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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Browse by registry

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Countries with the most unannounced blocks, largest first.

Unannounced blocks in Hong Kong SAR China

899 blocks match, ordered by prefix.

Allocated but unannounced blocks, 551 to 600 of 899
Prefix	Addresses	Registry	Country	Allocated
2401:1280::/32	4.3B × /64	APNIC	HK	8th Jun 2014
2401:280::/32	4.3B × /64	APNIC	HK	24th May 2014
2401:2d40::/32	4.3B × /64	APNIC	HK	24th May 2017
2401:3040::/32	4.3B × /64	APNIC	HK	26th May 2017
2401:3260::/32	4.3B × /64	APNIC	HK	6th Sept 2023
2401:360::/32	4.3B × /64	APNIC	HK	26th May 2023
2401:3680::/32	4.3B × /64	APNIC	HK	16th Jul 2014
2401:36c0::/32	4.3B × /64	APNIC	HK	2nd Jun 2017
2401:37c0::/32	4.3B × /64	APNIC	HK	6th Jun 2017
2401:39c0::/32	4.3B × /64	APNIC	HK	6th Jun 2017
2401:3ca0::/32	4.3B × /64	APNIC	HK	25th Sept 2023
2401:3e40::/32	4.3B × /64	APNIC	HK	6th Jun 2017
2401:4060::/32	4.3B × /64	APNIC	HK	29th Sept 2023
2401:41c0::/32	4.3B × /64	APNIC	HK	6th Jun 2017
2401:4840::/32	4.3B × /64	APNIC	HK	7th Jun 2017
2401:4bc0::/32	4.3B × /64	APNIC	HK	8th Jun 2017
2401:4c40::/32	4.3B × /64	APNIC	HK	8th Jun 2017
2401:4e80::/32	4.3B × /64	APNIC	HK	23rd Jul 2014
2401:5480::/32	4.3B × /64	APNIC	HK	4th Aug 2014
2401:5900::/32	4.3B × /64	APNIC	HK	30th Jun 2011
2401:7ac0::/32	4.3B × /64	APNIC	HK	5th Jul 2017
2401:7b20::/32	4.3B × /64	APNIC	HK	29th Jan 2024
2401:7d20::/32	4.3B × /64	APNIC	HK	2nd Feb 2024
2401:87c0::/32	4.3B × /64	APNIC	HK	19th Jul 2017
2401:8880::/32	4.3B × /64	APNIC	HK	4th Sept 2014
2401:89a0::/32	4.3B × /64	APNIC	HK	14th Mar 2024
2401:89c0::/32	4.3B × /64	APNIC	HK	21st Jul 2017
2401:8b80::/32	4.3B × /64	APNIC	HK	5th Sept 2014
2401:8d40::/32	4.3B × /64	APNIC	HK	25th Jul 2017
2401:95a0::/32	4.3B × /64	APNIC	HK	17th Apr 2024
2401:9820::/32	4.3B × /64	APNIC	HK	26th Apr 2024
2401:9880::/32	4.3B × /64	APNIC	HK	26th Sept 2014
2401:99c0::/32	4.3B × /64	APNIC	HK	7th Aug 2017
2401:9c80::/32	4.3B × /64	APNIC	HK	29th Sept 2014
2401:9d80::/32	4.3B × /64	APNIC	HK	30th Sept 2014
2401:a080::/32	4.3B × /64	APNIC	HK	1st Oct 2014
2401:a680::/32	4.3B × /64	APNIC	HK	8th Oct 2014
2401:a6c0::/32	4.3B × /64	APNIC	HK	17th Aug 2017
2401:ab80::/32	4.3B × /64	APNIC	HK	15th Oct 2014
2401:b440::/32	4.3B × /64	APNIC	HK	30th Aug 2017
2401:b960::/32	4.3B × /64	APNIC	HK	8th Aug 2024
2401:bec0::/32	4.3B × /64	APNIC	HK	9th Sept 2017
2401:c0::/32	4.3B × /64	APNIC	HK	21st Apr 2017
2401:c0c0::/32	4.3B × /64	APNIC	HK	11th Sept 2017
2401:cc80::/32	4.3B × /64	APNIC	HK	1st Dec 2014
2401:cdc0::/32	4.3B × /64	APNIC	HK	21st Sept 2017
2401:d280::/32	4.3B × /64	APNIC	HK	3rd Dec 2014
2401:d840::/32	4.3B × /64	APNIC	HK	6th Oct 2017
2401:d8c0::/32	4.3B × /64	APNIC	HK	6th Oct 2017
2401:d980::/32	4.3B × /64	APNIC	HK	11th Dec 2014