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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks registered through APNIC

22,624 blocks match, ordered by prefix.

Allocated but unannounced blocks, 11951 to 12000 of 22624
Prefix	Addresses	Registry	Country	Allocated
2001:df6:b7c0::/48	65.5k × /64	APNIC	IN	16th Feb 2026
2001:df6:b80::/48	65.5k × /64	APNIC	IN	22nd Feb 2021
2001:df6:b840::/48	65.5k × /64	APNIC	IN	16th Feb 2026
2001:df6:b880::/48	65.5k × /64	APNIC	PK	28th May 2021
2001:df6:b8c0::/48	65.5k × /64	APNIC	ID	16th Feb 2026
2001:df6:b900::/48	65.5k × /64	APNIC	BD	19th Sept 2018
2001:df6:b9c0::/48	65.5k × /64	APNIC	IN	16th Feb 2026
2001:df6:ba40::/48	65.5k × /64	APNIC	BD	18th Feb 2026
2001:df6:ba80::/48	65.5k × /64	APNIC	IN	30th May 2021
2001:df6:bac0::/48	65.5k × /64	APNIC	MM	18th Feb 2026
2001:df6:bb00::/48	65.5k × /64	APNIC	SG	20th Sept 2018
2001:df6:bb40::/48	65.5k × /64	APNIC	IN	18th Feb 2026
2001:df6:bc00::/48	65.5k × /64	APNIC	HK	16th Oct 2015
2001:df6:bc0::/48	65.5k × /64	APNIC	ID	27th Aug 2025
2001:df6:bc40::/48	65.5k × /64	APNIC	ID	19th Feb 2026
2001:df6:bc80::/48	65.5k × /64	APNIC	KH	31st May 2021
2001:df6:bcc0::/48	65.5k × /64	APNIC	ID	20th Feb 2026
2001:df6:bd80::/48	65.5k × /64	APNIC	BD	31st May 2021
2001:df6:bdc0::/48	65.5k × /64	APNIC	IN	22nd Feb 2026
2001:df6:be00::/48	65.5k × /64	APNIC	NZ	23rd Nov 2016
2001:df6:be40::/48	65.5k × /64	APNIC	BD	22nd Feb 2026
2001:df6:bec0::/48	65.5k × /64	APNIC	BD	23rd Feb 2026
2001:df6:bf00::/48	65.5k × /64	APNIC	ID	21st Sept 2018
2001:df6:bf80::/48	65.5k × /64	APNIC	VN	1st Jun 2021
2001:df6:c040::/48	65.5k × /64	APNIC	PH	24th Feb 2026
2001:df6:c0c0::/48	65.5k × /64	APNIC	IN	24th Feb 2026
2001:df6:c100::/48	65.5k × /64	APNIC	ID	21st Sept 2018
2001:df6:c180::/48	65.5k × /64	APNIC	MY	3rd Jun 2021
2001:df6:c1c0::/48	65.5k × /64	APNIC	AU	25th Feb 2026
2001:df6:c200::/48	65.5k × /64	APNIC	AU	23rd Nov 2016
2001:df6:c240::/48	65.5k × /64	APNIC	MM	25th Feb 2026
2001:df6:c280::/48	65.5k × /64	APNIC	NP	3rd Jun 2021
2001:df6:c2c0::/48	65.5k × /64	APNIC	ID	25th Feb 2026
2001:df6:c300::/48	65.5k × /64	APNIC	ID	21st Sept 2018
2001:df6:c380::/48	65.5k × /64	APNIC	NP	4th Jun 2021
2001:df6:c440::/48	65.5k × /64	APNIC	ID	27th Feb 2026
2001:df6:c4c0::/48	65.5k × /64	APNIC	IN	27th Feb 2026
2001:df6:c500::/48	65.5k × /64	APNIC	AU	24th Sept 2018
2001:df6:c5c0::/48	65.5k × /64	APNIC	IN	2nd Mar 2026
2001:df6:c600::/48	65.5k × /64	APNIC	BD	23rd Nov 2016
2001:df6:c6c0::/48	65.5k × /64	APNIC	PK	3rd Mar 2026
2001:df6:c740::/48	65.5k × /64	APNIC	PH	4th Mar 2026
2001:df6:c780::/48	65.5k × /64	APNIC	PH	8th Jun 2021
2001:df6:c7c0::/48	65.5k × /64	APNIC	PK	4th Mar 2026
2001:df6:c801::/48	65.5k × /64	APNIC	IN	9th Nov 2016
2001:df6:c80::/48	65.5k × /64	APNIC	IN	22nd Feb 2021
2001:df6:c8c0::/48	65.5k × /64	APNIC	ID	5th Mar 2026
2001:df6:c940::/48	65.5k × /64	APNIC	ID	5th Mar 2026
2001:df6:c980::/48	65.5k × /64	APNIC	MN	10th Jun 2021
2001:df6:c9c0::/48	65.5k × /64	APNIC	ID	6th Mar 2026