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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

931 blocks match, ordered by prefix.

Allocated but unannounced blocks, 601 to 650 of 931
Prefix	Addresses	Registry	Country	Allocated
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:a8e0::/32	4.3B × /64	APNIC	HK	19th Jun 2024
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:c480::/32	4.3B × /64	APNIC	HK	22nd Nov 2014
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
2401:dba0::/32	4.3B × /64	APNIC	HK	30th Nov 2024
2401:dc60::/32	4.3B × /64	APNIC	HK	2nd Dec 2024
2401:dda0::/32	4.3B × /64	APNIC	HK	4th Dec 2024
2401:ddc0::/32	4.3B × /64	APNIC	HK	11th Oct 2017
2401:de20::/32	4.3B × /64	APNIC	HK	5th Dec 2024
2401:de40::/32	4.3B × /64	APNIC	HK	11th Oct 2017
2401:e820::/32	4.3B × /64	APNIC	HK	10th Jan 2025
2401:ec60::/32	4.3B × /64	APNIC	HK	2nd Feb 2025
2401:ecc0::/32	4.3B × /64	APNIC	HK	27th Oct 2017
2401:edc0::/32	4.3B × /64	APNIC	HK	27th Oct 2017
2401:ef80::/32	4.3B × /64	APNIC	HK	14th Jan 2015
2401:f060::/32	4.3B × /64	APNIC	HK	18th Feb 2025
2401:f6c0::/32	4.3B × /64	APNIC	HK	8th Nov 2017
2401:fd21::/32	4.3B × /64	APNIC	HK	15th Apr 2026
2401:fd22::/31	8.6B × /64	APNIC	HK	15th Apr 2026
2401:fe60::/32	4.3B × /64	APNIC	HK	16th Apr 2025
2402:11c0::/32	4.3B × /64	APNIC	HK	27th Nov 2017
2402:1240::/32	4.3B × /64	APNIC	HK	27th Nov 2017
2402:1540::/32	4.3B × /64	APNIC	HK	27th Nov 2017
2402:16c0::/32	4.3B × /64	APNIC	HK	28th Nov 2017
2402:1ac0::/32	4.3B × /64	APNIC	HK	29th Nov 2017
2402:1ee0::/32	4.3B × /64	APNIC	HK	31st Jul 2025
2402:1fa0::/32	4.3B × /64	APNIC	HK	4th Aug 2025
2402:1fc0::/32	4.3B × /64	APNIC	HK	1st Dec 2017
2402:2040::/32	4.3B × /64	APNIC	HK	1st Dec 2017
2402:26c0::/32	4.3B × /64	APNIC	HK	4th Dec 2017
2402:2a80::/32	4.3B × /64	APNIC	HK	20th Mar 2015
2402:3b40::/32	4.3B × /64	APNIC	HK	18th Dec 2017
2402:4680::/32	4.3B × /64	APNIC	HK	23rd Apr 2015
2402:47a0::/32	4.3B × /64	APNIC	HK	13th Jan 2026
2402:4d00::/32	4.3B × /64	APNIC	HK	20th Oct 2011
2402:5aa0::/32	4.3B × /64	APNIC	HK	27th Apr 2026
2402:5dc0::/32	4.3B × /64	APNIC	HK	18th Jan 2018