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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,310 blocks match, ordered by prefix.

Allocated but unannounced blocks, 55851 to 55900 of 85310
Prefix	Addresses	Registry	Country	Allocated
2403:ac0::/32	4.3B × /64	APNIC	HK	8th Jun 2018
2403:ad00::/32	4.3B × /64	APNIC	IN	24th Apr 2012
2403:ad40::/32	4.3B × /64	APNIC	TW	3rd Oct 2018
2403:adc0::/32	4.3B × /64	APNIC	ID	3rd Oct 2018
2403:ae40::/32	4.3B × /64	APNIC	MY	3rd Oct 2018
2403:af00::/32	4.3B × /64	APNIC	ID	24th Apr 2012
2403:af80::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:afc0::/32	4.3B × /64	APNIC	BD	3rd Oct 2018
2403:b000::/32	4.3B × /64	APNIC	AU	31st Mar 2008
2403:b080::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b101::/32	4.3B × /64	APNIC	SG	31st Jan 2022
2403:b180::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b280::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b340::/32	4.3B × /64	APNIC	TW	3rd Oct 2018
2403:b380::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b3c0::/32	4.3B × /64	APNIC	VN	4th Oct 2018
2403:b40::/32	4.3B × /64	APNIC	MY	8th Jun 2018
2403:b440::/32	4.3B × /64	APNIC	ID	4th Oct 2018
2403:b480::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b580::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b600::/32	4.3B × /64	APNIC	ID	2nd Aug 2010
2403:b640::/32	4.3B × /64	APNIC	TW	5th Oct 2018
2403:b680::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b700::/32	4.3B × /64	APNIC	NZ	1st May 2012
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:b900::/32	4.3B × /64	APNIC	ID	1st May 2012
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