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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.

Unannounced blocks

84,419 blocks match, ordered by prefix.

Allocated but unannounced blocks, 56201 to 56250 of 84419
Prefix	Addresses	Registry	Country	Allocated
2405:37c0::/32	4.3B × /64	APNIC	CN	27th Aug 2019
2405:3880::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:38c0::/32	4.3B × /64	APNIC	VN	28th Aug 2019
2405:3900::/32	4.3B × /64	APNIC	KH	20th Sept 2012
2405:3940::/32	4.3B × /64	APNIC	PH	29th Aug 2019
2405:3980::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:39c0::/32	4.3B × /64	APNIC	CN	30th Aug 2019
2405:3a00::/32	4.3B × /64	APNIC	NZ	16th Nov 2010
2405:3a80::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:3ac0::/32	4.3B × /64	APNIC	CN	30th Aug 2019
2405:3b00::/32	4.3B × /64	APNIC	CN	21st Sept 2012
2405:3b80::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:3bc0::/32	4.3B × /64	APNIC	CN	30th Aug 2019
2405:3c00::/32	4.3B × /64	APNIC	AU	11th Feb 2010
2405:3c40::/32	4.3B × /64	APNIC	CN	30th Aug 2019
2405:3c80::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:3d00::/32	4.3B × /64	APNIC	KR	21st Sept 2012
2405:3d80::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:3e00::/32	4.3B × /64	APNIC	HK	18th Nov 2010
2405:3e80::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:3ec0::/32	4.3B × /64	APNIC	TW	2nd Sept 2019
2405:3f40::/32	4.3B × /64	APNIC	CN	2nd Sept 2019
2405:3f80::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:4040::/32	4.3B × /64	APNIC	IN	2nd Sept 2019
2405:4080::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:40::/32	4.3B × /64	APNIC	HK	2nd Jul 2019
2405:4100::/32	4.3B × /64	APNIC	ID	21st Sept 2012
2405:4140::/32	4.3B × /64	APNIC	CN	3rd Sept 2019
2405:4180::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:41c0::/32	4.3B × /64	APNIC	CN	3rd Sept 2019
2405:4280::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:42c0::/32	4.3B × /64	APNIC	ID	4th Sept 2019
2405:4300::/32	4.3B × /64	APNIC	KR	24th Sept 2012
2405:4340::/32	4.3B × /64	APNIC	VN	6th Sept 2019
2405:4380::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:4480::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:44c0::/32	4.3B × /64	APNIC	CN	10th Sept 2019
2405:4540::/32	4.3B × /64	APNIC	CN	10th Sept 2019
2405:4580::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:4640::/32	4.3B × /64	APNIC	ID	11th Sept 2019
2405:4680::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:46c0::/32	4.3B × /64	APNIC	ID	12th Sept 2019
2405:4780::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:480::/32	4.3B × /64	APNIC	CN	9th May 2016
2405:4880::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:48c0::/32	4.3B × /64	APNIC	ID	17th Sept 2019
2405:4900::/32	4.3B × /64	APNIC	SG	24th Sept 2012
2405:4980::/32	4.3B × /64	APNIC	CN	16th May 2016
2405:49c0::/32	4.3B × /64	APNIC	ID	17th Sept 2019
2405:4a00::/32	4.3B × /64	APNIC	AU	19th Nov 2010