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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,419 blocks match, ordered by prefix.

Allocated but unannounced blocks, 55501 to 55550 of 84419
Prefix	Addresses	Registry	Country	Allocated
2403:b780::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b80::/32	4.3B × /64	APNIC	CN	12th Oct 2015
2403:b880::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b940::/32	4.3B × /64	APNIC	TW	8th Oct 2018
2403:b980::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:ba40::/32	4.3B × /64	APNIC	CN	8th Oct 2018
2403:ba80::/32	4.3B × /64	APNIC	AU	26th Nov 2015
2403:bb00::/32	4.3B × /64	APNIC	ID	1st May 2012
2403:bb40::/32	4.3B × /64	APNIC	BD	8th Oct 2018
2403:bbc0::/32	4.3B × /64	APNIC	KH	9th Oct 2018
2403:bc40::/32	4.3B × /64	APNIC	MY	9th Oct 2018
2403:bd00::/32	4.3B × /64	APNIC	IN	2nd May 2012
2403:bd40::/32	4.3B × /64	APNIC	PK	9th Oct 2018
2403:be00::/32	4.3B × /64	APNIC	ID	3rd Aug 2010
2403:be80::/32	4.3B × /64	APNIC	IN	27th Nov 2015
2403:bfc0::/32	4.3B × /64	APNIC	VN	11th Oct 2018
2403:c040::/32	4.3B × /64	APNIC	CN	11th Oct 2018
2403:c080::/32	4.3B × /64	APNIC	CN	30th Nov 2015
2403:c100::/32	4.3B × /64	APNIC	CN	3rd May 2012
2403:c140::/32	4.3B × /64	APNIC	CN	12th Oct 2018
2403:c180::/32	4.3B × /64	APNIC	CN	30th Nov 2015
2403:c1c0::/32	4.3B × /64	APNIC	TW	12th Oct 2018
2403:c200::/32	4.3B × /64	APNIC	NZ	5th Aug 2010
2403:c2c0::/32	4.3B × /64	APNIC	PK	15th Oct 2018
2403:c300::/32	4.3B × /64	APNIC	TW	3rd May 2012
2403:c340::/32	4.3B × /64	APNIC	ID	15th Oct 2018
2403:c3c0::/32	4.3B × /64	APNIC	CN	15th Oct 2018
2403:c400::/32	4.3B × /64	APNIC	AU	20th Jan 2010
2403:c40::/32	4.3B × /64	APNIC	HK	9th Jun 2018
2403:c440::/32	4.3B × /64	APNIC	CN	15th Oct 2018
2403:c480::/32	4.3B × /64	APNIC	CN	30th Nov 2015
2403:c4c0::/32	4.3B × /64	APNIC	CN	15th Oct 2018
2403:c500::/32	4.3B × /64	APNIC	SG	4th May 2012
2403:c540::/32	4.3B × /64	APNIC	HK	16th Oct 2018
2403:c600::/32	4.3B × /64	APNIC	ID	6th Aug 2010
2403:c640::/32	4.3B × /64	APNIC	NZ	17th Oct 2018
2403:c680::/32	4.3B × /64	APNIC	IN	1st Dec 2015
2403:c740::/32	4.3B × /64	APNIC	TH	17th Oct 2018
2403:c8c0::/32	4.3B × /64	APNIC	BD	18th Oct 2018
2403:c900::/32	4.3B × /64	APNIC	NZ	9th May 2012
2403:c940::/32	4.3B × /64	APNIC	TW	19th Oct 2018
2403:c9c0::/32	4.3B × /64	APNIC	TW	22nd Oct 2018
2403:cbc0::/32	4.3B × /64	APNIC	MY	22nd Oct 2018
2403:cc00::/32	4.3B × /64	APNIC	SG	22nd Jan 2010
2403:cc80::/32	4.3B × /64	APNIC	BD	6th Dec 2015
2403:cd00::/32	4.3B × /64	APNIC	PH	9th May 2012
2403:cd80::/32	4.3B × /64	APNIC	PH	7th Dec 2015
2403:cdc0::/32	4.3B × /64	APNIC	CN	22nd Oct 2018
2403:ce00::/32	4.3B × /64	APNIC	AU	6th Aug 2010
2403:ce40::/32	4.3B × /64	APNIC	TW	22nd Oct 2018