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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Browse by country

Countries with unannounced space registered through RIPE NCC, largest first.

Unannounced blocks registered through RIPE NCC

25,273 blocks match, ordered by prefix.

Allocated but unannounced blocks, 20601 to 20650 of 25273
PrefixAddressesRegistryCountryAllocated
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
2a12:6780::/2934.4B × /64RIPE NCCRU24th Nov 2021
2a12:67c0::/2934.4B × /64RIPE NCCIT3rd Feb 2022
2a12:6840::/2934.4B × /64RIPE NCCDK4th Feb 2022
2a12:6880::/2934.4B × /64RIPE NCCUS30th Jun 2025
2a12:69c0::/2934.4B × /64RIPE NCCHR4th Feb 2022
2a12:6a00::/2934.4B × /64RIPE NCCIT5th Nov 2021
2a12:6a40::/2934.4B × /64RIPE NCCLT4th Feb 2022