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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

24,875 blocks match, ordered by prefix.

Allocated but unannounced blocks, 16901 to 16950 of 24875
PrefixAddressesRegistryCountryAllocated
2a0b:600::/324.3B × /64RIPE NCCNO6th Sept 2016
2a0b:6040::/324.3B × /64RIPE NCCDE30th Jun 2017
2a0b:6080::/2934.4B × /64RIPE NCCDE16th Jan 2017
2a0b:6100::/2934.4B × /64RIPE NCCFR7th Aug 2025
2a0b:6180::/2934.4B × /64RIPE NCCDE16th Jan 2017
2a0b:61c0::/324.3B × /64RIPE NCCGB30th Jun 2017
2a0b:6280::/2934.4B × /64RIPE NCCCH16th Jan 2017
2a0b:62c0::/2934.4B × /64RIPE NCCSK30th Jun 2017
2a0b:63c0::/2934.4B × /64RIPE NCCES4th Jun 2021
2a0b:6400::/2934.4B × /64RIPE NCCFR22nd Aug 2016
2a0b:6480::/2934.4B × /64RIPE NCCGB16th Jan 2017
2a0b:6500::/2934.4B × /64RIPE NCCDE19th Oct 2016
2a0b:6540::/2934.4B × /64RIPE NCCUS4th Jul 2017
2a0b:6680::/324.3B × /64RIPE NCCGB16th Jan 2017
2a0b:66c0::/324.3B × /64RIPE NCCRU5th Jul 2017
2a0b:6740::/2934.4B × /64RIPE NCCGB21st Mar 2024
2a0b:6780::/2934.4B × /64RIPE NCCTR16th Jan 2017
2a0b:67c0::/2934.4B × /64RIPE NCCIT27th Jan 2026
2a0b:6840::/2934.4B × /64RIPE NCCES5th Jul 2017
2a0b:68c0::/2934.4B × /64RIPE NCCNL5th Jul 2017
2a0b:6a40::/2934.4B × /64RIPE NCCNL6th Jul 2017
2a0b:6a80::/2934.4B × /64RIPE NCCUA16th Jan 2017
2a0b:6ac0::/2934.4B × /64RIPE NCCNO13th Aug 2026
2a0b:6b00::/2934.4B × /64RIPE NCCIR19th Oct 2016
2a0b:6b40::/2934.4B × /64RIPE NCCES6th Jul 2017
2a0b:6d00::/2934.4B × /64RIPE NCCMK8th Oct 2026
2a0b:6d40::/2934.4B × /64RIPE NCCNL10th Jul 2017
2a0b:6dc0::/2934.4B × /64RIPE NCCGB3rd May 2021
2a0b:6ec0::/2934.4B × /64RIPE NCCRU10th Jul 2017
2a0b:6f00::/2934.4B × /64RIPE NCCDE19th Oct 2016
2a0b:6fc0::/2934.4B × /64RIPE NCCCH17th Jan 2020
2a0b:7000::/2934.4B × /64RIPE NCCTR27th Jan 2026
2a0b:700::/2934.4B × /64RIPE NCCIL10th Oct 2016
2a0b:7200::/2934.4B × /64RIPE NCCDE13th Sept 2016
2a0b:7300::/2934.4B × /64RIPE NCCCZ20th Oct 2016
2a0b:73c0::/2934.4B × /64RIPE NCCPS17th Jan 2020
2a0b:7400::/324.3B × /64RIPE NCCBG23rd Aug 2016
2a0b:7440::/324.3B × /64RIPE NCCDE11th Jul 2017
2a0b:7480::/324.3B × /64RIPE NCCGB18th Jan 2017
2a0b:74c0::/324.3B × /64RIPE NCCCY11th Jul 2017
2a0b:7500::/2934.4B × /64RIPE NCCFR20th Oct 2016
2a0b:7580::/2934.4B × /64RIPE NCCTR18th Jan 2017
2a0b:75c0::/2934.4B × /64RIPE NCCDE11th Jul 2017
2a0b:7600::/2934.4B × /64RIPE NCCIL13th Sept 2016
2a0b:7680::/2934.4B × /64RIPE NCCNL18th Jan 2017
2a0b:76c0::/324.3B × /64RIPE NCCCH28th Aug 2025
2a0b:7700::/2934.4B × /64RIPE NCCIT20th Oct 2016
2a0b:7740::/2934.4B × /64RIPE NCCES12th Jul 2017
2a0b:77c0::/2934.4B × /64RIPE NCCPL12th Jul 2017
2a0b:780::/2934.4B × /64RIPE NCCIT24th Jul 2026