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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

22,624 blocks match, ordered by prefix.

Allocated but unannounced blocks, 11251 to 11300 of 22624
Prefix	Addresses	Registry	Country	Allocated
2001:df5:bb80::/48	65.5k × /64	APNIC	BD	5th Jan 2021
2001:df5:bbc0::/48	65.5k × /64	APNIC	AU	16th Jun 2025
2001:df5:bc0::/48	65.5k × /64	APNIC	ID	5th Feb 2025
2001:df5:bc40::/48	65.5k × /64	APNIC	IN	16th Jun 2025
2001:df5:bc80::/48	65.5k × /64	APNIC	BD	5th Jan 2021
2001:df5:bcc0::/48	65.5k × /64	APNIC	BD	16th Jun 2025
2001:df5:bd00::/48	65.5k × /64	APNIC	BD	4th Jul 2018
2001:df5:bd40::/48	65.5k × /64	APNIC	AU	16th Jun 2025
2001:df5:bd80::/48	65.5k × /64	APNIC	BD	5th Jan 2021
2001:df5:bdc0::/48	65.5k × /64	APNIC	VN	16th Jun 2025
2001:df5:bec0::/48	65.5k × /64	APNIC	BD	18th Jun 2025
2001:df5:bf00::/48	65.5k × /64	APNIC	ID	4th Jul 2018
2001:df5:bf80::/48	65.5k × /64	APNIC	IN	6th Jan 2021
2001:df5:bfc0::/48	65.5k × /64	APNIC	ID	19th Jun 2025
2001:df5:c00::/48	65.5k × /64	APNIC	NZ	24th Jul 2015
2001:df5:c0::/48	65.5k × /64	APNIC	BD	28th Jan 2025
2001:df5:c0c0::/48	65.5k × /64	APNIC	BD	19th Jun 2025
2001:df5:c140::/48	65.5k × /64	APNIC	ID	19th Jun 2025
2001:df5:c180::/48	65.5k × /64	APNIC	BD	7th Jan 2021
2001:df5:c1c0::/48	65.5k × /64	APNIC	VN	19th Jun 2025
2001:df5:c200::/48	65.5k × /64	APNIC	VN	17th Oct 2016
2001:df5:c240::/48	65.5k × /64	APNIC	VN	19th Jun 2025
2001:df5:c2c0::/48	65.5k × /64	APNIC	VN	19th Jun 2025
2001:df5:c340::/48	65.5k × /64	APNIC	VN	19th Jun 2025
2001:df5:c3c0::/48	65.5k × /64	APNIC	VN	19th Jun 2025
2001:df5:c400::/48	65.5k × /64	APNIC	TH	1st Sept 2015
2001:df5:c40::/48	65.5k × /64	APNIC	IN	6th Feb 2025
2001:df5:c440::/48	65.5k × /64	APNIC	VN	19th Jun 2025
2001:df5:c480::/48	65.5k × /64	APNIC	MY	8th Jan 2021
2001:df5:c4c0::/48	65.5k × /64	APNIC	IN	20th Jun 2025
2001:df5:c500::/48	65.5k × /64	APNIC	IN	9th Jul 2018
2001:df5:c580::/48	65.5k × /64	APNIC	NZ	10th Jan 2021
2001:df5:c5c0::/48	65.5k × /64	APNIC	BD	23rd Jun 2025
2001:df5:c640::/48	65.5k × /64	APNIC	PH	23rd Jun 2025
2001:df5:c6c0::/48	65.5k × /64	APNIC	ID	24th Jun 2025
2001:df5:c700::/48	65.5k × /64	APNIC	NZ	9th Jul 2018
2001:df5:c740::/48	65.5k × /64	APNIC	ID	24th Jun 2025
2001:df5:c7c0::/48	65.5k × /64	APNIC	KR	24th Jun 2025
2001:df5:c80::/48	65.5k × /64	APNIC	ID	9th Oct 2020
2001:df5:c840::/48	65.5k × /64	APNIC	IN	24th Jun 2025
2001:df5:c880::/48	65.5k × /64	APNIC	BD	11th Jan 2021
2001:df5:c900::/48	65.5k × /64	APNIC	ID	10th Jul 2018
2001:df5:ca00::/48	65.5k × /64	APNIC	TH	18th Oct 2016
2001:df5:ca40::/48	65.5k × /64	APNIC	BD	26th Jun 2025
2001:df5:ca80::/48	65.5k × /64	APNIC	HK	12th Jan 2021
2001:df5:cac0::/48	65.5k × /64	APNIC	ID	27th Jun 2025
2001:df5:cb00::/48	65.5k × /64	APNIC	AU	11th Jul 2018
2001:df5:cb40::/48	65.5k × /64	APNIC	ID	27th Jun 2025
2001:df5:cb80::/48	65.5k × /64	APNIC	MY	12th Jan 2021
2001:df5:cc00::/48	65.5k × /64	APNIC	AU	2nd Sept 2015