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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 57151 to 57200 of 85285
Prefix	Addresses	Registry	Country	Allocated
2406:440::/32	4.3B × /64	APNIC	CN	16th Apr 2020
2406:4480::/32	4.3B × /64	APNIC	CN	3rd Aug 2016
2406:44c0::/32	4.3B × /64	APNIC	ID	20th Jul 2020
2406:4500::/32	4.3B × /64	APNIC	CN	25th Feb 2013
2406:4600::/32	4.3B × /64	APNIC	AU	14th Jan 2011
2406:4680::/32	4.3B × /64	APNIC	CN	4th Aug 2016
2406:4740::/32	4.3B × /64	APNIC	BD	22nd Jul 2020
2406:4800::/32	4.3B × /64	APNIC	SG	30th Mar 2009
2406:4840::/32	4.3B × /64	APNIC	BD	22nd Jul 2020
2406:49c0::/32	4.3B × /64	APNIC	ID	24th Jul 2020
2406:4a40::/32	4.3B × /64	APNIC	NP	27th Jul 2020
2406:4a80::/32	4.3B × /64	APNIC	NO	5th Aug 2016
2406:4b40::/32	4.3B × /64	APNIC	AU	28th Jul 2020
2406:4b80::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:4c0::/32	4.3B × /64	APNIC	CN	17th Apr 2020
2406:4c40::/32	4.3B × /64	APNIC	VN	28th Jul 2020
2406:4c80::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:4cc0::/32	4.3B × /64	APNIC	VN	28th Jul 2020
2406:4d80::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:4dc0::/32	4.3B × /64	APNIC	NZ	29th Jul 2020
2406:4e00::/32	4.3B × /64	APNIC	NZ	17th Jan 2011
2406:4e80::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:4f00::/32	4.3B × /64	APNIC	CN	28th Feb 2013
2406:4f80::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:500::/32	4.3B × /64	APNIC	JP	4th Jan 2013
2406:5040::/32	4.3B × /64	APNIC	BD	3rd Aug 2020
2406:5080::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:50c0::/32	4.3B × /64	APNIC	CN	3rd Aug 2020
2406:5100::/32	4.3B × /64	APNIC	AU	28th Feb 2013
2406:5180::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5200::/32	4.3B × /64	APNIC	JP	17th Jan 2011
2406:5240::/32	4.3B × /64	APNIC	ID	4th Aug 2020
2406:5280::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5380::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5400::/32	4.3B × /64	APNIC	ID	16th Feb 2010
2406:540::/32	4.3B × /64	APNIC	ID	17th Apr 2020
2406:5480::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5500::/32	4.3B × /64	APNIC	IN	1st Mar 2013
2406:5540::/32	4.3B × /64	APNIC	ID	10th Aug 2020
2406:5580::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5640::/32	4.3B × /64	APNIC	TH	10th Aug 2020
2406:5680::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:56c0::/32	4.3B × /64	APNIC	IN	10th Aug 2020
2406:5700::/32	4.3B × /64	APNIC	AF	5th Mar 2013
2406:5780::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:5840::/32	4.3B × /64	APNIC	CN	12th Aug 2020
2406:5841::/32	4.3B × /64	APNIC	CN	16th Oct 2025
2406:5940::/32	4.3B × /64	APNIC	CN	13th Aug 2020
2406:5980::/32	4.3B × /64	APNIC	CN	5th Aug 2016
2406:59c0::/32	4.3B × /64	APNIC	BD	13th Aug 2020