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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

6,735 blocks match, ordered by prefix.

Allocated but unannounced blocks, 4651 to 4700 of 6735
Prefix	Addresses	Registry	Country	Allocated
2402:d740::/32	4.3B × /64	APNIC	CN	7th May 2018
2402:d780::/32	4.3B × /64	APNIC	CN	1st Sept 2015
2402:d880::/32	4.3B × /64	APNIC	CN	2nd Sept 2015
2402:d980::/32	4.3B × /64	APNIC	CN	2nd Sept 2015
2402:da40::/32	4.3B × /64	APNIC	CN	9th May 2018
2402:dcc0::/32	4.3B × /64	APNIC	CN	10th May 2018
2402:de40::/32	4.3B × /64	APNIC	CN	14th May 2018
2402:dec0::/32	4.3B × /64	APNIC	CN	14th May 2018
2402:df40::/32	4.3B × /64	APNIC	CN	14th May 2018
2402:e00::/32	4.3B × /64	APNIC	CN	5th May 2010
2402:e040::/32	4.3B × /64	APNIC	CN	14th May 2018
2402:e0c0::/32	4.3B × /64	APNIC	CN	14th May 2018
2402:e140::/32	4.3B × /64	APNIC	CN	14th May 2018
2402:e2c0::/32	4.3B × /64	APNIC	CN	14th May 2018
2402:e3c0::/32	4.3B × /64	APNIC	CN	14th May 2018
2402:e540::/32	4.3B × /64	APNIC	CN	15th May 2018
2402:e680::/32	4.3B × /64	APNIC	CN	17th Sept 2015
2402:e780::/32	4.3B × /64	APNIC	CN	17th Sept 2015
2402:e980::/32	4.3B × /64	APNIC	CN	18th Sept 2015
2402:eb80::/32	4.3B × /64	APNIC	CN	18th Sept 2015
2402:ec80::/32	4.3B × /64	APNIC	CN	18th Sept 2015
2402:ed80::/32	4.3B × /64	APNIC	CN	18th Sept 2015
2402:ef80::/32	4.3B × /64	APNIC	CN	22nd Sept 2015
2402:f480::/32	4.3B × /64	APNIC	CN	25th Sept 2015
2402:f540::/32	4.3B × /64	APNIC	CN	29th May 2018
2402:f580::/32	4.3B × /64	APNIC	CN	25th Sept 2015
2402:f780::/32	4.3B × /64	APNIC	CN	25th Sept 2015
2402:f980::/32	4.3B × /64	APNIC	CN	29th Sept 2015
2402:f9c0::/32	4.3B × /64	APNIC	CN	31st May 2018
2402:fac0::/32	4.3B × /64	APNIC	CN	31st May 2018
2402:fc0::/32	4.3B × /64	APNIC	CN	24th Nov 2017
2402:fcc0::/32	4.3B × /64	APNIC	CN	1st Jun 2018
2402:ff40::/32	4.3B × /64	APNIC	CN	5th Jun 2018
2402:ffc0::/32	4.3B × /64	APNIC	CN	5th Jun 2018
2403:1180::/32	4.3B × /64	APNIC	CN	13th Oct 2015
2403:1340::/32	4.3B × /64	APNIC	CN	19th Jun 2018
2403:1440::/32	4.3B × /64	APNIC	CN	20th Jun 2018
2403:1580::/32	4.3B × /64	APNIC	CN	15th Oct 2015
2403:16c0::/32	4.3B × /64	APNIC	CN	22nd Jun 2018
2403:17c0::/32	4.3B × /64	APNIC	CN	22nd Jun 2018
2403:1980::/32	4.3B × /64	APNIC	CN	19th Oct 2015
2403:1c80::/32	4.3B × /64	APNIC	CN	20th Oct 2015
2403:1d80::/32	4.3B × /64	APNIC	CN	20th Oct 2015
2403:1dc0::/32	4.3B × /64	APNIC	CN	29th Jun 2018
2403:1e80::/32	4.3B × /64	APNIC	CN	20th Oct 2015
2403:1f80::/32	4.3B × /64	APNIC	CN	20th Oct 2015
2403:2080::/32	4.3B × /64	APNIC	CN	20th Oct 2015
2403:2180::/32	4.3B × /64	APNIC	CN	21st Oct 2015
2403:2240::/32	4.3B × /64	APNIC	CN	4th Jul 2018
2403:2280::/32	4.3B × /64	APNIC	CN	21st Oct 2015