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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,310 blocks match, ordered by prefix.

Allocated but unannounced blocks, 55751 to 55800 of 85310
Prefix	Addresses	Registry	Country	Allocated
2403:800::/31	8.6B × /64	APNIC	CN	11th Aug 2008
2403:80c0::/32	4.3B × /64	APNIC	TW	6th Sept 2018
2403:8140::/32	4.3B × /64	APNIC	TW	6th Sept 2018
2403:8180::/32	4.3B × /64	APNIC	CN	12th Nov 2015
2403:8280::/32	4.3B × /64	APNIC	CN	12th Nov 2015
2403:8380::/32	4.3B × /64	APNIC	CN	12th Nov 2015
2403:83c0::/32	4.3B × /64	APNIC	CN	7th Sept 2018
2403:8480::/32	4.3B × /64	APNIC	CN	12th Nov 2015
2403:84c0::/32	4.3B × /64	APNIC	TW	7th Sept 2018
2403:8540::/32	4.3B × /64	APNIC	BD	7th Sept 2018
2403:8580::/32	4.3B × /64	APNIC	CN	12th Nov 2015
2403:85c0::/32	4.3B × /64	APNIC	BD	9th Sept 2018
2403:8640::/32	4.3B × /64	APNIC	TW	10th Sept 2018
2403:8740::/32	4.3B × /64	APNIC	IN	10th Sept 2018
2403:87c0::/32	4.3B × /64	APNIC	BD	10th Sept 2018
2403:880::/32	4.3B × /64	APNIC	AU	9th Oct 2015
2403:8880::/32	4.3B × /64	APNIC	CN	16th Nov 2015
2403:8900::/32	4.3B × /64	APNIC	CN	10th Apr 2012
2403:8980::/32	4.3B × /64	APNIC	CN	16th Nov 2015
2403:8a40::/32	4.3B × /64	APNIC	CN	11th Sept 2018
2403:8a80::/32	4.3B × /64	APNIC	CN	16th Nov 2015
2403:8ac0::/32	4.3B × /64	APNIC	AU	11th Sept 2018
2403:8b00::/32	4.3B × /64	APNIC	CN	10th Apr 2012
2403:8b40::/32	4.3B × /64	APNIC	BD	12th Sept 2018
2403:8b80::/32	4.3B × /64	APNIC	CN	16th Nov 2015
2403:8bc0::/32	4.3B × /64	APNIC	TW	12th Sept 2018
2403:8c40::/32	4.3B × /64	APNIC	ID	12th Sept 2018
2403:8c80::/32	4.3B × /64	APNIC	CN	16th Nov 2015
2403:8cc0::/32	4.3B × /64	APNIC	ID	12th Sept 2018
2403:8d00::/32	4.3B × /64	APNIC	CN	10th Apr 2012
2403:8d80::/32	4.3B × /64	APNIC	CN	16th Nov 2015
2403:8dc0::/32	4.3B × /64	APNIC	IN	13th Sept 2018
2403:8e40::/32	4.3B × /64	APNIC	HK	14th Sept 2018
2403:8f00::/32	4.3B × /64	APNIC	JP	12th Apr 2012
2403:8f40::/32	4.3B × /64	APNIC	TW	17th Sept 2018
2403:8fc0::/32	4.3B × /64	APNIC	IN	17th Sept 2018
2403:900::/32	4.3B × /64	APNIC	AU	3rd Feb 2012
2403:9040::/32	4.3B × /64	APNIC	BD	18th Sept 2018
2403:9080::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:90c0::/32	4.3B × /64	APNIC	ID	18th Sept 2018
2403:9180::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9280::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9380::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:93c0::/32	4.3B × /64	APNIC	TW	19th Sept 2018
2403:940::/32	4.3B × /64	APNIC	SG	7th Jun 2018
2403:9480::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9580::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:95c0::/32	4.3B × /64	APNIC	TW	19th Sept 2018
2403:9600::/32	4.3B × /64	APNIC	JP	29th Jul 2010
2403:9680::/32	4.3B × /64	APNIC	CN	18th Nov 2015