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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,285 blocks match, ordered by prefix.

Allocated but unannounced blocks, 56051 to 56100 of 85285
Prefix	Addresses	Registry	Country	Allocated
2404:1a00::/32	4.3B × /64	APNIC	TH	25th Aug 2010
2404:1a40::/32	4.3B × /64	APNIC	HK	14th Dec 2018
2404:1ac0::/32	4.3B × /64	APNIC	US	14th Dec 2018
2404:1cc0::/32	4.3B × /64	APNIC	CN	17th Dec 2018
2404:1d00::/32	4.3B × /64	APNIC	AU	5th Jun 2012
2404:1d40::/32	4.3B × /64	APNIC	BD	17th Dec 2018
2404:1e00::/32	4.3B × /64	APNIC	NZ	25th Aug 2010
2404:1e80::/32	4.3B × /64	APNIC	CN	8th Jan 2016
2404:1f40::/32	4.3B × /64	APNIC	CN	19th Dec 2018
2404:21c0::/32	4.3B × /64	APNIC	CN	20th Dec 2018
2404:22c0::/32	4.3B × /64	APNIC	TW	21st Dec 2018
2404:2300::/32	4.3B × /64	APNIC	KR	5th Jun 2012
2404:2340::/32	4.3B × /64	APNIC	IN	21st Dec 2018
2404:23c0::/32	4.3B × /64	APNIC	MM	21st Dec 2018
2404:240::/32	4.3B × /64	APNIC	CN	26th Nov 2018
2404:25c0::/32	4.3B × /64	APNIC	BD	24th Dec 2018
2404:2640::/32	4.3B × /64	APNIC	BD	24th Dec 2018
2404:26c0::/32	4.3B × /64	APNIC	VN	24th Dec 2018
2404:2700::/32	4.3B × /64	APNIC	MN	13th Jun 2012
2404:2780::/32	4.3B × /64	APNIC	AU	22nd Jan 2016
2404:280::/32	4.3B × /64	APNIC	CN	16th Dec 2015
2404:2840::/32	4.3B × /64	APNIC	TW	26th Dec 2018
2404:28c0::/32	4.3B × /64	APNIC	TW	26th Dec 2018
2404:2980::/32	4.3B × /64	APNIC	BD	24th Jan 2016
2404:2a80::/32	4.3B × /64	APNIC	HK	25th Jan 2016
2404:2ac0::/32	4.3B × /64	APNIC	AU	27th Dec 2018
2404:2b00::/32	4.3B × /64	APNIC	AU	14th Jun 2012
2404:2b40::/32	4.3B × /64	APNIC	HK	27th Dec 2018
2404:2c0::/32	4.3B × /64	APNIC	BD	26th Nov 2018
2404:2c40::/32	4.3B × /64	APNIC	KH	28th Dec 2018
2404:2c80::/32	4.3B × /64	APNIC	ID	25th Jan 2016
2404:2d80::/32	4.3B × /64	APNIC	BD	27th Jan 2016
2404:2e80::/32	4.3B × /64	APNIC	NP	27th Jan 2016
2404:30c0::/32	4.3B × /64	APNIC	CN	2nd Jan 2019
2404:3140::/32	4.3B × /64	APNIC	CN	2nd Jan 2019
2404:31c0::/32	4.3B × /64	APNIC	CN	2nd Jan 2019
2404:3240::/32	4.3B × /64	APNIC	CN	2nd Jan 2019
2404:32c0::/32	4.3B × /64	APNIC	CN	2nd Jan 2019
2404:3300::/32	4.3B × /64	APNIC	CN	19th Jun 2012
2404:3340::/32	4.3B × /64	APNIC	CN	2nd Jan 2019
2404:340::/32	4.3B × /64	APNIC	ID	27th Nov 2018
2404:3480::/32	4.3B × /64	APNIC	CN	29th Jan 2016
2404:3580::/32	4.3B × /64	APNIC	ID	29th Jan 2016
2404:35c0::/32	4.3B × /64	APNIC	CN	4th Jan 2019
2404:3640::/32	4.3B × /64	APNIC	CN	4th Jan 2019
2404:3680::/32	4.3B × /64	APNIC	ID	29th Jan 2016
2404:36c0::/32	4.3B × /64	APNIC	CN	4th Jan 2019
2404:3740::/32	4.3B × /64	APNIC	CN	4th Jan 2019
2404:37c0::/32	4.3B × /64	APNIC	CN	4th Jan 2019
2404:380::/32	4.3B × /64	APNIC	GU	17th Dec 2015