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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through APNIC, largest first.

Unannounced blocks in China

6,720 blocks match, ordered by prefix.

Allocated but unannounced blocks, 5301 to 5350 of 6720
Prefix	Addresses	Registry	Country	Allocated
2406:3300::/32	4.3B × /64	APNIC	CN	4th Feb 2013
2406:3380::/32	4.3B × /64	APNIC	CN	2nd Aug 2016
2406:3480::/32	4.3B × /64	APNIC	CN	2nd Aug 2016
2406:34c0::/32	4.3B × /64	APNIC	CN	30th Jun 2020
2406:3580::/32	4.3B × /64	APNIC	CN	2nd Aug 2016
2406:3680::/32	4.3B × /64	APNIC	CN	2nd Aug 2016
2406:3700::/32	4.3B × /64	APNIC	CN	4th Feb 2013
2406:3780::/32	4.3B × /64	APNIC	CN	2nd Aug 2016
2406:3880::/32	4.3B × /64	APNIC	CN	2nd Aug 2016
2406:3980::/32	4.3B × /64	APNIC	CN	2nd Aug 2016
2406:39c0::/32	4.3B × /64	APNIC	CN	6th Jul 2020
2406:3ac0::/32	4.3B × /64	APNIC	CN	6th Jul 2020
2406:3e80::/32	4.3B × /64	APNIC	CN	3rd Aug 2016
2406:3f80::/32	4.3B × /64	APNIC	CN	3rd Aug 2016
2406:4080::/32	4.3B × /64	APNIC	CN	3rd Aug 2016
2406:40::/32	4.3B × /64	APNIC	CN	15th Apr 2020
2406:40c0::/32	4.3B × /64	APNIC	CN	14th Jul 2020
2406:4180::/32	4.3B × /64	APNIC	CN	3rd Aug 2016
2406:4280::/32	4.3B × /64	APNIC	CN	3rd Aug 2016
2406:42c0::/32	4.3B × /64	APNIC	CN	16th Jul 2020
2406:4340::/32	4.3B × /64	APNIC	CN	17th Jul 2020
2406:4380::/32	4.3B × /64	APNIC	CN	3rd Aug 2016
2406:43c0::/32	4.3B × /64	APNIC	CN	18th Jul 2020
2406:440::/32	4.3B × /64	APNIC	CN	16th Apr 2020
2406:4480::/32	4.3B × /64	APNIC	CN	3rd Aug 2016
2406:4500::/32	4.3B × /64	APNIC	CN	25th Feb 2013
2406:4680::/32	4.3B × /64	APNIC	CN	4th Aug 2016
2406:4b80::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:4c0::/32	4.3B × /64	APNIC	CN	17th Apr 2020
2406:4c80::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:4d80::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:4e80::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:4f00::/32	4.3B × /64	APNIC	CN	28th Feb 2013
2406:4f80::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5080::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:50c0::/32	4.3B × /64	APNIC	CN	3rd Aug 2020
2406:5180::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5280::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5380::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5480::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5580::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5680::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5780::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5840::/32	4.3B × /64	APNIC	CN	12th Aug 2020
2406:5841::/32	4.3B × /64	APNIC	CN	16th Oct 2025
2406:5940::/32	4.3B × /64	APNIC	CN	13th Aug 2020
2406:5980::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5a40::/32	4.3B × /64	APNIC	CN	14th Aug 2020
2406:5ac0::/32	4.3B × /64	APNIC	CN	14th Aug 2020
2406:5b40::/32	4.3B × /64	APNIC	CN	14th Aug 2020