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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,041 blocks match, ordered by prefix.

Allocated but unannounced blocks, 76151 to 76200 of 85041
PrefixAddressesRegistryCountryAllocated
2a11:2c40::/2934.4B × /64RIPE NCCRU20th Sept 2021
2a11:2d40::/2934.4B × /64RIPE NCCNL20th Sept 2021
2a11:2f80::/2934.4B × /64RIPE NCCSC17th Aug 2021
2a11:2fc0::/324.3B × /64RIPE NCCUA21st Sept 2021
2a11:300::/2934.4B × /64RIPE NCCRU16th Feb 2026
2a11:30c0::/2934.4B × /64RIPE NCCSC21st Sept 2021
2a11:3100::/2934.4B × /64RIPE NCCFR29th Jul 2021
2a11:3140::/2934.4B × /64RIPE NCCNL21st Sept 2021
2a11:3200::/2934.4B × /64RIPE NCCSC16th Jul 2021
2a11:3280::/2934.4B × /64RIPE NCCNL17th Aug 2021
2a11:32c0::/2934.4B × /64RIPE NCCSC21st Sept 2021
2a11:3300::/2934.4B × /64RIPE NCCNL29th Jul 2021
2a11:33c0::/2934.4B × /64RIPE NCCCY21st Sept 2021
2a11:3400::/2934.4B × /64RIPE NCCFR8th Jul 2021
2a11:3440::/2934.4B × /64RIPE NCCRU21st Sept 2021
2a11:3480::/2934.4B × /64RIPE NCCSC17th Aug 2021
2a11:3540::/2934.4B × /64RIPE NCCNL22nd Sept 2021
2a11:3600::/2934.4B × /64RIPE NCCPL7th Nov 2025
2a11:3640::/2934.4B × /64RIPE NCCTR18th Feb 2026
2a11:3680::/2934.4B × /64RIPE NCCSC17th Aug 2021
2a11:3700::/2934.4B × /64RIPE NCCUA29th Jul 2021
2a11:3880::/2934.4B × /64RIPE NCCCY17th Aug 2021
2a11:3980::/2934.4B × /64RIPE NCCCY17th Aug 2021
2a11:39c0::/2934.4B × /64RIPE NCCTR23rd Sept 2021
2a11:3a00::/2934.4B × /64RIPE NCCGB7th Nov 2025
2a11:3c0::/2934.4B × /64RIPE NCCPL29th Jun 2021
2a11:3c80::/2934.4B × /64RIPE NCCNL18th Aug 2021
2a11:3dc0::/2934.4B × /64RIPE NCCSC23rd Sept 2021
2a11:3e80::/2934.4B × /64RIPE NCCNL18th Aug 2021
2a11:3ec0::/2934.4B × /64RIPE NCCRU23rd Sept 2021
2a11:3fc0::/2934.4B × /64RIPE NCCRU23rd Sept 2021
2a11:4000::/2934.4B × /64RIPE NCCNL5th Jul 2021
2a11:400::/2934.4B × /64RIPE NCCLT10th May 2021
2a11:40::/2934.4B × /64RIPE NCCAE28th Jun 2021
2a11:40c0::/2934.4B × /64RIPE NCCSC24th Sept 2021
2a11:4180::/2934.4B × /64RIPE NCCSC18th Aug 2021
2a11:4200::/2934.4B × /64RIPE NCCLT19th Jul 2021
2a11:4240::/2934.4B × /64RIPE NCCSC24th Sept 2021
2a11:4280::/2934.4B × /64RIPE NCCUS18th Aug 2021
2a11:42c0::/2934.4B × /64RIPE NCCHR24th Sept 2021
2a11:4380::/2934.4B × /64RIPE NCCUA19th Aug 2021
2a11:43c0::/2934.4B × /64RIPE NCCUA24th Sept 2021
2a11:4400::/2934.4B × /64RIPE NCCJE9th Jul 2021
2a11:4480::/2934.4B × /64RIPE NCCHK19th Aug 2021
2a11:4580::/2934.4B × /64RIPE NCCHK19th Aug 2021
2a11:45c0::/2934.4B × /64RIPE NCCRU24th Sept 2021
2a11:4600::/2934.4B × /64RIPE NCCNL19th Jul 2021
2a11:4680::/324.3B × /64RIPE NCCGB2nd Oct 2025
2a11:4740::/2934.4B × /64RIPE NCCNL24th Sept 2021
2a11:4780::/2934.4B × /64RIPE NCCSC19th Aug 2021