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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

84,419 blocks match, ordered by prefix.

Allocated but unannounced blocks, 55201 to 55250 of 84419
Prefix	Addresses	Registry	Country	Allocated
2403:2d40::/32	4.3B × /64	APNIC	BD	9th Jul 2018
2403:2dc0::/32	4.3B × /64	APNIC	JP	10th Jul 2018
2403:2e00::/32	4.3B × /64	APNIC	ID	5th Jul 2010
2403:2f40::/32	4.3B × /64	APNIC	CN	11th Jul 2018
2403:2f80::/32	4.3B × /64	APNIC	AU	26th Oct 2015
2403:2fc0::/32	4.3B × /64	APNIC	CN	11th Jul 2018
2403:3040::/32	4.3B × /64	APNIC	CN	11th Jul 2018
2403:30c0::/32	4.3B × /64	APNIC	CN	11th Jul 2018
2403:3100::/32	4.3B × /64	APNIC	SG	28th Feb 2012
2403:3180::/32	4.3B × /64	APNIC	AU	28th Oct 2015
2403:3280::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:32c0::/32	4.3B × /64	APNIC	CN	12th Jul 2018
2403:3300::/32	4.3B × /64	APNIC	NL	28th Feb 2012
2403:3340::/32	4.3B × /64	APNIC	ID	12th Jul 2018
2403:3380::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:33c0::/32	4.3B × /64	APNIC	ID	12th Jul 2018
2403:340::/32	4.3B × /64	APNIC	US	6th Jun 2018
2403:3480::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:3500::/32	4.3B × /64	APNIC	AU	1st Mar 2012
2403:3540::/32	4.3B × /64	APNIC	ID	13th Jul 2018
2403:3580::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:35c0::/32	4.3B × /64	APNIC	ID	13th Jul 2018
2403:3600::/32	4.3B × /64	APNIC	AU	5th Jul 2010
2403:3640::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3680::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:36c0::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3700::/32	4.3B × /64	APNIC	KR	1st Mar 2012
2403:3740::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3780::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:37c0::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:380::/32	4.3B × /64	APNIC	HK	7th Oct 2015
2403:3840::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3880::/32	4.3B × /64	APNIC	CN	28th Oct 2015
2403:38c0::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3900::/32	4.3B × /64	APNIC	NZ	2nd Mar 2012
2403:3940::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3980::/32	4.3B × /64	APNIC	CN	29th Oct 2015
2403:39c0::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3b80::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:3c00::/32	4.3B × /64	APNIC	AU	2nd Dec 2009
2403:3c40::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3c80::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:3cc0::/32	4.3B × /64	APNIC	CN	16th Jul 2018
2403:3d40::/32	4.3B × /64	APNIC	CN	17th Jul 2018
2403:3d80::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:3dc0::/32	4.3B × /64	APNIC	CN	17th Jul 2018
2403:3e00::/32	4.3B × /64	APNIC	KR	6th Jul 2010
2403:3e40::/32	4.3B × /64	APNIC	AF	17th Jul 2018
2403:3e80::/32	4.3B × /64	APNIC	CN	30th Oct 2015
2403:3ec0::/32	4.3B × /64	APNIC	CN	17th Jul 2018