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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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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, 4701 to 4750 of 6735
Prefix	Addresses	Registry	Country	Allocated
2403:2380::/32	4.3B × /64	APNIC	CN	21st Oct 2015
2403:2440::/32	4.3B × /64	APNIC	CN	4th Jul 2018
2403:24c0::/32	4.3B × /64	APNIC	CN	4th Jul 2018
2403:2580::/32	4.3B × /64	APNIC	CN	21st Oct 2015
2403:25c0::/32	4.3B × /64	APNIC	CN	5th Jul 2018
2403:2680::/32	4.3B × /64	APNIC	CN	21st Oct 2015
2403:2740::/32	4.3B × /64	APNIC	CN	6th Jul 2018
2403:2780::/32	4.3B × /64	APNIC	CN	21st Oct 2015
2403:28c0::/32	4.3B × /64	APNIC	CN	6th Jul 2018
2403:2940::/32	4.3B × /64	APNIC	CN	6th Jul 2018
2403:2a00::/32	4.3B × /64	APNIC	CN	2nd Jul 2010
2403:2a40::/32	4.3B × /64	APNIC	CN	6th Jul 2018
2403:2ac0::/32	4.3B × /64	APNIC	CN	6th Jul 2018
2403:2bc0::/32	4.3B × /64	APNIC	CN	8th Jul 2018
2403:2cc0::/32	4.3B × /64	APNIC	CN	9th Jul 2018
2403:2f40::/32	4.3B × /64	APNIC	CN	11th Jul 2018
2403:2fc0::/32	4.3B × /64	APNIC	CN	11th Jul 2018
2403:3040::/32	4.3B × /64	APNIC	CN	11th Jul 2018
2403:30c0::/32	4.3B × /64	APNIC	CN	11th Jul 2018
2403:3280::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:32c0::/32	4.3B × /64	APNIC	CN	12th Jul 2018
2403:3380::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:3480::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:3580::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:3640::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3680::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:36c0::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3740::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3780::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:37c0::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3840::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3880::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:38c0::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3940::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3980::/32	4.3B × /64	APNIC	CN	29th Oct 2015
2403:39c0::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3b80::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:3c40::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3c80::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:3cc0::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3d40::/32	4.3B × /64	APNIC	CN	17th Jul 2018
2403:3d80::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:3dc0::/32	4.3B × /64	APNIC	CN	17th Jul 2018
2403:3e80::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:3ec0::/32	4.3B × /64	APNIC	CN	17th Jul 2018
2403:3f80::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:4080::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:4180::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:4380::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:4580::/32	4.3B × /64	APNIC	CN	2nd Nov 2015