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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

6,735 blocks match, ordered by prefix.

Allocated but unannounced blocks, 4801 to 4850 of 6735
Prefix	Addresses	Registry	Country	Allocated
2403:7280::/32	4.3B × /64	APNIC	CN	10th Nov 2015
2403:7380::/32	4.3B × /64	APNIC	CN	10th Nov 2015
2403:7480::/32	4.3B × /64	APNIC	CN	10th Nov 2015
2403:7540::/32	4.3B × /64	APNIC	CN	31st Aug 2018
2403:76c0::/32	4.3B × /64	APNIC	CN	3rd Sept 2018
2403:7700::/32	4.3B × /64	APNIC	CN	29th Mar 2012
2403:78c0::/32	4.3B × /64	APNIC	CN	4th Sept 2018
2403:7a80::/32	4.3B × /64	APNIC	CN	11th Nov 2015
2403:7b00::/32	4.3B × /64	APNIC	CN	29th Mar 2012
2403:7c0::/32	4.3B × /64	APNIC	CN	7th Jun 2018
2403:7d80::/32	4.3B × /64	APNIC	CN	12th Nov 2015
2403:7e80::/32	4.3B × /64	APNIC	CN	12th Nov 2015
2403:7f80::/32	4.3B × /64	APNIC	CN	12th Nov 2015
2403:800::/31	8.6B × /64	APNIC	CN	11th Aug 2008
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
2403:8580::/32	4.3B × /64	APNIC	CN	12th Nov 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
2403:8b00::/32	4.3B × /64	APNIC	CN	10th Apr 2012
2403:8b80::/32	4.3B × /64	APNIC	CN	16th Nov 2015
2403:8c80::/32	4.3B × /64	APNIC	CN	16th Nov 2015
2403:8d00::/32	4.3B × /64	APNIC	CN	10th Apr 2012
2403:8d80::/32	4.3B × /64	APNIC	CN	16th Nov 2015
2403:9080::/32	4.3B × /64	APNIC	CN	18th Nov 2015
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
2403:9480::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9580::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9680::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9780::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:980::/32	4.3B × /64	APNIC	CN	10th Oct 2015
2403:9880::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9a80::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9ac0::/32	4.3B × /64	APNIC	CN	21st Sept 2018
2403:9b40::/32	4.3B × /64	APNIC	CN	21st Sept 2018
2403:9b80::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9c80::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9d00::/32	4.3B × /64	APNIC	CN	18th Apr 2012
2403:9d80::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9e40::/32	4.3B × /64	APNIC	CN	26th Sept 2018
2403:9e80::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:9ec0::/32	4.3B × /64	APNIC	CN	26th Sept 2018