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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through APNIC, largest first.

Unannounced blocks registered through APNIC

22,575 blocks match, ordered by prefix.

Allocated but unannounced blocks, 18351 to 18400 of 22575
Prefix	Addresses	Registry	Country	Allocated
2403:4180::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:4380::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:4400::/32	4.3B × /64	APNIC	JP	10th Dec 2009
2403:4500::/32	4.3B × /64	APNIC	ID	6th Mar 2012
2403:4580::/32	4.3B × /64	APNIC	CN	2nd Nov 2015
2403:4600::/32	4.3B × /64	APNIC	FJ	6th Jul 2010
2403:4640::/32	4.3B × /64	APNIC	PH	23rd Jul 2018
2403:4680::/32	4.3B × /64	APNIC	CN	2nd Nov 2015
2403:4780::/32	4.3B × /64	APNIC	CN	2nd Nov 2015
2403:480::/32	4.3B × /64	APNIC	AU	7th Oct 2015
2403:4840::/32	4.3B × /64	APNIC	CN	25th Jul 2018
2403:4880::/32	4.3B × /64	APNIC	CN	2nd Nov 2015
2403:4980::/32	4.3B × /64	APNIC	CN	2nd Nov 2015
2403:4a40::/32	4.3B × /64	APNIC	CN	27th Jul 2018
2403:4a80::/32	4.3B × /64	APNIC	CN	2nd Nov 2015
2403:4ac0::/32	4.3B × /64	APNIC	MY	27th Jul 2018
2403:4b40::/32	4.3B × /64	APNIC	CN	27th Jul 2018
2403:4b80::/32	4.3B × /64	APNIC	CN	2nd Nov 2015
2403:4bc0::/32	4.3B × /64	APNIC	AU	27th Jul 2018
2403:4c00::/32	4.3B × /64	APNIC	TH	11th Dec 2009
2403:4cc0::/32	4.3B × /64	APNIC	CN	30th Jul 2018
2403:4d80::/32	4.3B × /64	APNIC	CN	2nd Nov 2015
2403:4dc0::/32	4.3B × /64	APNIC	AU	30th Jul 2018
2403:4e40::/32	4.3B × /64	APNIC	HK	30th Jul 2018
2403:4ec0::/32	4.3B × /64	APNIC	CN	30th Jul 2018
2403:4f40::/32	4.3B × /64	APNIC	HK	31st Jul 2018
2403:4fc0::/32	4.3B × /64	APNIC	HK	31st Jul 2018
2403:5040::/32	4.3B × /64	APNIC	CN	31st Jul 2018
2403:5080::/32	4.3B × /64	APNIC	CN	3rd Nov 2015
2403:5100::/32	4.3B × /64	APNIC	AU	9th Mar 2012
2403:5140::/32	4.3B × /64	APNIC	HK	31st Jul 2018
2403:5280::/32	4.3B × /64	APNIC	CN	3rd Nov 2015
2403:52c0::/32	4.3B × /64	APNIC	BD	31st Jul 2018
2403:5380::/32	4.3B × /64	APNIC	CN	3rd Nov 2015
2403:540::/32	4.3B × /64	APNIC	AU	7th Jun 2018
2403:54c0::/32	4.3B × /64	APNIC	CN	1st Aug 2018
2403:5540::/32	4.3B × /64	APNIC	CN	1st Aug 2018
2403:5580::/32	4.3B × /64	APNIC	CN	3rd Nov 2015
2403:5600::/32	4.3B × /64	APNIC	HK	9th Jul 2010
2403:5640::/32	4.3B × /64	APNIC	CN	2nd Aug 2018
2403:5780::/32	4.3B × /64	APNIC	CN	4th Nov 2015
2403:5900::/32	4.3B × /64	APNIC	IN	16th Mar 2012
2403:5940::/32	4.3B × /64	APNIC	BD	6th Aug 2018
2403:5980::/32	4.3B × /64	APNIC	CN	4th Nov 2015
2403:59c0::/32	4.3B × /64	APNIC	BD	7th Aug 2018
2403:5a80::/32	4.3B × /64	APNIC	CN	4th Nov 2015
2403:5ac0::/32	4.3B × /64	APNIC	IN	7th Aug 2018
2403:5b40::/32	4.3B × /64	APNIC	CN	7th Aug 2018
2403:5b80::/32	4.3B × /64	APNIC	CN	4th Nov 2015
2403:5c0::/32	4.3B × /64	APNIC	PH	7th Jun 2018