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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,424 blocks match, ordered by prefix.

Allocated but unannounced blocks, 57201 to 57250 of 84424
Prefix	Addresses	Registry	Country	Allocated
2406:f280::/32	4.3B × /64	APNIC	CN	25th Aug 2016
2406:f2c0::/32	4.3B × /64	APNIC	TW	25th Dec 2020
2406:f300::/32	4.3B × /64	APNIC	CN	14th May 2013
2406:f340::/32	4.3B × /64	APNIC	TW	25th Dec 2020
2406:f440::/32	4.3B × /64	APNIC	IN	26th Dec 2020
2406:f4c0::/32	4.3B × /64	APNIC	CN	28th Dec 2020
2406:f500::/32	4.3B × /64	APNIC	PK	16th May 2013
2406:f540::/32	4.3B × /64	APNIC	TW	28th Dec 2020
2406:f580::/32	4.3B × /64	APNIC	PK	29th Aug 2016
2406:f5c0::/32	4.3B × /64	APNIC	TW	29th Dec 2020
2406:f600::/32	4.3B × /64	APNIC	NZ	11th Feb 2011
2406:f780::/32	4.3B × /64	APNIC	AU	29th Aug 2016
2406:f7c0::/32	4.3B × /64	APNIC	CN	29th Dec 2020
2406:f80::/32	4.3B × /64	APNIC	CN	29th Jul 2016
2406:f840::/32	4.3B × /64	APNIC	VN	29th Dec 2020
2406:f980::/32	4.3B × /64	APNIC	CN	29th Aug 2016
2406:fa00::/32	4.3B × /64	APNIC	AU	11th Feb 2011
2406:fa40::/32	4.3B × /64	APNIC	VN	30th Dec 2020
2406:fa80::/32	4.3B × /64	APNIC	NZ	30th Aug 2016
2406:fac0::/32	4.3B × /64	APNIC	IN	31st Dec 2020
2406:fb00::/32	4.3B × /64	APNIC	HK	21st May 2013
2406:fb80::/32	4.3B × /64	APNIC	HK	30th Aug 2016
2406:fbc0::/32	4.3B × /64	APNIC	IN	4th Jan 2021
2406:fc40::/32	4.3B × /64	APNIC	IN	4th Jan 2021
2406:fc80::/32	4.3B × /64	APNIC	CN	30th Aug 2016
2406:fcc0::/32	4.3B × /64	APNIC	TW	5th Jan 2021
2406:fd40::/32	4.3B × /64	APNIC	JP	6th Jan 2021
2406:fd80::/32	4.3B × /64	APNIC	CN	30th Aug 2016
2406:fdc0::/32	4.3B × /64	APNIC	TW	6th Jan 2021
2406:fe40::/32	4.3B × /64	APNIC	VN	6th Jan 2021
2406:fe80::/32	4.3B × /64	APNIC	CN	31st Aug 2016
2406:fec0::/32	4.3B × /64	APNIC	ID	7th Jan 2021
2406:ff00::/32	4.3B × /64	APNIC	CN	22nd May 2013
2406:ff40::/32	4.3B × /64	APNIC	VN	7th Jan 2021
2406:ff80::/32	4.3B × /64	APNIC	BD	1st Sept 2016
2407:1040::/32	4.3B × /64	APNIC	BD	28th Jan 2021
2407:1080::/32	4.3B × /64	APNIC	HK	1st Sept 2016
2407:10c0::/32	4.3B × /64	APNIC	IN	28th Jan 2021
2407:1280::/32	4.3B × /64	APNIC	PK	1st Sept 2016
2407:12c0::/32	4.3B × /64	APNIC	IN	29th Jan 2021
2407:1340::/32	4.3B × /64	APNIC	IN	29th Jan 2021
2407:1380::/32	4.3B × /64	APNIC	HK	1st Sept 2016
2407:13c0::/32	4.3B × /64	APNIC	IN	29th Jan 2021
2407:140::/32	4.3B × /64	APNIC	VN	8th Jan 2021
2407:1440::/32	4.3B × /64	APNIC	TW	1st Feb 2021
2407:1480::/32	4.3B × /64	APNIC	MY	2nd Sept 2016
2407:1540::/32	4.3B × /64	APNIC	HK	2nd Feb 2021
2407:15c0::/32	4.3B × /64	APNIC	PK	2nd Feb 2021
2407:1640::/32	4.3B × /64	APNIC	VN	2nd Feb 2021
2407:16c0::/32	4.3B × /64	APNIC	VN	3rd Feb 2021