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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 in India

2,802 blocks match, ordered by prefix.

Allocated but unannounced blocks, 2201 to 2250 of 2802
Prefix	Addresses	Registry	Country	Allocated
2400:ffe0::/32	4.3B × /64	APNIC	IN	18th May 2023
2401:12a0::/32	4.3B × /64	APNIC	IN	3rd Jul 2023
2401:1360::/32	4.3B × /64	APNIC	IN	4th Jul 2023
2401:15e0::/32	4.3B × /64	APNIC	IN	10th Jul 2023
2401:1a00::/32	4.3B × /64	APNIC	IN	29th Mar 2010
2401:1e0::/32	4.3B × /64	APNIC	IN	22nd May 2023
2401:1ee0::/32	4.3B × /64	APNIC	IN	1st Aug 2023
2401:21a0::/32	4.3B × /64	APNIC	IN	7th Aug 2023
2401:2560::/32	4.3B × /64	APNIC	IN	12th Aug 2023
2401:27a0::/32	4.3B × /64	APNIC	IN	17th Aug 2023
2401:27e0::/32	4.3B × /64	APNIC	IN	17th Aug 2023
2401:2820::/32	4.3B × /64	APNIC	IN	17th Aug 2023
2401:2ba0::/32	4.3B × /64	APNIC	IN	24th Aug 2023
2401:2c60::/32	4.3B × /64	APNIC	IN	25th Aug 2023
2401:2d80::/32	4.3B × /64	APNIC	IN	8th Jul 2014
2401:2da0::/32	4.3B × /64	APNIC	IN	29th Aug 2023
2401:2fe0::/32	4.3B × /64	APNIC	IN	5th Sept 2023
2401:320::/32	4.3B × /64	APNIC	IN	24th May 2023
2401:3860::/32	4.3B × /64	APNIC	IN	12th Sept 2023
2401:3ce0::/32	4.3B × /64	APNIC	IN	26th Sept 2023
2401:3fe0::/32	4.3B × /64	APNIC	IN	29th Sept 2023
2401:420::/32	4.3B × /64	APNIC	IN	26th May 2023
2401:46e0::/32	4.3B × /64	APNIC	IN	16th Oct 2023
2401:4700::/32	4.3B × /64	APNIC	IN	23rd Jun 2011
2401:4800::/32	4.3B × /64	APNIC	IN	20th May 2008
2401:4a20::/32	4.3B × /64	APNIC	IN	24th Oct 2023
2401:4aa0::/32	4.3B × /64	APNIC	IN	25th Oct 2023
2401:4f40::/32	4.3B × /64	APNIC	IN	9th Jun 2017
2401:5140::/32	4.3B × /64	APNIC	IN	12th Jun 2017
2401:5160::/32	4.3B × /64	APNIC	IN	17th Nov 2023
2401:54a0::/32	4.3B × /64	APNIC	IN	28th Nov 2023
2401:54e0::/32	4.3B × /64	APNIC	IN	28th Nov 2023
2401:5a80::/32	4.3B × /64	APNIC	IN	13th Aug 2014
2401:5fe0::/32	4.3B × /64	APNIC	IN	29th Dec 2023
2401:7020::/32	4.3B × /64	APNIC	IN	1st Jan 2024
2401:73e0::/32	4.3B × /64	APNIC	IN	10th Jan 2024
2401:76c0::/32	4.3B × /64	APNIC	IN	4th Jul 2017
2401:7720::/32	4.3B × /64	APNIC	IN	17th Jan 2024
2401:7da0::/32	4.3B × /64	APNIC	IN	6th Feb 2024
2401:7fe0::/32	4.3B × /64	APNIC	IN	13th Feb 2024
2401:80c0::/32	4.3B × /64	APNIC	IN	12th Jul 2017
2401:8120::/32	4.3B × /64	APNIC	IN	19th Feb 2024
2401:87a0::/32	4.3B × /64	APNIC	IN	11th Mar 2024
2401:8a60::/32	4.3B × /64	APNIC	IN	15th Mar 2024
2401:8ea0::/32	4.3B × /64	APNIC	IN	28th Mar 2024
2401:9020::/32	4.3B × /64	APNIC	IN	3rd Apr 2024
2401:9120::/32	4.3B × /64	APNIC	IN	4th Apr 2024
2401:93a0::/32	4.3B × /64	APNIC	IN	12th Apr 2024
2401:94e0::/32	4.3B × /64	APNIC	IN	16th Apr 2024
2401:960::/32	4.3B × /64	APNIC	IN	12th Jun 2023