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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Browse by registry

Browse by country

Countries with the most unannounced blocks, largest first.

Unannounced blocks

85,285 blocks match, ordered by prefix.

Allocated but unannounced blocks, 57001 to 57050 of 85285
Prefix	Addresses	Registry	Country	Allocated
2405:f4c0::/32	4.3B × /64	APNIC	VN	30th Mar 2020
2405:f500::/32	4.3B × /64	APNIC	KH	18th Dec 2012
2405:f5c0::/32	4.3B × /64	APNIC	VN	30th Mar 2020
2405:f640::/32	4.3B × /64	APNIC	ID	31st Mar 2020
2405:f6c0::/32	4.3B × /64	APNIC	CN	31st Mar 2020
2405:f700::/32	4.3B × /64	APNIC	IN	18th Dec 2012
2405:f780::/32	4.3B × /64	APNIC	MY	19th Jul 2016
2405:f7c0::/32	4.3B × /64	APNIC	ID	1st Apr 2020
2405:f80::/32	4.3B × /64	APNIC	CN	9th May 2016
2405:f840::/32	4.3B × /64	APNIC	ID	1st Apr 2020
2405:f880::/32	4.3B × /64	APNIC	NP	19th Jul 2016
2405:f8c0::/32	4.3B × /64	APNIC	ID	1st Apr 2020
2405:f900::/32	4.3B × /64	APNIC	NZ	20th Dec 2012
2405:f9c0::/32	4.3B × /64	APNIC	US	3rd Apr 2020
2405:fa00::/32	4.3B × /64	APNIC	KH	4th Jan 2011
2405:fac0::/32	4.3B × /64	APNIC	ID	3rd Apr 2020
2405:fb80::/32	4.3B × /64	APNIC	GB	20th Jul 2016
2405:fbc0::/32	4.3B × /64	APNIC	TW	6th Apr 2020
2405:fc0::/32	4.3B × /64	APNIC	ID	16th Jul 2019
2405:fc40::/32	4.3B × /64	APNIC	HK	7th Apr 2020
2405:fcc0::/32	4.3B × /64	APNIC	HK	7th Apr 2020
2405:fdc0::/32	4.3B × /64	APNIC	CN	9th Apr 2020
2405:fe00::/32	4.3B × /64	APNIC	PH	4th Jan 2011
2405:ff40::/32	4.3B × /64	APNIC	SG	15th Apr 2020
2406:1040::/32	4.3B × /64	APNIC	HK	30th Apr 2020
2406:10c0::/32	4.3B × /64	APNIC	IN	30th Apr 2020
2406:1100::/32	4.3B × /64	APNIC	CN	16th Jan 2013
2406:1180::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:11c0::/32	4.3B × /64	APNIC	AU	1st May 2020
2406:1240::/32	4.3B × /64	APNIC	ID	4th May 2020
2406:1280::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:1380::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:1480::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:1580::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:15c0::/32	4.3B × /64	APNIC	CN	9th May 2020
2406:1680::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:1700::/32	4.3B × /64	APNIC	NZ	21st Jan 2013
2406:1740::/32	4.3B × /64	APNIC	TW	13th May 2020
2406:1780::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:1880::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:1980::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:19c0::/32	4.3B × /64	APNIC	KH	19th May 2020
2406:1a40::/32	4.3B × /64	APNIC	VN	19th May 2020
2406:1a80::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:1ac0::/32	4.3B × /64	APNIC	KR	19th May 2020
2406:1b80::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:1bc0::/32	4.3B × /64	APNIC	MM	23rd May 2020
2406:1c00::/32	4.3B × /64	APNIC	AU	15th Feb 2010
2406:1c0::/32	4.3B × /64	APNIC	JP	15th Apr 2020
2406:1c40::/32	4.3B × /64	APNIC	MM	23rd May 2020