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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,310 blocks match, ordered by prefix.

Allocated but unannounced blocks, 55151 to 55200 of 85310
Prefix	Addresses	Registry	Country	Allocated
2402:6b80::/32	4.3B × /64	APNIC	AU	29th May 2015
2402:6ba0::/32	4.3B × /64	APNIC	JP	3rd Aug 2026
2402:6bc0::/32	4.3B × /64	APNIC	CN	1st Feb 2018
2402:6c60::/32	4.3B × /64	APNIC	VN	5th Aug 2026
2402:6ca0::/32	4.3B × /64	APNIC	PH	6th Aug 2026
2402:6ce0::/32	4.3B × /64	APNIC	TW	10th Aug 2026
2402:6d20::/32	4.3B × /64	APNIC	TW	10th Aug 2026
2402:6d60::/32	4.3B × /64	APNIC	AU	11th Aug 2026
2402:6d80::/32	4.3B × /64	APNIC	PH	1st Jun 2015
2402:6da0::/32	4.3B × /64	APNIC	ID	11th Aug 2026
2402:6de0::/32	4.3B × /64	APNIC	AU	11th Aug 2026
2402:6e00::/32	4.3B × /64	APNIC	CN	17th May 2010
2402:6e0::/32	4.3B × /64	APNIC	SG	2nd May 2025
2402:6e20::/32	4.3B × /64	APNIC	MM	11th Aug 2026
2402:6e40::/32	4.3B × /64	APNIC	HK	2nd Feb 2018
2402:6e60::/32	4.3B × /64	APNIC	HK	12th Aug 2026
2402:6ea0::/32	4.3B × /64	APNIC	AU	13th Aug 2026
2402:6ee0::/32	4.3B × /64	APNIC	BD	14th Aug 2026
2402:6f00::/32	4.3B × /64	APNIC	HK	2nd Nov 2011
2402:6f20::/32	4.3B × /64	APNIC	AU	17th Aug 2026
2402:6f60::/32	4.3B × /64	APNIC	IN	17th Aug 2026
2402:6fa0::/32	4.3B × /64	APNIC	IN	17th Aug 2026
2402:6fe0::/32	4.3B × /64	APNIC	HK	18th Aug 2026
2402:7000::/32	4.3B × /64	APNIC	KR	2nd Apr 2008
2402:7020::/32	4.3B × /64	APNIC	PH	18th Aug 2026
2402:7060::/32	4.3B × /64	APNIC	CN	19th Aug 2026
2402:7080::/32	4.3B × /64	APNIC	CN	4th Jun 2015
2402:70a0::/29	34.4B × /64	APNIC	CN	19th Aug 2026
2402:70c0::/32	4.3B × /64	APNIC	CN	5th Feb 2018
2402:70e0::/32	4.3B × /64	APNIC	BT	19th Aug 2026
2402:7120::/32	4.3B × /64	APNIC	NP	24th Aug 2026
2402:7140::/32	4.3B × /64	APNIC	CN	6th Feb 2018
2402:7160::/32	4.3B × /64	APNIC	TW	24th Aug 2026
2402:71a0::/32	4.3B × /64	APNIC	MM	24th Aug 2026
2402:71c0::/32	4.3B × /64	APNIC	CN	6th Feb 2018
2402:71e0::/32	4.3B × /64	APNIC	TW	25th Aug 2026
2402:7200::/32	4.3B × /64	APNIC	TK	18th May 2010
2402:7220::/32	4.3B × /64	APNIC	PK	25th Aug 2026
2402:7240::/32	4.3B × /64	APNIC	CN	7th Feb 2018
2402:7260::/32	4.3B × /64	APNIC	PK	28th Aug 2026
2402:72a0::/32	4.3B × /64	APNIC	CN	28th Aug 2026
2402:72c0::/32	4.3B × /64	APNIC	CN	7th Feb 2018
2402:72e0::/32	4.3B × /64	APNIC	NZ	31st Aug 2026
2402:7320::/32	4.3B × /64	APNIC	PG	1st Sept 2026
2402:7360::/32	4.3B × /64	APNIC	PH	2nd Sept 2026
2402:73a0::/32	4.3B × /64	APNIC	ID	3rd Sept 2026
2402:73e0::/32	4.3B × /64	APNIC	CN	3rd Sept 2026
2402:740::/32	4.3B × /64	APNIC	IN	20th Nov 2017
2402:7420::/32	4.3B × /64	APNIC	PH	3rd Sept 2026
2402:7440::/32	4.3B × /64	APNIC	JP	7th Feb 2018