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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,285 blocks match, ordered by prefix.

Allocated but unannounced blocks, 56901 to 56950 of 85285
Prefix	Addresses	Registry	Country	Allocated
2405:c00::/32	4.3B × /64	APNIC	PK	11th Feb 2010
2405:c040::/32	4.3B × /64	APNIC	CN	20th Jan 2020
2405:c080::/32	4.3B × /64	APNIC	AU	23rd Jun 2016
2405:c100::/32	4.3B × /64	APNIC	JP	20th Nov 2012
2405:c140::/32	4.3B × /64	APNIC	IN	21st Jan 2020
2405:c180::/32	4.3B × /64	APNIC	HK	23rd Jun 2016
2405:c1c0::/32	4.3B × /64	APNIC	ID	21st Jan 2020
2405:c200::/32	4.3B × /64	APNIC	NZ	17th Dec 2010
2405:c280::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:c2c0::/32	4.3B × /64	APNIC	HK	22nd Jan 2020
2405:c300::/32	4.3B × /64	APNIC	HK	21st Nov 2012
2405:c380::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:c3c0::/32	4.3B × /64	APNIC	IN	23rd Jan 2020
2405:c480::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:c4c0::/32	4.3B × /64	APNIC	IN	24th Jan 2020
2405:c500::/32	4.3B × /64	APNIC	CN	21st Nov 2012
2405:c580::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:c600::/32	4.3B × /64	APNIC	TW	21st Dec 2010
2405:c680::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:c6c0::/32	4.3B × /64	APNIC	IN	28th Jan 2020
2405:c740::/32	4.3B × /64	APNIC	HK	28th Jan 2020
2405:c780::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:c800::/32	4.3B × /64	APNIC	AU	11th Mar 2009
2405:c80::/32	4.3B × /64	APNIC	CN	9th May 2016
2405:c880::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:c980::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:ca80::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:cb40::/32	4.3B × /64	APNIC	ID	3rd Feb 2020
2405:cb80::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:cc0::/32	4.3B × /64	APNIC	IN	12th Jul 2019
2405:cc80::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:ccc0::/32	4.3B × /64	APNIC	TW	6th Feb 2020
2405:cd40::/32	4.3B × /64	APNIC	AF	6th Feb 2020
2405:cd80::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:ce80::/32	4.3B × /64	APNIC	CN	23rd Jun 2016
2405:cec0::/32	4.3B × /64	APNIC	ID	11th Feb 2020
2405:cf00::/32	4.3B × /64	APNIC	AU	26th Nov 2012
2405:d040::/32	4.3B × /64	APNIC	NZ	13th Feb 2020
2405:d100::/32	4.3B × /64	APNIC	AU	26th Nov 2012
2405:d140::/32	4.3B × /64	APNIC	TW	15th Feb 2020
2405:d1c0::/32	4.3B × /64	APNIC	HK	16th Feb 2020
2405:d240::/32	4.3B × /64	APNIC	BD	17th Feb 2020
2405:d280::/32	4.3B × /64	APNIC	CN	24th Jun 2016
2405:d300::/32	4.3B × /64	APNIC	AU	27th Nov 2012
2405:d40::/32	4.3B × /64	APNIC	BD	12th Jul 2019
2405:d440::/32	4.3B × /64	APNIC	BD	18th Feb 2020
2405:d4c0::/32	4.3B × /64	APNIC	CN	19th Feb 2020
2405:d540::/32	4.3B × /64	APNIC	TL	20th Feb 2020
2405:d5c0::/32	4.3B × /64	APNIC	ID	20th Feb 2020
2405:d640::/32	4.3B × /64	APNIC	ID	20th Feb 2020