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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 53301 to 53350 of 85346
Prefix	Addresses	Registry	Country	Allocated
2400:6c80::/32	4.3B × /64	APNIC	HK	5th Dec 2013
2400:6ca0::/32	4.3B × /64	APNIC	VN	7th Apr 2022
2400:6cc0::/32	4.3B × /64	APNIC	CN	10th Dec 2016
2400:6d40::/32	4.3B × /64	APNIC	CN	10th Dec 2016
2400:6d60::/32	4.3B × /64	APNIC	HK	8th Apr 2022
2400:6d80::/32	4.3B × /64	APNIC	AU	6th Dec 2013
2400:6da0::/32	4.3B × /64	APNIC	CN	8th Apr 2022
2400:6dc0::/32	4.3B × /64	APNIC	CN	10th Dec 2016
2400:6de0::/32	4.3B × /64	APNIC	IN	8th Apr 2022
2400:6e00::/32	4.3B × /64	APNIC	CN	16th Mar 2010
2400:6e20::/32	4.3B × /64	APNIC	BD	10th Apr 2022
2400:6e40::/32	4.3B × /64	APNIC	CN	10th Dec 2016
2400:6ec0::/32	4.3B × /64	APNIC	CN	10th Dec 2016
2400:6f40::/32	4.3B × /64	APNIC	CN	10th Dec 2016
2400:6f60::/32	4.3B × /64	APNIC	VN	15th Apr 2022
2400:6f80::/32	4.3B × /64	APNIC	CN	9th Dec 2013
2400:6fa0::/32	4.3B × /64	APNIC	MM	19th Apr 2022
2400:6fc0::/32	4.3B × /64	APNIC	CN	10th Dec 2016
2400:6fe0::/32	4.3B × /64	APNIC	PH	19th Apr 2022
2400:7000::/32	4.3B × /64	APNIC	TW	7th Jan 2009
2400:7020::/32	4.3B × /64	APNIC	ID	19th Apr 2022
2400:7040::/32	4.3B × /64	APNIC	CN	10th Dec 2016
2400:7080::/32	4.3B × /64	APNIC	NP	10th Dec 2013
2400:70a0::/32	4.3B × /64	APNIC	CN	19th Apr 2022
2400:7140::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:71c0::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:71e0::/32	4.3B × /64	APNIC	PH	20th Apr 2022
2400:7200::/32	4.3B × /64	APNIC	CN	16th Mar 2010
2400:7220::/32	4.3B × /64	APNIC	IN	20th Apr 2022
2400:7240::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:72c0::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:7300::/32	4.3B × /64	APNIC	HK	19th Apr 2011
2400:7340::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:7380::/32	4.3B × /64	APNIC	NZ	11th Dec 2013
2400:73c0::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:7440::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:7460::/32	4.3B × /64	APNIC	HK	26th Apr 2022
2400:7480::/32	4.3B × /64	APNIC	MN	11th Dec 2013
2400:74a0::/32	4.3B × /64	APNIC	HK	26th Apr 2022
2400:74c0::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:7500::/32	4.3B × /64	APNIC	ID	20th Apr 2011
2400:7540::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:7560::/32	4.3B × /64	APNIC	BD	29th Apr 2022
2400:75c0::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:75e0::/32	4.3B × /64	APNIC	BD	3rd May 2022
2400:7600::/32	4.3B × /64	APNIC	AU	16th Mar 2010
2400:7620::/32	4.3B × /64	APNIC	MM	3rd May 2022
2400:7640::/32	4.3B × /64	APNIC	CN	12th Dec 2016
2400:7680::/32	4.3B × /64	APNIC	CN	12th Dec 2013
2400:76c0::/32	4.3B × /64	APNIC	CN	12th Dec 2016