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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

25,296 blocks match, ordered by prefix.

Allocated but unannounced blocks, 17651 to 17700 of 25296
PrefixAddressesRegistryCountryAllocated
2a0c:3a40::/2934.4B × /64RIPE NCCUS4th Apr 2018
2a0c:3b00::/2934.4B × /64RIPE NCCMD9th Nov 2017
2a0c:3c0::/324.3B × /64RIPE NCCDE14th Mar 2018
2a0c:3c40::/324.3B × /64RIPE NCCGB4th Apr 2018
2a0c:3cc0::/2934.4B × /64RIPE NCCIT14th Apr 2026
2a0c:3d40::/324.3B × /64RIPE NCCLT4th Apr 2018
2a0c:3d80::/2934.4B × /64RIPE NCCRU29th Dec 2017
2a0c:3e40::/2934.4B × /64RIPE NCCCY4th Apr 2018
2a0c:3e80::/2934.4B × /64RIPE NCCPL29th Dec 2017
2a0c:3f00::/2934.4B × /64RIPE NCCIT9th Nov 2017
2a0c:3f40::/324.3B × /64RIPE NCCRU5th Apr 2018
2a0c:3fc0::/2934.4B × /64RIPE NCCES5th Apr 2018
2a0c:4000::/324.3B × /64RIPE NCCIR18th Sept 2017
2a0c:400::/2934.4B × /64RIPE NCCDE3rd Oct 2017
2a0c:4040::/2934.4B × /64RIPE NCCIT5th Apr 2018
2a0c:40c0::/2934.4B × /64RIPE NCCCH5th Apr 2018
2a0c:4100::/2934.4B × /64RIPE NCCCH10th Nov 2017
2a0c:41c0::/2934.4B × /64RIPE NCCUS5th Apr 2018
2a0c:4240::/2934.4B × /64RIPE NCCIE5th Apr 2018
2a0c:4280::/324.3B × /64RIPE NCCLT6th Aug 2026
2a0c:42c0::/2934.4B × /64RIPE NCCIT5th Apr 2018
2a0c:43c0::/2934.4B × /64RIPE NCCLT27th Jan 2021
2a0c:4440::/2934.4B × /64RIPE NCCDE1st Apr 2019
2a0c:4540::/2934.4B × /64RIPE NCCZA6th Apr 2018
2a0c:4580::/2934.4B × /64RIPE NCCES2nd Jan 2018
2a0c:45c0::/2934.4B × /64RIPE NCCLU6th Apr 2018
2a0c:4600::/2934.4B × /64RIPE NCCDK17th Oct 2017
2a0c:4640::/2934.4B × /64RIPE NCCES16th Apr 2018
2a0c:46c0::/2934.4B × /64RIPE NCCTR6th Apr 2018
2a0c:4700::/2934.4B × /64RIPE NCCNL10th Nov 2017
2a0c:4740::/2934.4B × /64RIPE NCCNL6th Apr 2018
2a0c:48c0::/2934.4B × /64RIPE NCCIT6th Apr 2018
2a0c:4900::/2934.4B × /64RIPE NCCPL10th Nov 2017
2a0c:4940::/2934.4B × /64RIPE NCCES10th Apr 2018
2a0c:4980::/2934.4B × /64RIPE NCCGB2nd Jan 2018
2a0c:49c0::/2934.4B × /64RIPE NCCGB17th Sept 2025
2a0c:4b00::/2934.4B × /64RIPE NCCGB10th Nov 2017
2a0c:4bc0::/2934.4B × /64RIPE NCCCY10th Apr 2018
2a0c:4c0::/2934.4B × /64RIPE NCCCY14th Mar 2018
2a0c:4c40::/2934.4B × /64RIPE NCCDE10th Apr 2018
2a0c:4c80::/2934.4B × /64RIPE NCCDE3rd Jan 2018
2a0c:4cc0::/324.3B × /64RIPE NCCES10th Apr 2018
2a0c:4e00::/2934.4B × /64RIPE NCCLT27th Jan 2021
2a0c:4e80::/2934.4B × /64RIPE NCCES3rd Jan 2018
2a0c:4ec0::/2934.4B × /64RIPE NCCGB10th Apr 2018
2a0c:4f00::/2934.4B × /64RIPE NCCES10th Nov 2017
2a0c:4f80::/2934.4B × /64RIPE NCCIE3rd Jan 2018
2a0c:5000::/3017.2B × /64RIPE NCCFR21st Sept 2017
2a0c:5040::/2934.4B × /64RIPE NCCFR7th Aug 2026
2a0c:5080::/2934.4B × /64RIPE NCCDE3rd Jan 2018