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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks

85,458 blocks match, ordered by prefix.

Allocated but unannounced blocks, 42151 to 42200 of 85458
Prefix	Addresses	Registry	Country	Allocated
2001:df6:9980::/48	65.5k × /64	APNIC	SG	30th Apr 2021
2001:df6:99c0::/48	65.5k × /64	APNIC	ID	20th Jan 2026
2001:df6:9a00::/48	65.5k × /64	APNIC	TH	16th Nov 2016
2001:df6:9a40::/48	65.5k × /64	APNIC	IN	20th Jan 2026
2001:df6:9a80::/48	65.5k × /64	APNIC	AU	30th Apr 2021
2001:df6:9ac0::/48	65.5k × /64	APNIC	ID	20th Jan 2026
2001:df6:9b00::/48	65.5k × /64	APNIC	HK	13th Sept 2018
2001:df6:9b80::/48	65.5k × /64	APNIC	NL	4th May 2021
2001:df6:9bc0::/48	65.5k × /64	APNIC	ID	20th Jan 2026
2001:df6:9c0::/48	65.5k × /64	APNIC	ID	27th Aug 2025
2001:df6:9c40::/48	65.5k × /64	APNIC	ID	21st Jan 2026
2001:df6:9c80::/48	65.5k × /64	APNIC	SG	4th May 2021
2001:df6:9cc0::/48	65.5k × /64	APNIC	ID	21st Jan 2026
2001:df6:9d00::/48	65.5k × /64	APNIC	ID	13th Sept 2018
2001:df6:9d40::/48	65.5k × /64	APNIC	ID	21st Jan 2026
2001:df6:9dc0::/48	65.5k × /64	APNIC	IN	21st Jan 2026
2001:df6:9e00::/48	65.5k × /64	APNIC	IN	16th Nov 2016
2001:df6:9e01::/48	65.5k × /64	APNIC	IN	5th Dec 2016
2001:df6:9e40::/48	65.5k × /64	APNIC	IN	22nd Jan 2026
2001:df6:9ec0::/48	65.5k × /64	APNIC	BD	23rd Jan 2026
2001:df6:9f00::/48	65.5k × /64	APNIC	ID	13th Sept 2018
2001:df6:9f40::/48	65.5k × /64	APNIC	ID	23rd Jan 2026
2001:df6:9fc0::/48	65.5k × /64	APNIC	ID	23rd Jan 2026
2001:df6:a000::/48	65.5k × /64	APNIC	JP	9th Jul 2013
2001:df6:a00::/48	65.5k × /64	APNIC	ID	28th Oct 2016
2001:df6:a040::/48	65.5k × /64	APNIC	AE	23rd Jan 2026
2001:df6:a0c0::/48	65.5k × /64	APNIC	NZ	25th Jan 2026
2001:df6:a100::/48	65.5k × /64	APNIC	AU	14th Sept 2018
2001:df6:a140::/48	65.5k × /64	APNIC	ID	26th Jan 2026
2001:df6:a1c0::/48	65.5k × /64	APNIC	VN	26th Jan 2026
2001:df6:a240::/48	65.5k × /64	APNIC	ID	26th Jan 2026
2001:df6:a280::/48	65.5k × /64	APNIC	BD	11th May 2021
2001:df6:a2c0::/48	65.5k × /64	APNIC	ID	27th Jan 2026
2001:df6:a300::/48	65.5k × /64	APNIC	BD	14th Sept 2018
2001:df6:a340::/48	65.5k × /64	APNIC	ID	27th Jan 2026
2001:df6:a3c0::/48	65.5k × /64	APNIC	VN	28th Jan 2026
2001:df6:a40::/48	65.5k × /64	APNIC	BD	27th Aug 2025
2001:df6:a480::/48	65.5k × /64	APNIC	IN	12th May 2021
2001:df6:a4c0::/48	65.5k × /64	APNIC	BD	28th Jan 2026
2001:df6:a500::/48	65.5k × /64	APNIC	IN	14th Sept 2018
2001:df6:a540::/48	65.5k × /64	APNIC	VN	29th Jan 2026
2001:df6:a580::/48	65.5k × /64	APNIC	BD	12th May 2021
2001:df6:a5c0::/48	65.5k × /64	APNIC	ID	29th Jan 2026
2001:df6:a600::/48	65.5k × /64	APNIC	IN	18th Nov 2016
2001:df6:a640::/48	65.5k × /64	APNIC	IN	29th Jan 2026
2001:df6:a740::/48	65.5k × /64	APNIC	ID	29th Jan 2026
2001:df6:a780::/48	65.5k × /64	APNIC	HK	17th May 2021
2001:df6:a7c0::/48	65.5k × /64	APNIC	ID	30th Jan 2026
2001:df6:a80::/48	65.5k × /64	APNIC	PK	21st Feb 2021
2001:df6:a880::/48	65.5k × /64	APNIC	PG	17th May 2021