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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Browse by country

Countries with unannounced space registered through APNIC, largest first.

Unannounced blocks in China

6,720 blocks match, ordered by prefix.

Allocated but unannounced blocks, 4501 to 4550 of 6720
Prefix	Addresses	Registry	Country	Allocated
2402:33c0::/32	4.3B × /64	APNIC	CN	13th Dec 2017
2402:39c0::/32	4.3B × /64	APNIC	CN	18th Dec 2017
2402:3a40::/32	4.3B × /64	APNIC	CN	18th Dec 2017
2402:3ac0::/32	4.3B × /64	APNIC	CN	18th Dec 2017
2402:3ba0::/32	4.3B × /64	APNIC	CN	1st Dec 2025
2402:3c00::/32	4.3B × /64	APNIC	CN	13th Oct 2009
2402:3d20::/32	4.3B × /64	APNIC	CN	4th Dec 2025
2402:3de0::/32	4.3B × /64	APNIC	CN	8th Dec 2025
2402:3e00::/32	4.3B × /64	APNIC	CN	12th May 2010
2402:3ec0::/32	4.3B × /64	APNIC	CN	20th Dec 2017
2402:4060::/32	4.3B × /64	APNIC	CN	17th Dec 2025
2402:4140::/32	4.3B × /64	APNIC	CN	22nd Dec 2017
2402:42c0::/32	4.3B × /64	APNIC	CN	25th Dec 2017
2402:4340::/32	4.3B × /64	APNIC	CN	26th Dec 2017
2402:43c0::/32	4.3B × /64	APNIC	CN	26th Dec 2017
2402:440::/32	4.3B × /64	APNIC	CN	16th Nov 2017
2402:4500::/32	4.3B × /64	APNIC	CN	20th Oct 2011
2402:4540::/32	4.3B × /64	APNIC	CN	28th Dec 2017
2402:4820::/32	4.3B × /64	APNIC	CN	14th Jan 2026
2402:4a00::/32	4.3B × /64	APNIC	CN	12th May 2010
2402:4a40::/32	4.3B × /64	APNIC	CN	5th Jan 2018
2402:4a80::/32	4.3B × /64	APNIC	CN	28th Apr 2015
2402:4ac0::/32	4.3B × /64	APNIC	CN	5th Jan 2018
2402:4bc0::/32	4.3B × /64	APNIC	CN	8th Jan 2018
2402:4be0::/32	4.3B × /64	APNIC	CN	2nd Feb 2026
2402:4c40::/32	4.3B × /64	APNIC	CN	8th Jan 2018
2402:4d60::/32	4.3B × /64	APNIC	CN	11th Feb 2026
2402:4d80::/32	4.3B × /64	APNIC	CN	4th May 2015
2402:4ec0::/32	4.3B × /64	APNIC	CN	10th Jan 2018
2402:4f80::/32	4.3B × /64	APNIC	CN	5th May 2015
2402:50a0::/32	4.3B × /64	APNIC	CN	5th Mar 2026
2402:5180::/32	4.3B × /64	APNIC	CN	6th May 2015
2402:51a0::/32	4.3B × /64	APNIC	CN	9th Mar 2026
2402:5340::/32	4.3B × /64	APNIC	CN	11th Jan 2018
2402:5820::/32	4.3B × /64	APNIC	CN	15th Apr 2026
2402:5880::/32	4.3B × /64	APNIC	CN	13th May 2015
2402:5940::/32	4.3B × /64	APNIC	CN	16th Jan 2018
2402:59c0::/32	4.3B × /64	APNIC	CN	16th Jan 2018
2402:5a40::/32	4.3B × /64	APNIC	CN	17th Jan 2018
2402:5b40::/32	4.3B × /64	APNIC	CN	17th Jan 2018
2402:5bc0::/32	4.3B × /64	APNIC	CN	18th Jan 2018
2402:5c0::/32	4.3B × /64	APNIC	CN	17th Nov 2017
2402:5d00::/32	4.3B × /64	APNIC	CN	25th Oct 2011
2402:5e00::/32	4.3B × /64	APNIC	CN	14th May 2010
2402:5f20::/32	4.3B × /64	APNIC	CN	22nd May 2026
2402:5f40::/32	4.3B × /64	APNIC	CN	19th Jan 2018
2402:6060::/32	4.3B × /64	APNIC	CN	28th May 2026
2402:6280::/32	4.3B × /64	APNIC	CN	19th May 2015
2402:6320::/32	4.3B × /64	APNIC	CN	10th Jun 2026
2402:64c0::/32	4.3B × /64	APNIC	CN	25th Jan 2018