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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,424 blocks match, ordered by prefix.

Allocated but unannounced blocks, 57401 to 57450 of 84424
Prefix	Addresses	Registry	Country	Allocated
2407:5c00::/32	4.3B × /64	APNIC	IN	1st Mar 2010
2407:5c0::/32	4.3B × /64	APNIC	VN	13th Jan 2021
2407:5d40::/32	4.3B × /64	APNIC	AU	5th May 2021
2407:5dc0::/32	4.3B × /64	APNIC	PH	7th May 2021
2407:5e00::/32	4.3B × /64	APNIC	KH	23rd Feb 2011
2407:5e80::/32	4.3B × /64	APNIC	IN	26th Sept 2016
2407:5ec0::/32	4.3B × /64	APNIC	IN	10th May 2021
2407:5fc0::/32	4.3B × /64	APNIC	SG	11th May 2021
2407:6000::/32	4.3B × /64	APNIC	MY	12th Sept 2007
2407:6040::/32	4.3B × /64	APNIC	CN	12th May 2021
2407:6140::/32	4.3B × /64	APNIC	JP	13th May 2021
2407:6300::/32	4.3B × /64	APNIC	SG	2nd Jul 2013
2407:640::/32	4.3B × /64	APNIC	VN	13th Jan 2021
2407:6500::/32	4.3B × /64	APNIC	KR	3rd Jul 2013
2407:6540::/32	4.3B × /64	APNIC	MY	18th May 2021
2407:6580::/32	4.3B × /64	APNIC	CN	29th Sept 2016
2407:6600::/32	4.3B × /64	APNIC	TH	25th Feb 2011
2407:66c0::/32	4.3B × /64	APNIC	VN	19th May 2021
2407:6700::/32	4.3B × /64	APNIC	KR	3rd Jul 2013
2407:6740::/32	4.3B × /64	APNIC	VN	19th May 2021
2407:6780::/32	4.3B × /64	APNIC	SC	30th Sept 2016
2407:67c0::/32	4.3B × /64	APNIC	VN	19th May 2021
2407:6840::/32	4.3B × /64	APNIC	IN	19th May 2021
2407:6880::/32	4.3B × /64	APNIC	HK	30th Sept 2016
2407:68c0::/32	4.3B × /64	APNIC	IN	19th May 2021
2407:6980::/32	4.3B × /64	APNIC	IN	30th Sept 2016
2407:6b00::/32	4.3B × /64	APNIC	AU	5th Jul 2013
2407:6b40::/32	4.3B × /64	APNIC	AF	25th May 2021
2407:6b80::/32	4.3B × /64	APNIC	ID	3rd Oct 2016
2407:6cc0::/32	4.3B × /64	APNIC	PH	28th May 2021
2407:6d80::/32	4.3B × /64	APNIC	NZ	4th Oct 2016
2407:6e80::/32	4.3B × /64	APNIC	MM	4th Oct 2016
2407:7080::/32	4.3B × /64	APNIC	AU	4th Oct 2016
2407:70c0::/32	4.3B × /64	APNIC	VN	1st Jun 2021
2407:7180::/32	4.3B × /64	APNIC	NZ	5th Oct 2016
2407:71c0::/32	4.3B × /64	APNIC	BD	2nd Jun 2021
2407:7280::/32	4.3B × /64	APNIC	HK	5th Oct 2016
2407:7300::/32	4.3B × /64	APNIC	AU	8th Jul 2013
2407:7340::/32	4.3B × /64	APNIC	ID	2nd Jun 2021
2407:73c0::/32	4.3B × /64	APNIC	ID	3rd Jun 2021
2407:740::/32	4.3B × /64	APNIC	IN	13th Jan 2021
2407:7440::/32	4.3B × /64	APNIC	IN	3rd Jun 2021
2407:7480::/32	4.3B × /64	APNIC	MY	7th Oct 2016
2407:7500::/32	4.3B × /64	APNIC	AU	9th Jul 2013
2407:7540::/32	4.3B × /64	APNIC	ID	3rd Jun 2021
2407:75c0::/32	4.3B × /64	APNIC	ID	3rd Jun 2021
2407:7600::/32	4.3B × /64	APNIC	ID	28th Feb 2011
2407:7640::/32	4.3B × /64	APNIC	ID	3rd Jun 2021
2407:7680::/32	4.3B × /64	APNIC	CN	8th Oct 2016
2407:76c0::/32	4.3B × /64	APNIC	ID	3rd Jun 2021