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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 12351 to 12400 of 22624
Prefix	Addresses	Registry	Country	Allocated
2001:df7:4900::/48	65.5k × /64	APNIC	VN	4th Dec 2018
2001:df7:4940::/48	65.5k × /64	APNIC	BT	30th Jul 2026
2001:df7:4a40::/48	65.5k × /64	APNIC	BD	30th Jul 2026
2001:df7:4a80::/48	65.5k × /64	APNIC	BD	12th Aug 2021
2001:df7:4ac0::/48	65.5k × /64	APNIC	ID	31st Jul 2026
2001:df7:4b00::/48	65.5k × /64	APNIC	AU	4th Dec 2018
2001:df7:4b40::/48	65.5k × /64	APNIC	ID	31st Jul 2026
2001:df7:4bc0::/48	65.5k × /64	APNIC	ID	31st Jul 2026
2001:df7:4c00::/48	65.5k × /64	APNIC	IN	13th Nov 2015
2001:df7:4c0::/48	65.5k × /64	APNIC	BD	8th May 2026
2001:df7:4c40::/48	65.5k × /64	APNIC	ID	31st Jul 2026
2001:df7:4cc0::/48	65.5k × /64	APNIC	ID	31st Jul 2026
2001:df7:4d00::/48	65.5k × /64	APNIC	AU	5th Dec 2018
2001:df7:4d40::/48	65.5k × /64	APNIC	ID	31st Jul 2026
2001:df7:4dc0::/48	65.5k × /64	APNIC	IN	2nd Aug 2026
2001:df7:4e00::/48	65.5k × /64	APNIC	AU	9th Dec 2016
2001:df7:4e40::/48	65.5k × /64	APNIC	ID	3rd Aug 2026
2001:df7:4e80::/48	65.5k × /64	APNIC	IN	14th Aug 2021
2001:df7:4ec0::/48	65.5k × /64	APNIC	ID	3rd Aug 2026
2001:df7:4f00::/48	65.5k × /64	APNIC	AU	5th Dec 2018
2001:df7:4f40::/48	65.5k × /64	APNIC	ID	3rd Aug 2026
2001:df7:4fc0::/48	65.5k × /64	APNIC	BD	3rd Aug 2026
2001:df7:5000::/48	65.5k × /64	APNIC	IN	8th Nov 2013
2001:df7:500::/48	65.5k × /64	APNIC	WS	17th Oct 2018
2001:df7:5040::/48	65.5k × /64	APNIC	NZ	4th Aug 2026
2001:df7:50c0::/48	65.5k × /64	APNIC	TH	4th Aug 2026
2001:df7:5140::/48	65.5k × /64	APNIC	IN	4th Aug 2026
2001:df7:5180::/48	65.5k × /64	APNIC	IN	16th Aug 2021
2001:df7:51c0::/48	65.5k × /64	APNIC	ID	5th Aug 2026
2001:df7:5200::/48	65.5k × /64	APNIC	NP	13th Dec 2016
2001:df7:5240::/48	65.5k × /64	APNIC	ID	5th Aug 2026
2001:df7:52c0::/48	65.5k × /64	APNIC	ID	5th Aug 2026
2001:df7:5340::/48	65.5k × /64	APNIC	VN	5th Aug 2026
2001:df7:53c0::/48	65.5k × /64	APNIC	VN	5th Aug 2026
2001:df7:5480::/48	65.5k × /64	APNIC	BD	18th Aug 2021
2001:df7:54c0::/48	65.5k × /64	APNIC	IN	6th Aug 2026
2001:df7:5500::/48	65.5k × /64	APNIC	HK	7th Dec 2018
2001:df7:55c0::/48	65.5k × /64	APNIC	HK	7th Aug 2026
2001:df7:5640::/48	65.5k × /64	APNIC	ID	7th Aug 2026
2001:df7:56c0::/48	65.5k × /64	APNIC	VN	7th Aug 2026
2001:df7:5700::/48	65.5k × /64	APNIC	BD	10th Dec 2018
2001:df7:5740::/48	65.5k × /64	APNIC	VN	7th Aug 2026
2001:df7:5780::/48	65.5k × /64	APNIC	PK	18th Aug 2021
2001:df7:57c0::/48	65.5k × /64	APNIC	ID	10th Aug 2026
2001:df7:5840::/48	65.5k × /64	APNIC	ID	10th Aug 2026
2001:df7:5880::/48	65.5k × /64	APNIC	PH	19th Aug 2021
2001:df7:58c0::/48	65.5k × /64	APNIC	BD	10th Aug 2026
2001:df7:5940::/48	65.5k × /64	APNIC	ID	10th Aug 2026
2001:df7:5980::/48	65.5k × /64	APNIC	MY	19th Aug 2021
2001:df7:59c0::/48	65.5k × /64	APNIC	ID	10th Aug 2026