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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,285 blocks match, ordered by prefix.

Allocated but unannounced blocks, 57201 to 57250 of 85285
Prefix	Addresses	Registry	Country	Allocated
2406:5a40::/32	4.3B × /64	APNIC	CN	14th Aug 2020
2406:5a80::/32	4.3B × /64	APNIC	AU	8th Aug 2016
2406:5ac0::/32	4.3B × /64	APNIC	CN	14th Aug 2020
2406:5b00::/32	4.3B × /64	APNIC	MY	6th Mar 2013
2406:5b40::/32	4.3B × /64	APNIC	CN	14th Aug 2020
2406:5bc0::/32	4.3B × /64	APNIC	ID	14th Aug 2020
2406:5c00::/32	4.3B × /64	APNIC	ID	16th Feb 2010
2406:5d00::/32	4.3B × /64	APNIC	AU	6th Mar 2013
2406:5d80::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:5e00::/32	4.3B × /64	APNIC	AU	18th Jan 2011
2406:5e40::/32	4.3B × /64	APNIC	SG	18th Aug 2020
2406:5e80::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:5f00::/32	4.3B × /64	APNIC	AU	6th Mar 2013
2406:5f40::/32	4.3B × /64	APNIC	VN	20th Aug 2020
2406:5f80::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:5fc0::/32	4.3B × /64	APNIC	IN	20th Aug 2020
2406:6000::/32	4.3B × /64	APNIC	MY	9th Aug 2007
2406:6080::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:60c0::/32	4.3B × /64	APNIC	MY	24th Aug 2020
2406:6180::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:61c0::/30	17.2B × /64	APNIC	CN	24th Aug 2020
2406:61c4::/30	17.2B × /64	APNIC	CN	10th Nov 2021
2406:6240::/32	4.3B × /64	APNIC	NP	25th Aug 2020
2406:6280::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:62c0::/32	4.3B × /64	APNIC	ID	25th Aug 2020
2406:6300::/32	4.3B × /64	APNIC	CN	8th Mar 2013
2406:6340::/32	4.3B × /64	APNIC	CN	26th Aug 2020
2406:6380::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:63c0::/32	4.3B × /64	APNIC	JP	26th Aug 2020
2406:6400::/32	4.3B × /64	APNIC	AU	16th Feb 2010
2406:6440::/32	4.3B × /64	APNIC	IN	27th Aug 2020
2406:6480::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:6500::/32	4.3B × /64	APNIC	CN	8th Mar 2013
2406:6540::/32	4.3B × /64	APNIC	ID	28th Aug 2020
2406:6580::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:65c0::/32	4.3B × /64	APNIC	CN	31st Aug 2020
2406:6600::/32	4.3B × /64	APNIC	KR	20th Jan 2011
2406:6640::/32	4.3B × /64	APNIC	CN	31st Aug 2020
2406:6680::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:6780::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:6800::/32	4.3B × /64	APNIC	KR	1st Apr 2009
2406:6880::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:68c0::/32	4.3B × /64	APNIC	IN	1st Sept 2020
2406:6900::/32	4.3B × /64	APNIC	AU	11th Mar 2013
2406:6980::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:6a00::/32	4.3B × /64	APNIC	KR	21st Jan 2011
2406:6a40::/32	4.3B × /64	APNIC	PH	3rd Sept 2020
2406:6a80::/32	4.3B × /64	APNIC	CN	8th Aug 2016
2406:6ac0::/32	4.3B × /64	APNIC	IN	3rd Sept 2020
2406:6b00::/32	4.3B × /64	APNIC	ID	11th Mar 2013