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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

22,592 blocks match, ordered by prefix.

Allocated but unannounced blocks, 17701 to 17750 of 22592
Prefix	Addresses	Registry	Country	Allocated
2402:440::/32	4.3B × /64	APNIC	CN	16th Nov 2017
2402:44a0::/32	4.3B × /64	APNIC	SG	31st Dec 2025
2402:4500::/32	4.3B × /64	APNIC	CN	20th Oct 2011
2402:4540::/32	4.3B × /64	APNIC	CN	28th Dec 2017
2402:4660::/32	4.3B × /64	APNIC	PK	8th Jan 2026
2402:4680::/32	4.3B × /64	APNIC	HK	23rd Apr 2015
2402:46a0::/32	4.3B × /64	APNIC	BD	8th Jan 2026
2402:46e0::/32	4.3B × /64	APNIC	ID	8th Jan 2026
2402:4720::/32	4.3B × /64	APNIC	BD	9th Jan 2026
2402:4740::/32	4.3B × /64	APNIC	KH	3rd Jan 2018
2402:47a0::/32	4.3B × /64	APNIC	HK	13th Jan 2026
2402:47e0::/32	4.3B × /64	APNIC	NZ	13th Jan 2026
2402:480::/32	4.3B × /64	APNIC	ID	5th Feb 2015
2402:4820::/32	4.3B × /64	APNIC	CN	14th Jan 2026
2402:48c0::/32	4.3B × /64	APNIC	BD	5th Jan 2018
2402:4940::/32	4.3B × /64	APNIC	BD	5th Jan 2018
2402:4960::/32	4.3B × /64	APNIC	PK	15th Jan 2026
2402:49e0::/32	4.3B × /64	APNIC	AU	22nd Jan 2026
2402:4a00::/32	4.3B × /64	APNIC	CN	12th May 2010
2402:4a0::/32	4.3B × /64	APNIC	TW	28th Apr 2025
2402:4a20::/32	4.3B × /64	APNIC	SG	22nd Jan 2026
2402:4a40::/32	4.3B × /64	APNIC	CN	5th Jan 2018
2402:4a60::/32	4.3B × /64	APNIC	AU	23rd Jan 2026
2402:4a80::/32	4.3B × /64	APNIC	CN	28th Apr 2015
2402:4aa0::/32	4.3B × /64	APNIC	TH	23rd Jan 2026
2402:4ac0::/32	4.3B × /64	APNIC	CN	5th Jan 2018
2402:4b00::/32	4.3B × /64	APNIC	MY	20th Oct 2011
2402:4b20::/32	4.3B × /64	APNIC	BD	27th Jan 2026
2402:4bc0::/32	4.3B × /64	APNIC	CN	8th Jan 2018
2402:4be0::/32	4.3B × /64	APNIC	CN	2nd Feb 2026
2402:4c00::/32	4.3B × /64	APNIC	IN	14th Oct 2009
2402:4c01::/32	4.3B × /64	APNIC	IN	26th Apr 2012
2402:4c20::/32	4.3B × /64	APNIC	AU	3rd Feb 2026
2402:4c40::/32	4.3B × /64	APNIC	CN	8th Jan 2018
2402:4c80::/32	4.3B × /64	APNIC	AU	30th Apr 2015
2402:4ce0::/32	4.3B × /64	APNIC	IN	6th Feb 2026
2402:4d00::/32	4.3B × /64	APNIC	HK	20th Oct 2011
2402:4d60::/32	4.3B × /64	APNIC	CN	11th Feb 2026
2402:4d80::/32	4.3B × /64	APNIC	CN	4th May 2015
2402:4da0::/32	4.3B × /64	APNIC	BD	11th Feb 2026
2402:4e40::/32	4.3B × /64	APNIC	AF	9th Jan 2018
2402:4ea0::/32	4.3B × /64	APNIC	PK	23rd Feb 2026
2402:4ec0::/32	4.3B × /64	APNIC	CN	10th Jan 2018
2402:4f80::/32	4.3B × /64	APNIC	CN	5th May 2015
2402:4fa0::/32	4.3B × /64	APNIC	IN	2nd Mar 2026
2402:4fe0::/32	4.3B × /64	APNIC	IN	3rd Mar 2026
2402:500::/32	4.3B × /64	APNIC	SG	20th Sept 2011
2402:5020::/32	4.3B × /64	APNIC	MN	3rd Mar 2026
2402:5040::/32	4.3B × /64	APNIC	ID	11th Jan 2018
2402:50a0::/32	4.3B × /64	APNIC	CN	5th Mar 2026