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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks

85,458 blocks match, ordered by prefix.

Allocated but unannounced blocks, 41801 to 41850 of 85458
Prefix	Addresses	Registry	Country	Allocated
2001:df6:25c0::/48	65.5k × /64	APNIC	PH	23rd Sept 2025
2001:df6:2680::/48	65.5k × /64	APNIC	HK	4th Mar 2021
2001:df6:26c0::/48	65.5k × /64	APNIC	BD	26th Sept 2025
2001:df6:2700::/48	65.5k × /64	APNIC	ID	9th Aug 2018
2001:df6:2740::/48	65.5k × /64	APNIC	BD	29th Sept 2025
2001:df6:27c0::/48	65.5k × /64	APNIC	AU	29th Sept 2025
2001:df6:2840::/48	65.5k × /64	APNIC	NP	29th Sept 2025
2001:df6:2880::/48	65.5k × /64	APNIC	VN	4th Mar 2021
2001:df6:2900::/48	65.5k × /64	APNIC	ID	10th Aug 2018
2001:df6:2980::/48	65.5k × /64	APNIC	NL	4th Mar 2021
2001:df6:29c0::/48	65.5k × /64	APNIC	NP	30th Sept 2025
2001:df6:2a00::/48	65.5k × /64	APNIC	ID	1st Nov 2016
2001:df6:2ac0::/48	65.5k × /64	APNIC	ID	1st Oct 2025
2001:df6:2b00::/48	65.5k × /64	APNIC	ID	10th Aug 2018
2001:df6:2b40::/48	65.5k × /64	APNIC	IN	1st Oct 2025
2001:df6:2b80::/48	65.5k × /64	APNIC	IN	4th Mar 2021
2001:df6:2bc0::/48	65.5k × /64	APNIC	IN	2nd Oct 2025
2001:df6:2c00::/48	65.5k × /64	APNIC	VN	15th Sept 2015
2001:df6:2c0::/48	65.5k × /64	APNIC	MM	20th Aug 2025
2001:df6:2c40::/48	65.5k × /64	APNIC	SG	2nd Oct 2025
2001:df6:2c80::/48	65.5k × /64	APNIC	JP	4th Mar 2021
2001:df6:2cc0::/48	65.5k × /64	APNIC	BD	5th Oct 2025
2001:df6:2d00::/48	65.5k × /64	APNIC	TH	13th Aug 2018
2001:df6:2d40::/48	65.5k × /64	APNIC	BD	6th Oct 2025
2001:df6:2dc0::/48	65.5k × /64	APNIC	IN	6th Oct 2025
2001:df6:2e00::/48	65.5k × /64	APNIC	ID	1st Nov 2016
2001:df6:2e40::/48	65.5k × /64	APNIC	ID	7th Oct 2025
2001:df6:2ec0::/48	65.5k × /64	APNIC	PH	7th Oct 2025
2001:df6:2f40::/48	65.5k × /64	APNIC	BD	7th Oct 2025
2001:df6:2f80::/48	65.5k × /64	APNIC	IN	5th Mar 2021
2001:df6:2fc0::/48	65.5k × /64	APNIC	ID	8th Oct 2025
2001:df6:3000::/48	65.5k × /64	APNIC	NZ	22nd Oct 2013
2001:df6:3040::/48	65.5k × /64	APNIC	PH	8th Oct 2025
2001:df6:30c0::/48	65.5k × /64	APNIC	IN	8th Oct 2025
2001:df6:3100::/48	65.5k × /64	APNIC	TH	14th Aug 2018
2001:df6:3200::/48	65.5k × /64	APNIC	ID	2nd Nov 2016
2001:df6:3240::/48	65.5k × /64	APNIC	PH	9th Oct 2025
2001:df6:3280::/48	65.5k × /64	APNIC	IN	8th Mar 2021
2001:df6:32c0::/48	65.5k × /64	APNIC	MN	9th Oct 2025
2001:df6:33c0::/48	65.5k × /64	APNIC	IN	11th Oct 2025
2001:df6:3400::/48	65.5k × /64	APNIC	VN	15th Sept 2015
2001:df6:340::/48	65.5k × /64	APNIC	IN	20th Aug 2025
2001:df6:3440::/46	262k × /64	APNIC	BD	13th Oct 2025
2001:df6:34c0::/48	65.5k × /64	APNIC	JP	13th Oct 2025
2001:df6:3500::/48	65.5k × /64	APNIC	ID	15th Aug 2018
2001:df6:3580::/48	65.5k × /64	APNIC	PK	9th Mar 2021
2001:df6:35c0::/48	65.5k × /64	APNIC	ID	15th Oct 2025
2001:df6:3640::/48	65.5k × /64	APNIC	ID	15th Oct 2025
2001:df6:3680::/48	65.5k × /64	APNIC	IN	10th Mar 2021
2001:df6:3740::/48	65.5k × /64	APNIC	ID	16th Oct 2025