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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

22,580 blocks match, ordered by prefix.

Allocated but unannounced blocks, 17551 to 17600 of 22580
Prefix	Addresses	Registry	Country	Allocated
2402:1600::/32	4.3B × /64	APNIC	CN	5th May 2010
2402:1640::/32	4.3B × /64	APNIC	IN	28th Nov 2017
2402:1660::/32	4.3B × /64	APNIC	IN	9th Jul 2025
2402:16c0::/32	4.3B × /64	APNIC	HK	28th Nov 2017
2402:16e0::/32	4.3B × /64	APNIC	CN	10th Jul 2025
2402:1700::/32	4.3B × /64	APNIC	AU	30th Sept 2011
2402:1720::/32	4.3B × /64	APNIC	IN	10th Jul 2025
2402:1740::/32	4.3B × /64	APNIC	CN	29th Nov 2017
2402:17a0::/32	4.3B × /64	APNIC	IN	11th Jul 2025
2402:17c0::/32	4.3B × /64	APNIC	AU	29th Nov 2017
2402:17e0::/32	4.3B × /64	APNIC	IN	14th Jul 2025
2402:1820::/32	4.3B × /64	APNIC	IN	15th Jul 2025
2402:1860::/32	4.3B × /64	APNIC	IN	15th Jul 2025
2402:18c0::/32	4.3B × /64	APNIC	MY	29th Nov 2017
2402:19a0::/32	4.3B × /64	APNIC	BD	18th Jul 2025
2402:19c0::/32	4.3B × /64	APNIC	CN	29th Nov 2017
2402:1a00::/32	4.3B × /64	APNIC	KR	5th May 2010
2402:1ac0::/32	4.3B × /64	APNIC	HK	29th Nov 2017
2402:1ba0::/32	4.3B × /64	APNIC	IN	22nd Jul 2025
2402:1bc0::/32	4.3B × /64	APNIC	BD	30th Nov 2017
2402:1be0::/32	4.3B × /64	APNIC	CN	22nd Jul 2025
2402:1c20::/32	4.3B × /64	APNIC	CN	23rd Jul 2025
2402:1c40::/32	4.3B × /64	APNIC	PK	30th Nov 2017
2402:1ce0::/32	4.3B × /64	APNIC	AU	28th Jul 2025
2402:1d00::/32	4.3B × /64	APNIC	JP	3rd Oct 2011
2402:1d80::/32	4.3B × /64	APNIC	ID	9th Mar 2015
2402:1de0::/32	4.3B × /64	APNIC	KI	30th Jul 2025
2402:1e40::/32	4.3B × /64	APNIC	AU	1st Dec 2017
2402:1e80::/32	4.3B × /64	APNIC	JP	9th Mar 2015
2402:1ee0::/32	4.3B × /64	APNIC	HK	31st Jul 2025
2402:1f80::/32	4.3B × /64	APNIC	CN	11th Mar 2015
2402:1fa0::/32	4.3B × /64	APNIC	HK	4th Aug 2025
2402:1fc0::/32	4.3B × /64	APNIC	HK	1st Dec 2017
2402:2020::/32	4.3B × /64	APNIC	IN	5th Aug 2025
2402:2040::/32	4.3B × /64	APNIC	HK	1st Dec 2017
2402:2060::/32	4.3B × /64	APNIC	IN	7th Aug 2025
2402:20c0::/32	4.3B × /64	APNIC	NL	1st Dec 2017
2402:2140::/32	4.3B × /64	APNIC	AU	1st Dec 2017
2402:2160::/32	4.3B × /64	APNIC	AU	8th Aug 2025
2402:21e0::/32	4.3B × /64	APNIC	IN	11th Aug 2025
2402:2220::/32	4.3B × /64	APNIC	VN	11th Aug 2025
2402:2280::/32	4.3B × /64	APNIC	CN	12th Mar 2015
2402:22e0::/32	4.3B × /64	APNIC	TW	12th Aug 2025
2402:2320::/32	4.3B × /64	APNIC	AE	14th Aug 2025
2402:2440::/32	4.3B × /64	APNIC	CN	4th Dec 2017
2402:24a0::/32	4.3B × /64	APNIC	IN	19th Aug 2025
2402:24c0::/32	4.3B × /64	APNIC	CN	4th Dec 2017
2402:24e0::/32	4.3B × /64	APNIC	BD	20th Aug 2025
2402:2540::/32	4.3B × /64	APNIC	CN	4th Dec 2017
2402:2580::/32	4.3B × /64	APNIC	TW	17th Mar 2015