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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,310 blocks match, ordered by prefix.

Allocated but unannounced blocks, 54401 to 54450 of 85310
Prefix	Addresses	Registry	Country	Allocated
2401:a600::/32	4.3B × /64	APNIC	IN	17th Apr 2010
2401:a620::/32	4.3B × /64	APNIC	CN	12th Jun 2024
2401:a640::/32	4.3B × /64	APNIC	CN	17th Aug 2017
2401:a680::/32	4.3B × /64	APNIC	HK	8th Oct 2014
2401:a6a0::/32	4.3B × /64	APNIC	IN	13th Jun 2024
2401:a6c0::/32	4.3B × /64	APNIC	HK	17th Aug 2017
2401:a6e0::/32	4.3B × /64	APNIC	CN	14th Jun 2024
2401:a720::/32	4.3B × /64	APNIC	CN	14th Jun 2024
2401:a740::/32	4.3B × /64	APNIC	MM	18th Aug 2017
2401:a780::/32	4.3B × /64	APNIC	GB	8th Oct 2014
2401:a7c0::/32	4.3B × /64	APNIC	IN	18th Aug 2017
2401:a7e0::/32	4.3B × /64	APNIC	AU	17th Jun 2024
2401:a800::/32	4.3B × /64	APNIC	KR	2nd Jun 2008
2401:a820::/32	4.3B × /64	APNIC	NP	17th Jun 2024
2401:a840::/32	4.3B × /64	APNIC	BD	18th Aug 2017
2401:a8c0::/32	4.3B × /64	APNIC	AU	21st Aug 2017
2401:a8e0::/32	4.3B × /64	APNIC	HK	19th Jun 2024
2401:a940::/32	4.3B × /64	APNIC	CN	21st Aug 2017
2401:a960::/32	4.3B × /64	APNIC	MN	21st Jun 2024
2401:a980::/32	4.3B × /64	APNIC	CN	13th Oct 2014
2401:a9a0::/32	4.3B × /64	APNIC	CN	24th Jun 2024
2401:a9c0::/32	4.3B × /64	APNIC	ID	21st Aug 2017
2401:a9e0::/32	4.3B × /64	APNIC	IN	24th Jun 2024
2401:aa00::/32	4.3B × /64	APNIC	CN	20th Apr 2010
2401:aa0::/32	4.3B × /64	APNIC	BD	14th Jun 2023
2401:aa20::/32	4.3B × /64	APNIC	CN	25th Jun 2024
2401:aa40::/32	4.3B × /64	APNIC	CN	21st Aug 2017
2401:aa60::/32	4.3B × /64	APNIC	IN	25th Jun 2024
2401:aa80::/32	4.3B × /64	APNIC	NZ	14th Oct 2014
2401:aac0::/32	4.3B × /64	APNIC	BD	21st Aug 2017
2401:ab40::/32	4.3B × /64	APNIC	PH	22nd Aug 2017
2401:ab60::/32	4.3B × /64	APNIC	CN	27th Jun 2024
2401:ab80::/32	4.3B × /64	APNIC	HK	15th Oct 2014
2401:aba0::/32	4.3B × /64	APNIC	CN	27th Jun 2024
2401:abc0::/32	4.3B × /64	APNIC	IN	23rd Aug 2017
2401:ac0::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:ac40::/32	4.3B × /64	APNIC	SG	23rd Aug 2017
2401:ac60::/32	4.3B × /64	APNIC	IN	28th Jun 2024
2401:ac80::/32	4.3B × /64	APNIC	NZ	17th Oct 2014
2401:acc0::/32	4.3B × /64	APNIC	CN	23rd Aug 2017
2401:ace0::/32	4.3B × /64	APNIC	IN	1st Jul 2024
2401:ad00::/32	4.3B × /64	APNIC	JP	9th Aug 2011
2401:ad20::/32	4.3B × /64	APNIC	IN	1st Jul 2024
2401:ad40::/32	4.3B × /64	APNIC	CN	24th Aug 2017
2401:ad60::/32	4.3B × /64	APNIC	IN	1st Jul 2024
2401:adc0::/32	4.3B × /64	APNIC	CN	24th Aug 2017
2401:ade0::/32	4.3B × /64	APNIC	MY	3rd Jul 2024
2401:ae20::/32	4.3B × /64	APNIC	IN	3rd Jul 2024
2401:ae40::/32	4.3B × /64	APNIC	KR	24th Aug 2017
2401:ae80::/32	4.3B × /64	APNIC	AU	20th Oct 2014