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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,310 blocks match, ordered by prefix.

Allocated but unannounced blocks, 55551 to 55600 of 85310
Prefix	Addresses	Registry	Country	Allocated
2403:2700::/32	4.3B × /64	APNIC	ID	22nd Feb 2012
2403:2740::/32	4.3B × /64	APNIC	CN	6th Jul 2018
2403:2780::/32	4.3B × /64	APNIC	CN	21st Oct 2015
2403:2801::/32	4.3B × /64	APNIC	TH	7th Sept 2011
2403:2840::/32	4.3B × /64	APNIC	KH	6th Jul 2018
2403:28c0::/32	4.3B × /64	APNIC	CN	6th Jul 2018
2403:2900::/32	4.3B × /64	APNIC	IN	22nd Feb 2012
2403:2940::/32	4.3B × /64	APNIC	CN	6th Jul 2018
2403:2980::/32	4.3B × /64	APNIC	IN	21st Oct 2015
2403:2a00::/32	4.3B × /64	APNIC	CN	2nd Jul 2010
2403:2a40::/32	4.3B × /64	APNIC	CN	6th Jul 2018
2403:2a80::/32	4.3B × /64	APNIC	AU	22nd Oct 2015
2403:2ac0::/32	4.3B × /64	APNIC	CN	6th Jul 2018
2403:2b80::/32	4.3B × /64	APNIC	MY	22nd Oct 2015
2403:2bc0::/32	4.3B × /64	APNIC	CN	8th Jul 2018
2403:2c0::/32	4.3B × /64	APNIC	AU	6th Jun 2018
2403:2c40::/32	4.3B × /64	APNIC	BD	8th Jul 2018
2403:2cc0::/32	4.3B × /64	APNIC	CN	9th Jul 2018
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
2403:31c0::/32	4.3B × /64	APNIC	ID	11th Jul 2018
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