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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.

Unannounced blocks

85,458 blocks match, ordered by prefix.

Allocated but unannounced blocks, 42601 to 42650 of 85458
Prefix	Addresses	Registry	Country	Allocated
2001:df7:3e00::/48	65.5k × /64	APNIC	AU	8th Dec 2016
2001:df7:3e40::/48	65.5k × /64	APNIC	IN	24th Jul 2026
2001:df7:3e80::/48	65.5k × /64	APNIC	IN	9th Aug 2021
2001:df7:3f00::/48	65.5k × /64	APNIC	ID	30th Nov 2018
2001:df7:3f40::/48	65.5k × /64	APNIC	ID	24th Jul 2026
2001:df7:3f80::/48	65.5k × /64	APNIC	VN	10th Aug 2021
2001:df7:3fc0::/48	65.5k × /64	APNIC	ID	24th Jul 2026
2001:df7:4040::/48	65.5k × /64	APNIC	ID	24th Jul 2026
2001:df7:4080::/48	65.5k × /64	APNIC	VN	10th Aug 2021
2001:df7:40c0::/48	65.5k × /64	APNIC	ID	24th Jul 2026
2001:df7:4100::/48	65.5k × /64	APNIC	IN	30th Nov 2018
2001:df7:4140::/48	65.5k × /64	APNIC	ID	24th Jul 2026
2001:df7:4180::/48	65.5k × /64	APNIC	PK	10th Aug 2021
2001:df7:41c0::/48	65.5k × /64	APNIC	PK	27th Jul 2026
2001:df7:4200::/48	65.5k × /64	APNIC	AU	8th Dec 2016
2001:df7:4240::/48	65.5k × /64	APNIC	ID	28th Jul 2026
2001:df7:42c0::/48	65.5k × /64	APNIC	ID	28th Jul 2026
2001:df7:4300::/48	65.5k × /64	APNIC	BD	30th Nov 2018
2001:df7:4340::/48	65.5k × /64	APNIC	ID	28th Jul 2026
2001:df7:4380::/48	65.5k × /64	APNIC	IN	11th Aug 2021
2001:df7:43c0::/48	65.5k × /64	APNIC	ID	28th Jul 2026
2001:df7:4400::/48	65.5k × /64	APNIC	IN	13th Nov 2015
2001:df7:440::/48	65.5k × /64	APNIC	ID	8th May 2026
2001:df7:4440::/48	65.5k × /64	APNIC	ID	28th Jul 2026
2001:df7:44c0::/48	65.5k × /64	APNIC	ID	28th Jul 2026
2001:df7:4500::/48	65.5k × /64	APNIC	BD	3rd Dec 2018
2001:df7:4540::/48	65.5k × /64	APNIC	ID	28th Jul 2026
2001:df7:4580::/48	65.5k × /64	APNIC	IN	11th Aug 2021
2001:df7:45c0::/48	65.5k × /64	APNIC	ID	28th Jul 2026
2001:df7:4600::/48	65.5k × /64	APNIC	IN	8th Dec 2016
2001:df7:4640::/48	65.5k × /64	APNIC	ID	28th Jul 2026
2001:df7:4680::/48	65.5k × /64	APNIC	PK	11th Aug 2021
2001:df7:46c0::/48	65.5k × /64	APNIC	ID	28th Jul 2026
2001:df7:4740::/48	65.5k × /64	APNIC	IN	28th Jul 2026
2001:df7:4780::/48	65.5k × /64	APNIC	BD	11th Aug 2021
2001:df7:47c0::/48	65.5k × /64	APNIC	VN	29th Jul 2026
2001:df7:4840::/48	65.5k × /64	APNIC	VN	29th Jul 2026
2001:df7:4880::/48	65.5k × /64	APNIC	BD	12th Aug 2021
2001:df7:48c0::/48	65.5k × /64	APNIC	PK	29th Jul 2026
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