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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,310 blocks match, ordered by prefix.

Allocated but unannounced blocks, 54351 to 54400 of 85310
Prefix	Addresses	Registry	Country	Allocated
2401:9be0::/32	4.3B × /64	APNIC	VN	8th May 2024
2401:9c0::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:9c40::/32	4.3B × /64	APNIC	VN	8th Aug 2017
2401:9c60::/32	4.3B × /64	APNIC	AU	9th May 2024
2401:9c80::/32	4.3B × /64	APNIC	HK	29th Sept 2014
2401:9ca0::/32	4.3B × /64	APNIC	CN	9th May 2024
2401:9d20::/32	4.3B × /64	APNIC	CN	10th May 2024
2401:9d60::/32	4.3B × /64	APNIC	NZ	10th May 2024
2401:9d80::/32	4.3B × /64	APNIC	HK	30th Sept 2014
2401:9dc0::/32	4.3B × /64	APNIC	CN	11th Aug 2017
2401:9de0::/32	4.3B × /64	APNIC	IN	10th May 2024
2401:9e20::/32	4.3B × /64	APNIC	CN	11th May 2024
2401:9e40::/32	4.3B × /64	APNIC	CN	11th Aug 2017
2401:9e60::/32	4.3B × /64	APNIC	TW	14th May 2024
2401:9e80::/32	4.3B × /64	APNIC	ID	30th Sept 2014
2401:9ea0::/32	4.3B × /64	APNIC	VN	14th May 2024
2401:9ec0::/32	4.3B × /64	APNIC	KR	11th Aug 2017
2401:9ee0::/32	4.3B × /64	APNIC	VN	14th May 2024
2401:9f60::/32	4.3B × /64	APNIC	VN	15th May 2024
2401:9f80::/32	4.3B × /64	APNIC	CN	30th Sept 2014
2401:9fa0::/32	4.3B × /64	APNIC	CN	16th May 2024
2401:9fe0::/32	4.3B × /64	APNIC	JP	17th May 2024
2401:a000::/32	4.3B × /64	APNIC	KR	31st Jul 2007
2401:a00::/32	4.3B × /64	APNIC	CN	15th Jun 2010
2401:a080::/32	4.3B × /64	APNIC	HK	1st Oct 2014
2401:a0::/32	4.3B × /64	APNIC	MM	19th May 2023
2401:a120::/32	4.3B × /64	APNIC	MY	21st May 2024
2401:a160::/32	4.3B × /64	APNIC	PH	22nd May 2024
2401:a1c0::/32	4.3B × /64	APNIC	JP	15th Aug 2017
2401:a1e0::/32	4.3B × /64	APNIC	AU	24th May 2024
2401:a20::/32	4.3B × /64	APNIC	BD	12th Jun 2023
2401:a220::/32	4.3B × /64	APNIC	BD	24th May 2024
2401:a2c0::/32	4.3B × /64	APNIC	BD	16th Aug 2017
2401:a2e0::/32	4.3B × /64	APNIC	CN	24th May 2024
2401:a300::/32	4.3B × /64	APNIC	ID	3rd Aug 2011
2401:a320::/32	4.3B × /64	APNIC	ID	29th May 2024
2401:a340::/32	4.3B × /64	APNIC	CN	16th Aug 2017
2401:a380::/32	4.3B × /64	APNIC	JP	6th Oct 2014
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:a440::/32	4.3B × /64	APNIC	IO	16th Aug 2017
2401:a4c0::/32	4.3B × /64	APNIC	CN	17th Aug 2017
2401:a4e0::/32	4.3B × /64	APNIC	CN	6th Jun 2024
2401:a500::/32	4.3B × /64	APNIC	JP	4th Aug 2011
2401:a520::/32	4.3B × /64	APNIC	IN	6th Jun 2024
2401:a540::/32	4.3B × /64	APNIC	CN	17th Aug 2017
2401:a560::/32	4.3B × /64	APNIC	US	6th Jun 2024
2401:a5a0::/32	4.3B × /64	APNIC	BD	10th Jun 2024
2401:a5c0::/32	4.3B × /64	APNIC	CN	17th Aug 2017