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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

6,720 blocks match, ordered by prefix.

Allocated but unannounced blocks, 4401 to 4450 of 6720
Prefix	Addresses	Registry	Country	Allocated
2401:b6e0::/32	4.3B × /64	APNIC	CN	30th Jul 2024
2401:b7c0::/32	4.3B × /64	APNIC	CN	4th Sept 2017
2401:b940::/32	4.3B × /64	APNIC	CN	5th Sept 2017
2401:ba00::/32	4.3B × /64	APNIC	CN	23rd Apr 2010
2401:ba0::/32	4.3B × /64	APNIC	CN	16th Jun 2023
2401:ba40::/32	4.3B × /64	APNIC	CN	6th Sept 2017
2401:bb20::/32	4.3B × /64	APNIC	CN	14th Aug 2024
2401:bc0::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:bc60::/31	8.6B × /64	APNIC	CN	15th Aug 2024
2401:bda0::/32	4.3B × /64	APNIC	CN	19th Aug 2024
2401:bf20::/32	4.3B × /64	APNIC	CN	27th Aug 2024
2401:c200::/32	4.3B × /64	APNIC	CN	23rd Apr 2010
2401:c40::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:c540::/32	4.3B × /64	APNIC	CN	13th Sept 2017
2401:c600::/32	4.3B × /64	APNIC	CN	23rd Apr 2010
2401:c640::/32	4.3B × /64	APNIC	CN	14th Sept 2017
2401:c6c0::/32	4.3B × /64	APNIC	CN	14th Sept 2017
2401:c840::/32	4.3B × /64	APNIC	CN	14th Sept 2017
2401:c8c0::/32	4.3B × /64	APNIC	CN	14th Sept 2017
2401:ca20::/32	4.3B × /64	APNIC	CN	7th Oct 2024
2401:cbe0::/32	4.3B × /64	APNIC	CN	9th Oct 2024
2401:cc0::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:cc60::/32	4.3B × /64	APNIC	CN	11th Oct 2024
2401:cf40::/32	4.3B × /64	APNIC	CN	26th Sept 2017
2401:cfc0::/32	4.3B × /64	APNIC	CN	26th Sept 2017
2401:cfe0::/32	4.3B × /64	APNIC	CN	24th Oct 2024
2401:d060::/32	4.3B × /64	APNIC	CN	25th Oct 2024
2401:d0c0::/32	4.3B × /64	APNIC	CN	27th Sept 2017
2401:d140::/32	4.3B × /64	APNIC	CN	27th Sept 2017
2401:d2c0::/32	4.3B × /64	APNIC	CN	28th Sept 2017
2401:d340::/32	4.3B × /64	APNIC	CN	28th Sept 2017
2401:d40::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:d420::/32	4.3B × /64	APNIC	CN	5th Nov 2024
2401:d7e0::/32	4.3B × /64	APNIC	CN	15th Nov 2024
2401:d8e0::/32	4.3B × /64	APNIC	CN	20th Nov 2024
2401:da00::/32	4.3B × /64	APNIC	CN	29th Apr 2010
2401:dbe0::/32	4.3B × /64	APNIC	CN	2nd Dec 2024
2401:dd20::/32	4.3B × /64	APNIC	CN	3rd Dec 2024
2401:dd60::/32	4.3B × /64	APNIC	CN	4th Dec 2024
2401:dfe0::/32	4.3B × /64	APNIC	CN	12th Dec 2024
2401:e00::/32	4.3B × /64	APNIC	CN	26th Mar 2010
2401:e020::/32	4.3B × /64	APNIC	CN	12th Dec 2024
2401:e080::/32	4.3B × /64	APNIC	CN	30th Dec 2014
2401:e0c0::/32	4.3B × /64	APNIC	CN	12th Oct 2017
2401:e140::/32	4.3B × /64	APNIC	CN	12th Oct 2017
2401:e240::/32	4.3B × /64	APNIC	CN	16th Oct 2017
2401:e2c0::/32	4.3B × /64	APNIC	CN	16th Oct 2017
2401:e340::/32	4.3B × /64	APNIC	CN	16th Oct 2017
2401:e360::/32	4.3B × /64	APNIC	CN	23rd Dec 2024
2401:e620::/32	4.3B × /64	APNIC	CN	3rd Jan 2025