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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 57701 to 57750 of 85285
Prefix	Addresses	Registry	Country	Allocated
2407:39c0::/32	4.3B × /64	APNIC	IN	17th Mar 2021
2407:3ac0::/32	4.3B × /64	APNIC	VN	18th Mar 2021
2407:3b00::/32	4.3B × /64	APNIC	PG	18th Jun 2013
2407:3bc0::/32	4.3B × /64	APNIC	HK	19th Mar 2021
2407:3c0::/32	4.3B × /64	APNIC	BD	11th Jan 2021
2407:3c40::/32	4.3B × /64	APNIC	HK	19th Mar 2021
2407:3d00::/32	4.3B × /64	APNIC	TW	19th Jun 2013
2407:3d40::/32	4.3B × /64	APNIC	BD	22nd Mar 2021
2407:3d80::/32	4.3B × /64	APNIC	HK	14th Sept 2016
2407:3f00::/32	4.3B × /64	APNIC	BD	20th Jun 2013
2407:3f40::/32	4.3B × /64	APNIC	CN	23rd Mar 2021
2407:3fc0::/32	4.3B × /64	APNIC	HK	23rd Mar 2021
2407:400::/32	4.3B × /64	APNIC	AU	25th Feb 2010
2407:4040::/32	4.3B × /64	APNIC	ID	23rd Mar 2021
2407:40::/32	4.3B × /64	APNIC	US	7th Jan 2021
2407:4100::/32	4.3B × /64	APNIC	US	21st Jun 2013
2407:4140::/32	4.3B × /64	APNIC	BD	24th Mar 2021
2407:4200::/32	4.3B × /64	APNIC	AU	21st Feb 2011
2407:4240::/32	4.3B × /64	APNIC	IN	25th Mar 2021
2407:4340::/32	4.3B × /64	APNIC	HK	25th Mar 2021
2407:43c0::/32	4.3B × /64	APNIC	CN	26th Mar 2021
2407:4400::/32	4.3B × /64	APNIC	NZ	1st Mar 2010
2407:4440::/32	4.3B × /64	APNIC	CN	26th Mar 2021
2407:4540::/32	4.3B × /64	APNIC	IN	26th Mar 2021
2407:4580::/32	4.3B × /64	APNIC	CN	18th Sept 2016
2407:4640::/32	4.3B × /64	APNIC	NZ	30th Mar 2021
2407:4680::/32	4.3B × /64	APNIC	CN	19th Sept 2016
2407:46c0::/32	4.3B × /64	APNIC	KH	30th Mar 2021
2407:4740::/32	4.3B × /64	APNIC	CN	30th Mar 2021
2407:480::/32	4.3B × /64	APNIC	CN	1st Sept 2016
2407:4880::/32	4.3B × /64	APNIC	CN	19th Sept 2016
2407:49c0::/32	4.3B × /64	APNIC	BD	3rd Apr 2021
2407:4a40::/32	4.3B × /64	APNIC	VN	5th Apr 2021
2407:4a80::/32	4.3B × /64	APNIC	CN	19th Sept 2016
2407:4ac0::/32	4.3B × /64	APNIC	BD	6th Apr 2021
2407:4b80::/32	4.3B × /64	APNIC	CA	19th Sept 2016
2407:4bc0::/32	4.3B × /64	APNIC	IN	6th Apr 2021
2407:4c40::/32	4.3B × /64	APNIC	NZ	7th Apr 2021
2407:4c80::/32	4.3B × /64	APNIC	CN	19th Sept 2016
2407:4d80::/32	4.3B × /64	APNIC	CN	19th Sept 2016
2407:4e80::/32	4.3B × /64	APNIC	CN	19th Sept 2016
2407:4f00::/32	4.3B × /64	APNIC	CN	25th Jun 2013
2407:4f40::/32	4.3B × /64	APNIC	BD	13th Apr 2021
2407:4f80::/32	4.3B × /64	APNIC	IN	20th Sept 2016
2407:5080::/32	4.3B × /64	APNIC	KR	20th Sept 2016
2407:5180::/32	4.3B × /64	APNIC	KR	20th Sept 2016
2407:51c0::/32	4.3B × /64	APNIC	TW	19th Apr 2021
2407:5240::/32	4.3B × /64	APNIC	VN	19th Apr 2021
2407:52c0::/32	4.3B × /64	APNIC	IN	19th Apr 2021
2407:5300::/32	4.3B × /64	APNIC	JP	27th Jun 2013