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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through APNIC, largest first.

Unannounced blocks registered through APNIC

22,580 blocks match, ordered by prefix.

Allocated but unannounced blocks, 17251 to 17300 of 22580
Prefix	Addresses	Registry	Country	Allocated
2401:bb00::/32	4.3B × /64	APNIC	IN	18th Aug 2011
2401:bb20::/32	4.3B × /64	APNIC	CN	14th Aug 2024
2401:bb40::/32	4.3B × /64	APNIC	ID	6th Sept 2017
2401:bb60::/32	4.3B × /64	APNIC	IN	14th Aug 2024
2401:bc0::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:bc60::/31	8.6B × /64	APNIC	CN	15th Aug 2024
2401:bc80::/32	4.3B × /64	APNIC	MM	12th Nov 2014
2401:bce0::/32	4.3B × /64	APNIC	PK	16th Aug 2024
2401:bd20::/32	4.3B × /64	APNIC	IN	16th Aug 2024
2401:bda0::/32	4.3B × /64	APNIC	CN	19th Aug 2024
2401:be60::/32	4.3B × /64	APNIC	PK	21st Aug 2024
2401:bea0::/32	4.3B × /64	APNIC	NZ	26th Aug 2024
2401:bec0::/32	4.3B × /64	APNIC	HK	9th Sept 2017
2401:bee0::/32	4.3B × /64	APNIC	BD	26th Aug 2024
2401:bf20::/32	4.3B × /64	APNIC	CN	27th Aug 2024
2401:bfa0::/32	4.3B × /64	APNIC	MY	30th Aug 2024
2401:bfc0::/32	4.3B × /64	APNIC	ID	11th Sept 2017
2401:c0::/32	4.3B × /64	APNIC	HK	21st Apr 2017
2401:c0a0::/32	4.3B × /64	APNIC	MY	3rd Sept 2024
2401:c0c0::/32	4.3B × /64	APNIC	HK	11th Sept 2017
2401:c160::/32	4.3B × /64	APNIC	PK	6th Sept 2024
2401:c1a0::/32	4.3B × /64	APNIC	JP	9th Sept 2024
2401:c1c0::/32	4.3B × /64	APNIC	AU	12th Sept 2017
2401:c1e0::/32	4.3B × /64	APNIC	ID	11th Sept 2024
2401:c200::/32	4.3B × /64	APNIC	CN	23rd Apr 2010
2401:c280::/32	4.3B × /64	APNIC	IN	21st Nov 2014
2401:c2c0::/32	4.3B × /64	APNIC	AU	12th Sept 2017
2401:c320::/32	4.3B × /64	APNIC	IN	13th Sept 2024
2401:c360::/32	4.3B × /64	APNIC	IN	13th Sept 2024
2401:c3a0::/32	4.3B × /64	APNIC	IN	13th Sept 2024
2401:c40::/32	4.3B × /64	APNIC	CN	28th Apr 2017
2401:c480::/32	4.3B × /64	APNIC	HK	22nd Nov 2014
2401:c540::/32	4.3B × /64	APNIC	CN	13th Sept 2017
2401:c560::/32	4.3B × /64	APNIC	IN	19th Sept 2024
2401:c600::/32	4.3B × /64	APNIC	CN	23rd Apr 2010
2401:c620::/32	4.3B × /64	APNIC	TW	23rd Sept 2024
2401:c640::/32	4.3B × /64	APNIC	CN	14th Sept 2017
2401:c6a0::/32	4.3B × /64	APNIC	BD	23rd Sept 2024
2401:c6c0::/32	4.3B × /64	APNIC	CN	14th Sept 2017
2401:c6e0::/32	4.3B × /64	APNIC	AU	24th Sept 2024
2401:c760::/32	4.3B × /64	APNIC	VN	25th Sept 2024
2401:c780::/32	4.3B × /64	APNIC	AU	24th Nov 2014
2401:c80::/32	4.3B × /64	APNIC	NZ	4th Jun 2014
2401:c840::/32	4.3B × /64	APNIC	CN	14th Sept 2017
2401:c860::/32	4.3B × /64	APNIC	PH	27th Sept 2024
2401:c8c0::/32	4.3B × /64	APNIC	CN	14th Sept 2017
2401:c901::/32	4.3B × /64	APNIC	SG	20th Nov 2013
2401:c920::/32	4.3B × /64	APNIC	NZ	2nd Oct 2024
2401:c940::/32	4.3B × /64	APNIC	ID	14th Sept 2017
2401:c9a0::/32	4.3B × /64	APNIC	AU	4th Oct 2024