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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

6,735 blocks match, ordered by prefix.

Allocated but unannounced blocks, 4351 to 4400 of 6735
Prefix	Addresses	Registry	Country	Allocated
2401:95e0::/32	4.3B × /64	APNIC	CN	18th Apr 2024
2401:9600::/32	4.3B × /64	APNIC	CN	15th Apr 2010
2401:96c0::/32	4.3B × /64	APNIC	CN	3rd Aug 2017
2401:96e0::/32	4.3B × /64	APNIC	CN	22nd Apr 2024
2401:9720::/32	4.3B × /64	APNIC	CN	23rd Apr 2024
2401:9740::/32	4.3B × /64	APNIC	CN	3rd Aug 2017
2401:97a0::/32	4.3B × /64	APNIC	CN	24th Apr 2024
2401:98c0::/32	4.3B × /64	APNIC	CN	7th Aug 2017
2401:9ac0::/32	4.3B × /64	APNIC	CN	8th Aug 2017
2401:9b20::/31	8.6B × /64	APNIC	CN	7th May 2024
2401:9b40::/32	4.3B × /64	APNIC	CN	8th Aug 2017
2401:9b60::/32	4.3B × /64	APNIC	CN	7th May 2024
2401:9bc0::/32	4.3B × /64	APNIC	CN	8th Aug 2017
2401:9c0::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:9ca0::/32	4.3B × /64	APNIC	CN	9th May 2024
2401:9d20::/32	4.3B × /64	APNIC	CN	10th May 2024
2401:9dc0::/32	4.3B × /64	APNIC	CN	11th Aug 2017
2401:9e20::/32	4.3B × /64	APNIC	CN	11th May 2024
2401:9e40::/32	4.3B × /64	APNIC	CN	11th Aug 2017
2401:9f80::/32	4.3B × /64	APNIC	CN	30th Sept 2014
2401:9fa0::/32	4.3B × /64	APNIC	CN	16th May 2024
2401:a00::/32	4.3B × /64	APNIC	CN	15th Jun 2010
2401:a2e0::/32	4.3B × /64	APNIC	CN	24th May 2024
2401:a340::/32	4.3B × /64	APNIC	CN	16th Aug 2017
2401:a3a0::/32	4.3B × /64	APNIC	CN	3rd Jun 2024
2401:a3c0::/32	4.3B × /64	APNIC	CN	16th Aug 2017
2401:a40::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:a4c0::/32	4.3B × /64	APNIC	CN	17th Aug 2017
2401:a4e0::/32	4.3B × /64	APNIC	CN	6th Jun 2024
2401:a540::/32	4.3B × /64	APNIC	CN	17th Aug 2017
2401:a5c0::/32	4.3B × /64	APNIC	CN	17th Aug 2017
2401:a620::/32	4.3B × /64	APNIC	CN	12th Jun 2024
2401:a640::/32	4.3B × /64	APNIC	CN	17th Aug 2017
2401:a6e0::/32	4.3B × /64	APNIC	CN	14th Jun 2024
2401:a720::/32	4.3B × /64	APNIC	CN	14th Jun 2024
2401:a940::/32	4.3B × /64	APNIC	CN	21st Aug 2017
2401:a980::/32	4.3B × /64	APNIC	CN	13th Oct 2014
2401:a9a0::/32	4.3B × /64	APNIC	CN	24th Jun 2024
2401:aa00::/32	4.3B × /64	APNIC	CN	20th Apr 2010
2401:aa20::/32	4.3B × /64	APNIC	CN	25th Jun 2024
2401:aa40::/32	4.3B × /64	APNIC	CN	21st Aug 2017
2401:ab60::/32	4.3B × /64	APNIC	CN	27th Jun 2024
2401:aba0::/32	4.3B × /64	APNIC	CN	27th Jun 2024
2401:ac0::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:acc0::/32	4.3B × /64	APNIC	CN	23rd Aug 2017
2401:ad40::/32	4.3B × /64	APNIC	CN	24th Aug 2017
2401:adc0::/32	4.3B × /64	APNIC	CN	24th Aug 2017
2401:afa0::/32	4.3B × /64	APNIC	CN	4th Jul 2024
2401:b040::/32	4.3B × /64	APNIC	CN	25th Aug 2017
2401:b220::/32	4.3B × /64	APNIC	CN	11th Jul 2024