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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 53051 to 53100 of 85346
PrefixAddressesRegistryCountryAllocated
2400:1e20::/324.3B × /64APNICTW9th Nov 2021
2400:1e40::/324.3B × /64APNICCN15th Nov 2016
2400:1ea0::/324.3B × /64APNICPH9th Nov 2021
2400:1ec0::/324.3B × /64APNICCN15th Nov 2016
2400:1ee0::/324.3B × /64APNICAU10th Nov 2021
2400:1f20::/324.3B × /64APNICAU10th Nov 2021
2400:1f40::/324.3B × /64APNICCN15th Nov 2016
2400:1f60::/324.3B × /64APNICAU10th Nov 2021
2400:1fa0::/324.3B × /64APNICAU10th Nov 2021
2400:1fc0::/324.3B × /64APNICCN15th Nov 2016
2400:1fe0::/324.3B × /64APNICBD10th Nov 2021
2400:3020::/324.3B × /64APNICVN10th Nov 2021
2400:3040::/324.3B × /64APNICCN15th Nov 2016
2400:3060::/324.3B × /64APNICVN10th Nov 2021
2400:3080::/324.3B × /64APNICAF10th Oct 2013
2400:30a0::/324.3B × /64APNICTW11th Nov 2021
2400:3100::/324.3B × /64APNICVU5th Apr 2011
2400:3140::/324.3B × /64APNICCN15th Nov 2016
2400:3160::/324.3B × /64APNICCN12th Nov 2021
2400:3180::/324.3B × /64APNICIN11th Oct 2013
2400:31a0::/324.3B × /64APNICBD15th Nov 2021
2400:31c0::/324.3B × /64APNICCN15th Nov 2016
2400:31e0::/324.3B × /64APNICVN15th Nov 2021
2400:32c0::/324.3B × /64APNICCN16th Nov 2016
2400:3300::/324.3B × /64APNICKR5th Apr 2011
2400:3340::/324.3B × /64APNICCN16th Nov 2016
2400:3380::/324.3B × /64APNICIN17th Oct 2013
2400:33a0::/324.3B × /64APNICPH16th Nov 2021
2400:33c0::/324.3B × /64APNICCN16th Nov 2016
2400:33e0::/324.3B × /64APNICGB17th Nov 2021
2400:3420::/324.3B × /64APNICIN18th Nov 2021
2400:3440::/324.3B × /64APNICCN16th Nov 2016
2400:3480::/324.3B × /64APNICTH18th Oct 2013
2400:34a0::/324.3B × /64APNICIN18th Nov 2021
2400:34c0::/324.3B × /64APNICCN16th Nov 2016
2400:3500::/324.3B × /64APNICTV5th Apr 2011
2400:3520::/324.3B × /64APNICHK22nd Nov 2021
2400:3540::/324.3B × /64APNICCN16th Nov 2016
2400:3560::/324.3B × /64APNICIN22nd Nov 2021
2400:3580::/324.3B × /64APNICID18th Oct 2013
2400:35a0::/324.3B × /64APNICIN22nd Nov 2021
2400:35c0::/324.3B × /64APNICCN16th Nov 2016
2400:3600::/324.3B × /64APNICCN12th Mar 2010
2400:3640::/324.3B × /64APNICCN16th Nov 2016
2400:3660::/324.3B × /64APNICCN23rd Nov 2021
2400:36c0::/324.3B × /64APNICCN16th Nov 2016
2400:36e0::/324.3B × /64APNICIN23rd Nov 2021
2400:3720::/324.3B × /64APNICIN23rd Nov 2021
2400:37c0::/324.3B × /64APNICAU17th Nov 2016
2400:3880::/324.3B × /64APNICAU21st Oct 2013