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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 76651 to 76700 of 85001
PrefixAddressesRegistryCountryAllocated
2a12:5000::/2934.4B × /64RIPE NCCNL28th Oct 2021
2a12:500::/2934.4B × /64RIPE NCCIE9th Nov 2021
2a12:5080::/2934.4B × /64RIPE NCCUZ23rd Nov 2021
2a12:50c0::/2934.4B × /64RIPE NCCGB11th Jan 2022
2a12:5100::/2934.4B × /64RIPE NCCNO12th Nov 2021
2a12:51c0::/324.3B × /64RIPE NCCAE17th Dec 2025
2a12:52c0::/2934.4B × /64RIPE NCCFR12th Jan 2022
2a12:5300::/2934.4B × /64RIPE NCCNL12th Nov 2021
2a12:5380::/2934.4B × /64RIPE NCCFR23rd Nov 2021
2a12:5400::/2934.4B × /64RIPE NCCSC2nd Nov 2021
2a12:540::/2934.4B × /64RIPE NCCUS13th Dec 2021
2a12:5440::/2934.4B × /64RIPE NCCIR13th Jan 2022
2a12:5500::/2934.4B × /64RIPE NCCRO12th Nov 2021
2a12:5680::/2934.4B × /64RIPE NCCNL23rd Nov 2021
2a12:5700::/2934.4B × /64RIPE NCCRO12th Nov 2021
2a12:5780::/2934.4B × /64RIPE NCCCY23rd Nov 2021
2a12:57c0::/2934.4B × /64RIPE NCCHK17th Jan 2022
2a12:5880::/2934.4B × /64RIPE NCCDE23rd Nov 2021
2a12:58c0::/2934.4B × /64RIPE NCCIR17th Dec 2025
2a12:5980::/2934.4B × /64RIPE NCCFR23rd Nov 2021
2a12:59c0::/2934.4B × /64RIPE NCCBG17th Jan 2022
2a12:5a40::/2934.4B × /64RIPE NCCCH17th Jan 2022
2a12:5ac0::/324.3B × /64RIPE NCCOM17th Jan 2022
2a12:5b00::/2934.4B × /64RIPE NCCIR17th Dec 2025
2a12:5b40::/2934.4B × /64RIPE NCCSC18th Jan 2022
2a12:5c0::/2934.4B × /64RIPE NCCIT13th Dec 2021
2a12:5c40::/2934.4B × /64RIPE NCCTR19th Jan 2022
2a12:5c80::/2934.4B × /64RIPE NCCSC23rd Nov 2021
2a12:5cc0::/324.3B × /64RIPE NCCLU24th Feb 2026
2a12:5d00::/2934.4B × /64RIPE NCCSC12th Nov 2021
2a12:5d80::/2934.4B × /64RIPE NCCDK23rd Nov 2021
2a12:5ec0::/324.3B × /64RIPE NCCCH24th Feb 2026
2a12:5f00::/2934.4B × /64RIPE NCCRO12th Nov 2021
2a12:5fc0::/2934.4B × /64RIPE NCCIT21st Jan 2022
2a12:6040::/2934.4B × /64RIPE NCCUA21st Jan 2022
2a12:6140::/2934.4B × /64RIPE NCCSC21st Jan 2022
2a12:6180::/2934.4B × /64RIPE NCCNL23rd Nov 2021
2a12:61c0::/2934.4B × /64RIPE NCCAT24th Jan 2022
2a12:6240::/2934.4B × /64RIPE NCCSC24th Jan 2022
2a12:6280::/2934.4B × /64RIPE NCCSC23rd Nov 2021
2a12:62c0::/2934.4B × /64RIPE NCCCH26th Feb 2026
2a12:6340::/2934.4B × /64RIPE NCCGB24th Jan 2022
2a12:63c0::/2934.4B × /64RIPE NCCDK24th Jan 2022
2a12:6440::/324.3B × /64RIPE NCCRU24th Jan 2022
2a12:64c0::/2934.4B × /64RIPE NCCIT27th Feb 2026
2a12:6540::/2934.4B × /64RIPE NCCNL2nd Feb 2022
2a12:6580::/2934.4B × /64RIPE NCCNL4th Jun 2025
2a12:65c0::/2934.4B × /64RIPE NCCTR27th Feb 2026
2a12:6600::/2934.4B × /64RIPE NCCRU5th Nov 2021
2a12:6680::/2934.4B × /64RIPE NCCSC24th Nov 2021