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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 56951 to 57000 of 84424
Prefix	Addresses	Registry	Country	Allocated
2406:8400::/32	4.3B × /64	APNIC	PK	21st Feb 2010
2406:8480::/32	4.3B × /64	APNIC	CN	9th Aug 2016
2406:8500::/32	4.3B × /64	APNIC	CN	21st Mar 2013
2406:8540::/32	4.3B × /64	APNIC	IN	24th Sept 2020
2406:8580::/32	4.3B × /64	APNIC	CN	9th Aug 2016
2406:85c0::/32	4.3B × /64	APNIC	ID	24th Sept 2020
2406:8640::/32	4.3B × /64	APNIC	ID	24th Sept 2020
2406:8680::/32	4.3B × /64	APNIC	HK	9th Aug 2016
2406:86c0::/32	4.3B × /64	APNIC	TW	24th Sept 2020
2406:8740::/32	4.3B × /64	APNIC	ID	24th Sept 2020
2406:8780::/32	4.3B × /64	APNIC	CN	10th Aug 2016
2406:87c0::/32	4.3B × /64	APNIC	ID	25th Sept 2020
2406:880::/32	4.3B × /64	APNIC	CN	25th Jul 2016
2406:8940::/32	4.3B × /64	APNIC	ID	25th Sept 2020
2406:8980::/32	4.3B × /64	APNIC	CN	10th Aug 2016
2406:89c0::/32	4.3B × /64	APNIC	ID	25th Sept 2020
2406:8a00::/32	4.3B × /64	APNIC	AU	27th Jan 2011
2406:8a80::/32	4.3B × /64	APNIC	CN	10th Aug 2016
2406:8ac0::/32	4.3B × /64	APNIC	BD	26th Sept 2020
2406:8b00::/32	4.3B × /64	APNIC	MY	23rd Mar 2013
2406:8b80::/32	4.3B × /64	APNIC	CN	10th Aug 2016
2406:8c0::/32	4.3B × /64	APNIC	CN	24th Apr 2020
2406:8c40::/32	4.3B × /64	APNIC	IN	28th Sept 2020
2406:8c80::/32	4.3B × /64	APNIC	CN	10th Aug 2016
2406:8d40::/32	4.3B × /64	APNIC	IN	29th Sept 2020
2406:8d80::/32	4.3B × /64	APNIC	CN	10th Aug 2016
2406:8e40::/32	4.3B × /64	APNIC	ID	2nd Oct 2020
2406:8e80::/32	4.3B × /64	APNIC	CN	10th Aug 2016
2406:8f40::/32	4.3B × /64	APNIC	CN	2nd Oct 2020
2406:8f80::/32	4.3B × /64	APNIC	CN	10th Aug 2016
2406:8fc0::/32	4.3B × /64	APNIC	ID	5th Oct 2020
2406:900::/32	4.3B × /64	APNIC	AU	9th Jan 2013
2406:90c0::/32	4.3B × /64	APNIC	ID	6th Oct 2020
2406:9100::/32	4.3B × /64	APNIC	HK	26th Mar 2013
2406:91c0::/32	4.3B × /64	APNIC	SG	6th Oct 2020
2406:9200::/32	4.3B × /64	APNIC	CN	28th Jan 2011
2406:9240::/32	4.3B × /64	APNIC	ID	7th Oct 2020
2406:92c0::/32	4.3B × /64	APNIC	ID	7th Oct 2020
2406:9380::/32	4.3B × /64	APNIC	CN	10th Aug 2016
2406:93c0::/32	4.3B × /64	APNIC	AU	7th Oct 2020
2406:9400::/32	4.3B × /64	APNIC	HK	22nd Feb 2010
2406:940::/32	4.3B × /64	APNIC	ID	24th Apr 2020
2406:9440::/32	4.3B × /64	APNIC	IN	8th Oct 2020
2406:9480::/32	4.3B × /64	APNIC	CN	10th Aug 2016
2406:94c0::/32	4.3B × /64	APNIC	CN	8th Oct 2020
2406:9540::/32	4.3B × /64	APNIC	IN	9th Oct 2020
2406:9580::/32	4.3B × /64	APNIC	TW	11th Aug 2016
2406:95c0::/32	4.3B × /64	APNIC	HK	10th Oct 2020
2406:9700::/32	4.3B × /64	APNIC	AU	28th Mar 2013
2406:9780::/32	4.3B × /64	APNIC	CN	11th Aug 2016