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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 18751 to 18800 of 22575
Prefix	Addresses	Registry	Country	Allocated
2403:f740::/32	4.3B × /64	APNIC	CN	20th Nov 2018
2403:f80::/32	4.3B × /64	APNIC	CN	12th Oct 2015
2403:f8c0::/32	4.3B × /64	APNIC	CN	22nd Nov 2018
2403:f980::/32	4.3B × /64	APNIC	CN	14th Dec 2015
2403:f9c0::/32	4.3B × /64	APNIC	BD	22nd Nov 2018
2403:fb00::/32	4.3B × /64	APNIC	CN	18th May 2012
2403:fb40::/32	4.3B × /64	APNIC	TW	23rd Nov 2018
2403:fb80::/32	4.3B × /64	APNIC	CN	15th Dec 2015
2403:fc40::/32	4.3B × /64	APNIC	CN	25th Nov 2018
2403:fcc0::/32	4.3B × /64	APNIC	PK	25th Nov 2018
2403:fd00::/32	4.3B × /64	APNIC	AU	22nd May 2012
2403:fdc0::/32	4.3B × /64	APNIC	AU	26th Nov 2018
2403:fe40::/32	4.3B × /64	APNIC	CN	26th Nov 2018
2403:fe80::/32	4.3B × /64	APNIC	CN	16th Dec 2015
2403:fec0::/32	4.3B × /64	APNIC	CN	26th Nov 2018
2403:ff40::/32	4.3B × /64	APNIC	BD	26th Nov 2018
2403:ff80::/32	4.3B × /64	APNIC	CN	16th Dec 2015
2403:ffc1::/32	4.3B × /64	APNIC	CN	26th Nov 2023
2404:100::/32	4.3B × /64	APNIC	CN	23rd May 2012
2404:1040::/32	4.3B × /64	APNIC	ID	6th Dec 2018
2404:1080::/32	4.3B × /64	APNIC	CN	25th Dec 2015
2404:10c0::/32	4.3B × /64	APNIC	CN	6th Dec 2018
2404:1180::/32	4.3B × /64	APNIC	CN	28th Dec 2015
2404:1240::/32	4.3B × /64	APNIC	NZ	7th Dec 2018
2404:1300::/32	4.3B × /64	APNIC	JP	30th May 2012
2404:1340::/32	4.3B × /64	APNIC	IN	7th Dec 2018
2404:1380::/32	4.3B × /64	APNIC	BD	30th Dec 2015
2404:1400::/32	4.3B × /64	APNIC	ID	8th Feb 2010
2404:14c0::/32	4.3B × /64	APNIC	CN	10th Dec 2018
2404:1500::/32	4.3B × /64	APNIC	IN	31st May 2012
2404:1540::/32	4.3B × /64	APNIC	NP	10th Dec 2018
2404:158::/32	4.3B × /64	APNIC	CN	22nd Jun 2006
2404:15c0::/32	4.3B × /64	APNIC	TW	11th Dec 2018
2404:1600::/32	4.3B × /64	APNIC	AU	25th Aug 2010
2404:1601::/32	4.3B × /64	APNIC	AU	19th Nov 2014
2404:1680::/32	4.3B × /64	APNIC	TH	4th Jan 2016
2404:16c0::/32	4.3B × /64	APNIC	BD	11th Dec 2018
2404:1740::/32	4.3B × /64	APNIC	BD	11th Dec 2018
2404:1780::/32	4.3B × /64	APNIC	MM	4th Jan 2016
2404:178::/32	4.3B × /64	APNIC	TW	18th Aug 2006
2404:17c0::/32	4.3B × /64	APNIC	IN	11th Dec 2018
2404:1840::/32	4.3B × /64	APNIC	AU	12th Dec 2018
2404:1880::/32	4.3B × /64	APNIC	CN	5th Jan 2016
2404:1a00::/32	4.3B × /64	APNIC	TH	25th Aug 2010
2404:1a40::/32	4.3B × /64	APNIC	HK	14th Dec 2018
2404:1ac0::/32	4.3B × /64	APNIC	US	14th Dec 2018
2404:1cc0::/32	4.3B × /64	APNIC	CN	17th Dec 2018
2404:1d00::/32	4.3B × /64	APNIC	AU	5th Jun 2012
2404:1d40::/32	4.3B × /64	APNIC	BD	17th Dec 2018
2404:1e00::/32	4.3B × /64	APNIC	NZ	25th Aug 2010