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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,419 blocks match, ordered by prefix.

Allocated but unannounced blocks, 55551 to 55600 of 84419
Prefix	Addresses	Registry	Country	Allocated
2403:cf00::/32	4.3B × /64	APNIC	AU	9th May 2012
2403:cf80::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d001::/32	4.3B × /64	APNIC	JP	7th Sept 2020
2403:d00::/32	4.3B × /64	APNIC	AU	6th Feb 2012
2403:d080::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d0c0::/32	4.3B × /64	APNIC	TH	24th Oct 2018
2403:d100::/32	4.3B × /64	APNIC	AU	9th May 2012
2403:d180::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d1c0::/32	4.3B × /64	APNIC	AU	24th Oct 2018
2403:d280::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d2c0::/32	4.3B × /64	APNIC	CN	25th Oct 2018
2403:d380::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d3c0::/32	4.3B × /64	APNIC	AU	25th Oct 2018
2403:d440::/32	4.3B × /64	APNIC	CN	25th Oct 2018
2403:d480::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d580::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d5c0::/32	4.3B × /64	APNIC	TW	26th Oct 2018
2403:d640::/32	4.3B × /64	APNIC	ID	26th Oct 2018
2403:d680::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d6c0::/32	4.3B × /64	APNIC	NZ	28th Oct 2018
2403:d700::/32	4.3B × /64	APNIC	MN	10th May 2012
2403:d780::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d7c0::/32	4.3B × /64	APNIC	CN	29th Oct 2018
2403:d80::/32	4.3B × /64	APNIC	CN	12th Oct 2015
2403:d880::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d900::/32	4.3B × /64	APNIC	AU	11th May 2012
2403:d980::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d9c0::/32	4.3B × /64	APNIC	CN	29th Oct 2018
2403:da80::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:dac0::/32	4.3B × /64	APNIC	CN	29th Oct 2018
2403:db00::/32	4.3B × /64	APNIC	CN	11th May 2012
2403:db80::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:dc0::/32	4.3B × /64	APNIC	PK	11th Jun 2018
2403:dc40::/32	4.3B × /64	APNIC	SG	30th Oct 2018
2403:dc80::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:dcc0::/32	4.3B × /64	APNIC	HK	31st Oct 2018
2403:dd00::/32	4.3B × /64	APNIC	BD	11th May 2012
2403:dd40::/32	4.3B × /64	APNIC	JP	31st Oct 2018
2403:dd80::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:de40::/32	4.3B × /64	APNIC	SG	31st Oct 2018
2403:de80::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:df00::/32	4.3B × /64	APNIC	SG	11th May 2012
2403:df80::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:e080::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:e100::/32	4.3B × /64	APNIC	BD	11th May 2012
2403:e180::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:e1c0::/32	4.3B × /64	APNIC	ID	2nd Nov 2018
2403:e280::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:e300::/32	4.3B × /64	APNIC	CN	14th May 2012
2403:e340::/32	4.3B × /64	APNIC	HK	5th Nov 2018