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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 55651 to 55700 of 85310
Prefix	Addresses	Registry	Country	Allocated
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
2403:5c40::/32	4.3B × /64	APNIC	BD	8th Aug 2018
2403:5d40::/32	4.3B × /64	APNIC	HK	8th Aug 2018
2403:5d80::/32	4.3B × /64	APNIC	CN	4th Nov 2015
2403:5e00::/32	4.3B × /64	APNIC	PH	10th Jul 2010
2403:5e40::/32	4.3B × /64	APNIC	CN	10th Aug 2018
2403:5e80::/32	4.3B × /64	APNIC	CN	4th Nov 2015
2403:5ec0::/32	4.3B × /64	APNIC	CN	10th Aug 2018
2403:5f00::/32	4.3B × /64	APNIC	JP	20th Mar 2012
2403:5f80::/32	4.3B × /64	APNIC	CN	4th Nov 2015
2403:5fc0::/32	4.3B × /64	APNIC	CN	10th Aug 2018
2403:6040::/32	4.3B × /64	APNIC	IN	10th Aug 2018
2403:6080::/32	4.3B × /64	APNIC	CN	4th Nov 2015
2403:6180::/32	4.3B × /64	APNIC	CN	4th Nov 2015
2403:61c0::/32	4.3B × /64	APNIC	BD	13th Aug 2018
2403:6280::/32	4.3B × /64	APNIC	CN	4th Nov 2015
2403:62c0::/32	4.3B × /64	APNIC	CN	13th Aug 2018
2403:6300::/32	4.3B × /64	APNIC	KR	21st Mar 2012
2403:6340::/32	4.3B × /64	APNIC	PK	14th Aug 2018
2403:6400::/32	4.3B × /64	APNIC	HK	22nd Dec 2009
2403:640::/32	4.3B × /64	APNIC	AU	7th Jun 2018
2403:6440::/32	4.3B × /64	APNIC	HK	14th Aug 2018
2403:64c0::/32	4.3B × /64	APNIC	HK	14th Aug 2018
2403:6500::/32	4.3B × /64	APNIC	KR	21st Mar 2012
2403:6540::/32	4.3B × /64	APNIC	HK	14th Aug 2018
2403:6580::/32	4.3B × /64	APNIC	CN	5th Nov 2015
2403:6680::/32	4.3B × /64	APNIC	CN	5th Nov 2015
2403:66c0::/32	4.3B × /64	APNIC	AU	15th Aug 2018