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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 17651 to 17700 of 22592
Prefix	Addresses	Registry	Country	Allocated
2402:3500::/32	4.3B × /64	APNIC	NZ	12th Oct 2011
2402:3520::/32	4.3B × /64	APNIC	ID	30th Oct 2025
2402:3560::/32	4.3B × /64	APNIC	TW	30th Oct 2025
2402:3580::/32	4.3B × /64	APNIC	NZ	2nd Apr 2015
2402:35c0::/32	4.3B × /64	APNIC	ID	15th Dec 2017
2402:3600::/32	4.3B × /64	APNIC	AU	24th Sept 2010
2402:3620::/32	4.3B × /64	APNIC	BD	1st Nov 2025
2402:3680::/32	4.3B × /64	APNIC	AU	2nd Apr 2015
2402:36c0::/32	4.3B × /64	APNIC	MY	15th Dec 2017
2402:3740::/32	4.3B × /64	APNIC	MY	15th Dec 2017
2402:3860::/32	4.3B × /64	APNIC	PK	10th Nov 2025
2402:38a0::/32	4.3B × /64	APNIC	MY	12th Nov 2025
2402:3900::/32	4.3B × /64	APNIC	AU	17th Oct 2011
2402:3920::/32	4.3B × /64	APNIC	IN	18th Nov 2025
2402:3940::/32	4.3B × /64	APNIC	BD	18th Dec 2017
2402:3980::/32	4.3B × /64	APNIC	AU	3rd Apr 2015
2402:39c0::/32	4.3B × /64	APNIC	CN	18th Dec 2017
2402:3a00::/32	4.3B × /64	APNIC	AU	24th Sept 2010
2402:3a20::/32	4.3B × /64	APNIC	KH	19th Nov 2025
2402:3a40::/32	4.3B × /64	APNIC	CN	18th Dec 2017
2402:3a60::/32	4.3B × /64	APNIC	MY	19th Nov 2025
2402:3aa0::/32	4.3B × /64	APNIC	IN	25th Nov 2025
2402:3ac0::/32	4.3B × /64	APNIC	CN	18th Dec 2017
2402:3b40::/32	4.3B × /64	APNIC	HK	18th Dec 2017
2402:3be0::/32	4.3B × /64	APNIC	PK	1st Dec 2025
2402:3c00::/32	4.3B × /64	APNIC	CN	13th Oct 2009
2402:3c20::/32	4.3B × /64	APNIC	PK	3rd Dec 2025
2402:3c60::/32	4.3B × /64	APNIC	JP	3rd Dec 2025
2402:3c80::/32	4.3B × /64	APNIC	AU	10th Apr 2015
2402:3d60::/32	4.3B × /64	APNIC	PK	5th Dec 2025
2402:3d80::/32	4.3B × /64	APNIC	ID	10th Apr 2015
2402:3da0::/32	4.3B × /64	APNIC	MY	5th Dec 2025
2402:3de0::/32	4.3B × /64	APNIC	CN	8th Dec 2025
2402:3e00::/32	4.3B × /64	APNIC	CN	12th May 2010
2402:3e20::/32	4.3B × /64	APNIC	BD	10th Dec 2025
2402:3e60::/32	4.3B × /64	APNIC	AU	11th Dec 2025
2402:3ec0::/32	4.3B × /64	APNIC	CN	20th Dec 2017
2402:3fa0::/32	4.3B × /64	APNIC	PH	16th Dec 2025
2402:4060::/32	4.3B × /64	APNIC	CN	17th Dec 2025
2402:40a0::/32	4.3B × /64	APNIC	JP	17th Dec 2025
2402:40e0::/32	4.3B × /64	APNIC	PK	17th Dec 2025
2402:4140::/32	4.3B × /64	APNIC	CN	22nd Dec 2017
2402:420::/32	4.3B × /64	APNIC	BD	24th Apr 2025
2402:42a0::/32	4.3B × /64	APNIC	BD	22nd Dec 2025
2402:42c0::/32	4.3B × /64	APNIC	CN	25th Dec 2017
2402:42e0::/32	4.3B × /64	APNIC	IN	24th Dec 2025
2402:4340::/32	4.3B × /64	APNIC	CN	26th Dec 2017
2402:4360::/32	4.3B × /64	APNIC	SG	29th Dec 2025
2402:4380::/32	4.3B × /64	APNIC	AU	15th Apr 2015
2402:43c0::/32	4.3B × /64	APNIC	CN	26th Dec 2017