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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through APNIC, largest first.

Unannounced blocks registered through APNIC

22,575 blocks match, ordered by prefix.

Allocated but unannounced blocks, 18101 to 18150 of 22575
Prefix	Addresses	Registry	Country	Allocated
2402:c580::/32	4.3B × /64	APNIC	US	18th Aug 2015
2402:c5c0::/32	4.3B × /64	APNIC	CN	18th Apr 2018
2402:c640::/32	4.3B × /64	APNIC	AU	19th Apr 2018
2402:c700::/32	4.3B × /64	APNIC	VN	29th Dec 2011
2402:c740::/32	4.3B × /64	APNIC	ID	19th Apr 2018
2402:c780::/32	4.3B × /64	APNIC	MY	20th Aug 2015
2402:c80::/32	4.3B × /64	APNIC	HK	13th Feb 2015
2402:c880::/32	4.3B × /64	APNIC	HK	20th Aug 2015
2402:c8c0::/32	4.3B × /64	APNIC	BD	20th Apr 2018
2402:c900::/32	4.3B × /64	APNIC	MN	30th Dec 2011
2402:c980::/32	4.3B × /64	APNIC	TH	20th Aug 2015
2402:c9c0::/32	4.3B × /64	APNIC	CN	23rd Apr 2018
2402:ca00::/32	4.3B × /64	APNIC	AU	8th Jun 2010
2402:ca0::/32	4.3B × /64	APNIC	TW	23rd May 2025
2402:ca40::/32	4.3B × /64	APNIC	BD	23rd Apr 2018
2402:cb00::/32	4.3B × /64	APNIC	LK	3rd Jan 2012
2402:cb01::/32	4.3B × /64	APNIC	LK	25th May 2017
2402:cc00::/32	4.3B × /64	APNIC	NZ	10th Nov 2009
2402:cc40::/32	4.3B × /64	APNIC	CN	25th Apr 2018
2402:cd40::/32	4.3B × /64	APNIC	KH	26th Apr 2018
2402:cdc0::/32	4.3B × /64	APNIC	BD	26th Apr 2018
2402:ce0::/32	4.3B × /64	APNIC	PH	23rd May 2025
2402:ce40::/32	4.3B × /64	APNIC	US	26th Apr 2018
2402:cf00::/32	4.3B × /64	APNIC	CN	4th Jan 2012
2402:cf40::/32	4.3B × /64	APNIC	CN	27th Apr 2018
2402:d00::/32	4.3B × /64	APNIC	NO	26th Sept 2011
2402:d040::/32	4.3B × /64	APNIC	CN	28th Apr 2018
2402:d080::/32	4.3B × /64	APNIC	TL	26th Aug 2015
2402:d100::/32	4.3B × /64	APNIC	AU	5th Jan 2012
2402:d140::/32	4.3B × /64	APNIC	CN	1st May 2018
2402:d180::/32	4.3B × /64	APNIC	AU	26th Aug 2015
2402:d200::/32	4.3B × /64	APNIC	JP	15th Jun 2010
2402:d300::/32	4.3B × /64	APNIC	CN	5th Jan 2012
2402:d380::/32	4.3B × /64	APNIC	CN	27th Aug 2015
2402:d3c0::/32	4.3B × /64	APNIC	BD	3rd May 2018
2402:d40::/32	4.3B × /64	APNIC	AU	24th Nov 2017
2402:d5c0::/32	4.3B × /64	APNIC	CN	4th May 2018
2402:d640::/32	4.3B × /64	APNIC	IN	4th May 2018
2402:d680::/32	4.3B × /64	APNIC	ID	31st Aug 2015
2402:d6c0::/32	4.3B × /64	APNIC	CN	7th May 2018
2402:d740::/32	4.3B × /64	APNIC	CN	7th May 2018
2402:d780::/32	4.3B × /64	APNIC	CN	1st Sept 2015
2402:d800::/32	4.3B × /64	APNIC	AU	31st Jul 2008
2402:d80::/32	4.3B × /64	APNIC	SG	13th Feb 2015
2402:d880::/32	4.3B × /64	APNIC	CN	2nd Sept 2015
2402:d8c0::/32	4.3B × /64	APNIC	IN	8th May 2018
2402:d900::/32	4.3B × /64	APNIC	AU	9th Jan 2012
2402:d980::/32	4.3B × /64	APNIC	CN	2nd Sept 2015
2402:da00::/32	4.3B × /64	APNIC	ID	16th Jun 2010
2402:da40::/32	4.3B × /64	APNIC	CN	9th May 2018