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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,075 blocks match, ordered by prefix.

Allocated but unannounced blocks, 73751 to 73800 of 85075
PrefixAddressesRegistryCountryAllocated
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
2a0c:50c0::/2934.4B × /64RIPE NCCIT10th Apr 2018
2a0c:5180::/2934.4B × /64RIPE NCCQA3rd Jan 2018
2a0c:51c0::/2934.4B × /64RIPE NCCPL11th Apr 2018
2a0c:5200::/2934.4B × /64RIPE NCCUS18th Oct 2017
2a0c:5280::/2934.4B × /64RIPE NCCIT3rd Jan 2018
2a0c:5300::/2934.4B × /64RIPE NCCRU10th Nov 2017
2a0c:5340::/2934.4B × /64RIPE NCCFR11th Apr 2018
2a0c:5380::/2934.4B × /64RIPE NCCBE3rd Jan 2018
2a0c:53c0::/2934.4B × /64RIPE NCCAT11th Apr 2018
2a0c:5400::/2934.4B × /64RIPE NCCGB31st Aug 2020