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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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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, 5001 to 5050 of 6735
Prefix	Addresses	Registry	Country	Allocated
2404:6a40::/32	4.3B × /64	APNIC	CN	17th Feb 2019
2404:6f80::/32	4.3B × /64	APNIC	CN	3rd Mar 2016
2404:7100::/32	4.3B × /64	APNIC	CN	12th Jul 2012
2404:71c0::/32	4.3B × /64	APNIC	CN	19th Feb 2019
2404:74c0::/32	4.3B × /64	APNIC	CN	20th Feb 2019
2404:7740::/32	4.3B × /64	APNIC	CN	22nd Feb 2019
2404:7d00::/32	4.3B × /64	APNIC	CN	19th Jul 2012
2404:8040::/32	4.3B × /64	APNIC	CN	27th Feb 2019
2404:80c0::/32	4.3B × /64	APNIC	CN	27th Feb 2019
2404:8140::/32	4.3B × /64	APNIC	CN	27th Feb 2019
2404:81c0::/32	4.3B × /64	APNIC	CN	27th Feb 2019
2404:8480::/32	4.3B × /64	APNIC	CN	14th Mar 2016
2404:8580::/32	4.3B × /64	APNIC	CN	14th Mar 2016
2404:8700::/32	4.3B × /64	APNIC	CN	23rd Jul 2012
2404:8880::/32	4.3B × /64	APNIC	CN	16th Mar 2016
2404:8a80::/32	4.3B × /64	APNIC	CN	17th Mar 2016
2404:8dc0::/32	4.3B × /64	APNIC	CN	5th Mar 2019
2404:9340::/32	4.3B × /64	APNIC	CN	8th Mar 2019
2404:9b80::/32	4.3B × /64	APNIC	CN	28th Mar 2016
2404:9c80::/32	4.3B × /64	APNIC	CN	28th Mar 2016
2404:a000::/32	4.3B × /64	APNIC	CN	19th Dec 2008
2404:a080::/32	4.3B × /64	APNIC	CN	29th Mar 2016
2404:a0c0::/32	4.3B × /64	APNIC	CN	14th Mar 2019
2404:a180::/32	4.3B × /64	APNIC	CN	30th Mar 2016
2404:a240::/32	4.3B × /64	APNIC	CN	19th Mar 2019
2404:a740::/32	4.3B × /64	APNIC	CN	22nd Mar 2019
2404:a80::/32	4.3B × /64	APNIC	CN	22nd Dec 2015
2404:b100::/32	4.3B × /64	APNIC	CN	6th Aug 2012
2404:b340::/32	4.3B × /64	APNIC	CN	29th Mar 2019
2404:b3c0::/32	4.3B × /64	APNIC	CN	29th Mar 2019
2404:b440::/32	4.3B × /64	APNIC	CN	31st Mar 2019
2404:b4c0::/32	4.3B × /64	APNIC	CN	31st Mar 2019
2404:b80::/32	4.3B × /64	APNIC	CN	22nd Dec 2015
2404:b900::/32	4.3B × /64	APNIC	CN	10th Aug 2012
2404:bbc0::/32	4.3B × /64	APNIC	CN	8th Apr 2019
2404:bc40::/32	4.3B × /64	APNIC	CN	8th Apr 2019
2404:c1c0::/32	4.3B × /64	APNIC	CN	16th Apr 2019
2404:c240::/32	4.3B × /64	APNIC	CN	16th Apr 2019
2404:c3c0::/32	4.3B × /64	APNIC	CN	16th Apr 2019
2404:c40::/32	4.3B × /64	APNIC	CN	2nd Dec 2018
2404:c440::/32	4.3B × /64	APNIC	CN	16th Apr 2019
2404:c4c0::/32	4.3B × /64	APNIC	CN	16th Apr 2019
2404:c540::/32	4.3B × /64	APNIC	CN	16th Apr 2019
2404:c5c0::/32	4.3B × /64	APNIC	CN	16th Apr 2019
2404:c9c0::/32	4.3B × /64	APNIC	CN	22nd Apr 2019
2404:cd00::/32	4.3B × /64	APNIC	CN	17th Aug 2012
2404:d040::/32	4.3B × /64	APNIC	CN	26th Apr 2019
2404:d080::/32	4.3B × /64	APNIC	CN	19th Apr 2016
2404:d140::/32	4.3B × /64	APNIC	CN	28th Apr 2019
2404:d280::/32	4.3B × /64	APNIC	CN	20th Apr 2016