th Aug 2021
2a11:5c0::/2934.4B × /64RIPE NCCGB30th Jun 2021
2a11:5c40::/2934.4B × /64RIPE NCCES30th Sept 2021
2a11:5d40::/2934.4B × /64RIPE NCCNL30th Sept 2021
2a11:5d80::/2934.4B × /64RIPE NCCNL20th Aug 2021
2a11:5e80::/2934.4B × /64RIPE NCCNL20th Aug 2021
2a11:5f00::/2934.4B × /64RIPE NCCSC2nd Aug 2021
2a11:5f80::/2934.4B × /64RIPE NCCSC20th Aug 2021
2a11:5fc0::/2934.4B × /64RIPE NCCTR1st Oct 2021
2a11:6040::/2934.4B × /64RIPE NCCHK1st Oct 2021
2a11:6080::/2934.4B × /64RIPE NCCSC20th Aug 2021
2a11:60c0::/2934.4B × /64RIPE NCCGB1st Oct 2021
2a11:6140::/2934.4B × /64RIPE NCCSC1st Oct 2021
2a11:6180::/2934.4B × /64RIPE NCCSC20th Aug 2021
2a11:61c0::/324.3B × /64RIPE NCCES1st Oct 2021
2a11:6200::/2934.4B × /64RIPE NCCNL19th Jul 2021
2a11:6240::/2934.4B × /64RIPE NCCKW24th Apr 2024
2a11:6280::/2934.4B × /64RIPE NCCSC20th Aug 2021
2a11:62c0::/2934.4B × /64RIPE NCCHK1st Oct 2021
2a11:6300::/2934.4B × /64RIPE NCCRU2nd Aug 2021
2a11:6340::/2934.4B × /64RIPE NCCRU1st Oct 2021
2a11:63c0::/2934.4B × /64RIPE NCCSC1st Oct 2021
2a11:6400::/2934.4B × /64RIPE NCCPL12th Jul 2021
2a11:640::/2934.4B × /64RIPE NCCRU1st Jul 2021
2a11:6440::/2934.4B × /64RIPE NCCSC1st Oct 2021
2a11:6680::/2934.4B × /64RIPE NCCSC23rd Aug 2021
2a11:6740::/2934.4B × /64RIPE NCCPT14th Nov 2025
2a11:67c0::/2934.4B × /64RIPE NCCLT1st Oct 2021
2a11:6800::/2934.4B × /64RIPE NCCSC14th Nov 2025
2a11:6940::/2934.4B × /64RIPE NCCSC1st Oct 2021