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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 54251 to 54300 of 85310
Prefix	Addresses	Registry	Country	Allocated
2401:8540::/32	4.3B × /64	APNIC	CN	17th Jul 2017
2401:8560::/31	8.6B × /64	APNIC	AU	4th Mar 2024
2401:85a0::/32	4.3B × /64	APNIC	BD	4th Mar 2024
2401:85e0::/32	4.3B × /64	APNIC	ID	4th Mar 2024
2401:8600::/32	4.3B × /64	APNIC	CN	13th Apr 2010
2401:860::/32	4.3B × /64	APNIC	ID	8th Jun 2023
2401:86c0::/32	4.3B × /64	APNIC	BD	19th Jul 2017
2401:8720::/32	4.3B × /64	APNIC	CN	7th Mar 2024
2401:8740::/32	4.3B × /64	APNIC	PH	19th Jul 2017
2401:87a0::/32	4.3B × /64	APNIC	IN	11th Mar 2024
2401:87c0::/32	4.3B × /64	APNIC	HK	19th Jul 2017
2401:87e0::/32	4.3B × /64	APNIC	CN	12th Mar 2024
2401:8820::/31	8.6B × /64	APNIC	CN	12th Mar 2024
2401:8840::/32	4.3B × /64	APNIC	CN	20th Jul 2017
2401:8860::/32	4.3B × /64	APNIC	BD	12th Mar 2024
2401:8880::/32	4.3B × /64	APNIC	HK	4th Sept 2014
2401:88a0::/32	4.3B × /64	APNIC	TW	12th Mar 2024
2401:89a0::/32	4.3B × /64	APNIC	HK	14th Mar 2024
2401:89c0::/32	4.3B × /64	APNIC	HK	21st Jul 2017
2401:8a20::/32	4.3B × /64	APNIC	NP	15th Mar 2024
2401:8a60::/32	4.3B × /64	APNIC	IN	15th Mar 2024
2401:8a80::/32	4.3B × /64	APNIC	AU	5th Sept 2014
2401:8b40::/32	4.3B × /64	APNIC	MY	24th Jul 2017
2401:8b60::/32	4.3B × /64	APNIC	MN	20th Mar 2024
2401:8b80::/32	4.3B × /64	APNIC	HK	5th Sept 2014
2401:8ba0::/32	4.3B × /64	APNIC	PH	20th Mar 2024
2401:8c00::/32	4.3B × /64	APNIC	AU	1st Sept 2009
2401:8c01::/32	4.3B × /64	APNIC	AU	26th Sept 2011
2401:8c0::/32	4.3B × /64	APNIC	AU	28th Apr 2017
2401:8d20::/32	4.3B × /64	APNIC	MM	26th Mar 2024
2401:8d40::/32	4.3B × /64	APNIC	HK	25th Jul 2017
2401:8da0::/32	4.3B × /64	APNIC	CN	27th Mar 2024
2401:8de0::/32	4.3B × /64	APNIC	BD	28th Mar 2024
2401:8e60::/32	4.3B × /64	APNIC	VN	28th Mar 2024
2401:8ea0::/32	4.3B × /64	APNIC	IN	28th Mar 2024
2401:8ec0::/32	4.3B × /64	APNIC	AU	26th Jul 2017
2401:8f00::/32	4.3B × /64	APNIC	ID	26th Jul 2011
2401:8f40::/32	4.3B × /64	APNIC	CN	26th Jul 2017
2401:8f60::/32	4.3B × /64	APNIC	VN	31st Mar 2024
2401:8fa0::/32	4.3B × /64	APNIC	MY	1st Apr 2024
2401:8fc0::/32	4.3B × /64	APNIC	CN	27th Jul 2017
2401:8fe0::/32	4.3B × /64	APNIC	AU	2nd Apr 2024
2401:9020::/32	4.3B × /64	APNIC	IN	3rd Apr 2024
2401:9040::/32	4.3B × /64	APNIC	AU	27th Jul 2017
2401:9060::/32	4.3B × /64	APNIC	NP	3rd Apr 2024
2401:9080::/32	4.3B × /64	APNIC	AU	15th Sept 2014
2401:90a0::/32	4.3B × /64	APNIC	CN	3rd Apr 2024
2401:90c0::/32	4.3B × /64	APNIC	MN	27th Jul 2017
2401:90e0::/32	4.3B × /64	APNIC	ID	4th Apr 2024
2401:9100::/32	4.3B × /64	APNIC	MO	26th Jul 2011