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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,424 blocks match, ordered by prefix.

Allocated but unannounced blocks, 57051 to 57100 of 84424
Prefix	Addresses	Registry	Country	Allocated
2406:afc0::/32	4.3B × /64	APNIC	BD	3rd Nov 2020
2406:b000::/32	4.3B × /64	APNIC	KR	20th Mar 2008
2406:b080::/32	4.3B × /64	APNIC	CN	15th Aug 2016
2406:b0c0::/32	4.3B × /64	APNIC	ID	5th Nov 2020
2406:b100::/32	4.3B × /64	APNIC	KH	10th Apr 2013
2406:b140::/32	4.3B × /64	APNIC	ID	5th Nov 2020
2406:b1c0::/32	4.3B × /64	APNIC	IN	5th Nov 2020
2406:b280::/32	4.3B × /64	APNIC	PK	16th Aug 2016
2406:b300::/32	4.3B × /64	APNIC	AU	10th Apr 2013
2406:b380::/32	4.3B × /64	APNIC	MM	16th Aug 2016
2406:b4c0::/32	4.3B × /64	APNIC	TW	6th Nov 2020
2406:b500::/32	4.3B × /64	APNIC	IN	11th Apr 2013
2406:b600::/32	4.3B × /64	APNIC	IN	3rd Feb 2011
2406:b740::/32	4.3B × /64	APNIC	ID	6th Nov 2020
2406:b780::/32	4.3B × /64	APNIC	US	17th Aug 2016
2406:b880::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:b980::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:b9c0::/32	4.3B × /64	APNIC	AU	10th Nov 2020
2406:ba00::/32	4.3B × /64	APNIC	AU	4th Feb 2011
2406:ba40::/32	4.3B × /64	APNIC	AU	10th Nov 2020
2406:ba80::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:bac0::/32	4.3B × /64	APNIC	AU	10th Nov 2020
2406:bb80::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:bbc0::/32	4.3B × /64	APNIC	NZ	12th Nov 2020
2406:bc00::/32	4.3B × /64	APNIC	AU	23rd Feb 2010
2406:bc0::/32	4.3B × /64	APNIC	ID	27th Apr 2020
2406:bc40::/32	4.3B × /64	APNIC	IN	12th Nov 2020
2406:bc80::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:bcc0::/32	4.3B × /64	APNIC	HK	12th Nov 2020
2406:bd40::/32	4.3B × /64	APNIC	CN	13th Nov 2020
2406:bd80::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:bdc0::/32	4.3B × /64	APNIC	CN	13th Nov 2020
2406:be00::/32	4.3B × /64	APNIC	AU	4th Feb 2011
2406:be80::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:bf80::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:c000::/32	4.3B × /64	APNIC	AU	18th Apr 2007
2406:c00::/32	4.3B × /64	APNIC	LK	12th Feb 2010
2406:c080::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:c0::/32	4.3B × /64	APNIC	CN	15th Apr 2020
2406:c100::/32	4.3B × /64	APNIC	NZ	16th Apr 2013
2406:c180::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:c1c0::/32	4.3B × /64	APNIC	ID	18th Nov 2020
2406:c240::/32	4.3B × /64	APNIC	ID	18th Nov 2020
2406:c280::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:c300::/32	4.3B × /64	APNIC	SG	17th Apr 2013
2406:c340::/32	4.3B × /64	APNIC	CN	18th Nov 2020
2406:c400::/32	4.3B × /64	APNIC	AU	23rd Feb 2010
2406:c480::/32	4.3B × /64	APNIC	CN	17th Aug 2016
2406:c4c0::/32	4.3B × /64	APNIC	ID	19th Nov 2020
2406:c540::/32	4.3B × /64	APNIC	IN	20th Nov 2020