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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

22,624 blocks match, ordered by prefix.

Allocated but unannounced blocks, 12001 to 12050 of 22624
Prefix	Addresses	Registry	Country	Allocated
2001:df6:ca40::/48	65.5k × /64	APNIC	BD	6th Mar 2026
2001:df6:ca80::/48	65.5k × /64	APNIC	PH	10th Jun 2021
2001:df6:cac0::/48	65.5k × /64	APNIC	ID	6th Mar 2026
2001:df6:cb00::/48	65.5k × /64	APNIC	ID	25th Sept 2018
2001:df6:cb40::/48	65.5k × /64	APNIC	MM	6th Mar 2026
2001:df6:cb80::/48	65.5k × /64	APNIC	HK	10th Jun 2021
2001:df6:cc0::/48	65.5k × /64	APNIC	ID	28th Aug 2025
2001:df6:cc40::/48	65.5k × /64	APNIC	ID	6th Mar 2026
2001:df6:cc80::/48	65.5k × /64	APNIC	PK	10th Jun 2021
2001:df6:ccc0::/48	65.5k × /64	APNIC	ID	6th Mar 2026
2001:df6:cd00::/48	65.5k × /64	APNIC	PK	26th Sept 2018
2001:df6:cd40::/48	65.5k × /64	APNIC	BD	9th Mar 2026
2001:df6:cd80::/48	65.5k × /64	APNIC	AU	10th Jun 2021
2001:df6:cdc0::/48	65.5k × /64	APNIC	ID	10th Mar 2026
2001:df6:ce40::/48	65.5k × /64	APNIC	VN	10th Mar 2026
2001:df6:ce80::/48	65.5k × /64	APNIC	NZ	11th Jun 2021
2001:df6:cf00::/48	65.5k × /64	APNIC	IN	26th Sept 2018
2001:df6:cf40::/48	65.5k × /64	APNIC	PH	10th Mar 2026
2001:df6:cf80::/48	65.5k × /64	APNIC	VN	11th Jun 2021
2001:df6:d000::/48	65.5k × /64	APNIC	HK	28th Oct 2013
2001:df6:d040::/48	65.5k × /64	APNIC	AU	11th Mar 2026
2001:df6:d080::/48	65.5k × /64	APNIC	IN	14th Jun 2021
2001:df6:d0c0::/48	65.5k × /64	APNIC	IN	11th Mar 2026
2001:df6:d100::/48	65.5k × /64	APNIC	ID	26th Sept 2018
2001:df6:d140::/48	65.5k × /64	APNIC	NZ	12th Mar 2026
2001:df6:d180::/48	65.5k × /64	APNIC	BD	14th Jun 2021
2001:df6:d1c0::/48	65.5k × /64	APNIC	PK	12th Mar 2026
2001:df6:d200::/48	65.5k × /64	APNIC	IN	25th Nov 2016
2001:df6:d240::/48	65.5k × /64	APNIC	ID	13th Mar 2026
2001:df6:d280::/48	65.5k × /64	APNIC	IN	14th Jun 2021
2001:df6:d300::/48	65.5k × /64	APNIC	NZ	27th Sept 2018
2001:df6:d380::/48	65.5k × /64	APNIC	IN	14th Jun 2021
2001:df6:d3c0::/48	65.5k × /64	APNIC	ID	16th Mar 2026
2001:df6:d40::/48	65.5k × /64	APNIC	SG	28th Aug 2025
2001:df6:d480::/48	65.5k × /64	APNIC	AU	16th Jun 2021
2001:df6:d4c0::/48	65.5k × /64	APNIC	SG	16th Mar 2026
2001:df6:d500::/48	65.5k × /64	APNIC	AU	2nd Oct 2018
2001:df6:d540::/48	65.5k × /64	APNIC	ID	17th Mar 2026
2001:df6:d580::/48	65.5k × /64	APNIC	BD	16th Jun 2021
2001:df6:d5c0::/48	65.5k × /64	APNIC	PK	17th Mar 2026
2001:df6:d640::/48	65.5k × /64	APNIC	IN	18th Mar 2026
2001:df6:d6c0::/48	65.5k × /64	APNIC	ID	18th Mar 2026
2001:df6:d700::/48	65.5k × /64	APNIC	ID	2nd Oct 2018
2001:df6:d740::/48	65.5k × /64	APNIC	ID	19th Mar 2026
2001:df6:d800::/48	65.5k × /64	APNIC	BD	25th Jun 2014
2001:df6:d80::/48	65.5k × /64	APNIC	IN	23rd Feb 2021
2001:df6:d840::/48	65.5k × /64	APNIC	HK	24th Mar 2026
2001:df6:d8c0::/48	65.5k × /64	APNIC	IN	24th Mar 2026
2001:df6:d900::/48	65.5k × /64	APNIC	AU	3rd Oct 2018
2001:df6:d940::/48	65.5k × /64	APNIC	IN	25th Mar 2026