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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 20851 to 20900 of 25273
PrefixAddressesRegistryCountryAllocated
2a12:d000::/2934.4B × /64RIPE NCCPL29th Oct 2021
2a12:d00::/2934.4B × /64RIPE NCCSC9th Nov 2021
2a12:d040::/2934.4B × /64RIPE NCCBG21st Apr 2022
2a12:d140::/2934.4B × /64RIPE NCCBE22nd Apr 2022
2a12:d180::/2934.4B × /64RIPE NCCSC1st Dec 2021
2a12:d1c0::/2934.4B × /64RIPE NCCAZ22nd Apr 2022
2a12:d240::/2934.4B × /64RIPE NCCGB22nd Apr 2022
2a12:d2c0::/2934.4B × /64RIPE NCCRU22nd Apr 2022
2a12:d380::/2934.4B × /64RIPE NCCHK2nd Dec 2021
2a12:d3c0::/2934.4B × /64RIPE NCCUA9th Feb 2024
2a12:d400::/2934.4B × /64RIPE NCCSC3rd Nov 2021
2a12:d40::/2934.4B × /64RIPE NCCHK15th Dec 2021
2a12:d480::/2934.4B × /64RIPE NCCSC2nd Dec 2021
2a12:d500::/2934.4B × /64RIPE NCCLT16th Nov 2021
2a12:d580::/2934.4B × /64RIPE NCCSC2nd Dec 2021
2a12:d600::/2934.4B × /64RIPE NCCSC9th Nov 2021
2a12:d640::/2934.4B × /64RIPE NCCCZ25th Apr 2022
2a12:d680::/2934.4B × /64RIPE NCCSC2nd Dec 2021
2a12:d6c0::/2934.4B × /64RIPE NCCSC25th Apr 2022
2a12:d700::/2934.4B × /64RIPE NCCSC16th Nov 2021
2a12:d740::/2934.4B × /64RIPE NCCRU25th Apr 2022
2a12:d780::/2934.4B × /64RIPE NCCRU5th Mar 2026
2a12:d7c0::/2934.4B × /64RIPE NCCCH26th Apr 2022
2a12:d80::/2934.4B × /64RIPE NCCGB18th Nov 2021
2a12:d880::/2934.4B × /64RIPE NCCSC2nd Dec 2021
2a12:d9c0::/2934.4B × /64RIPE NCCIR28th Apr 2022
2a12:db40::/2934.4B × /64RIPE NCCKG28th Apr 2022
2a12:dbc0::/324.3B × /64RIPE NCCIL28th Apr 2022
2a12:dcc0::/2934.4B × /64RIPE NCCRU28th Apr 2022
2a12:dd00::/2934.4B × /64RIPE NCCLT17th Nov 2021
2a12:de00::/2934.4B × /64RIPE NCCLT9th Nov 2021
2a12:de80::/2934.4B × /64RIPE NCCNL2nd Dec 2021
2a12:df80::/2934.4B × /64RIPE NCCSC2nd Dec 2021
2a12:e000::/2934.4B × /64RIPE NCCCZ30th Jun 2025
2a12:e080::/2934.4B × /64RIPE NCCNL2nd Dec 2021
2a12:e0c0::/2934.4B × /64RIPE NCCDE2nd May 2022
2a12:e180::/2934.4B × /64RIPE NCCSC2nd Dec 2021
2a12:e1c0::/2934.4B × /64RIPE NCCTR6th Mar 2026
2a12:e200::/2934.4B × /64RIPE NCCSC9th Nov 2021
2a12:e280::/2934.4B × /64RIPE NCCNL2nd Dec 2021
2a12:e2c0::/2934.4B × /64RIPE NCCTR2nd May 2022
2a12:e300::/2934.4B × /64RIPE NCCSC17th Nov 2021
2a12:e380::/2934.4B × /64RIPE NCCSC2nd Dec 2021
2a12:e400::/2934.4B × /64RIPE NCCNL3rd Nov 2021
2a12:e440::/2934.4B × /64RIPE NCCTR2nd May 2022
2a12:e480::/2934.4B × /64RIPE NCCNL2nd Dec 2021
2a12:e600::/2934.4B × /64RIPE NCCNL9th Nov 2021
2a12:e640::/2934.4B × /64RIPE NCCTR3rd May 2022
2a12:e740::/2934.4B × /64RIPE NCCCY3rd May 2022
2a12:e780::/2934.4B × /64RIPE NCCSE3rd Dec 2021