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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 4551 to 4600 of 6735
Prefix	Addresses	Registry	Country	Allocated
2402:5bc0::/32	4.3B × /64	APNIC	CN	18th Jan 2018
2402:5c0::/32	4.3B × /64	APNIC	CN	17th Nov 2017
2402:5d00::/32	4.3B × /64	APNIC	CN	25th Oct 2011
2402:5e00::/32	4.3B × /64	APNIC	CN	14th May 2010
2402:5f20::/32	4.3B × /64	APNIC	CN	22nd May 2026
2402:5f40::/32	4.3B × /64	APNIC	CN	19th Jan 2018
2402:6060::/32	4.3B × /64	APNIC	CN	28th May 2026
2402:6280::/32	4.3B × /64	APNIC	CN	19th May 2015
2402:6320::/32	4.3B × /64	APNIC	CN	10th Jun 2026
2402:64c0::/32	4.3B × /64	APNIC	CN	25th Jan 2018
2402:66c0::/32	4.3B × /64	APNIC	CN	29th Jan 2018
2402:6740::/32	4.3B × /64	APNIC	CN	29th Jan 2018
2402:67c0::/32	4.3B × /64	APNIC	CN	29th Jan 2018
2402:6960::/32	4.3B × /64	APNIC	CN	23rd Jul 2026
2402:6a00::/32	4.3B × /64	APNIC	CN	17th May 2010
2402:6b40::/32	4.3B × /64	APNIC	CN	1st Feb 2018
2402:6bc0::/32	4.3B × /64	APNIC	CN	1st Feb 2018
2402:6e00::/32	4.3B × /64	APNIC	CN	17th May 2010
2402:7060::/32	4.3B × /64	APNIC	CN	19th Aug 2026
2402:7080::/32	4.3B × /64	APNIC	CN	4th Jun 2015
2402:70a0::/29	34.4B × /64	APNIC	CN	19th Aug 2026
2402:70c0::/32	4.3B × /64	APNIC	CN	5th Feb 2018
2402:7140::/32	4.3B × /64	APNIC	CN	6th Feb 2018
2402:71c0::/32	4.3B × /64	APNIC	CN	6th Feb 2018
2402:7240::/32	4.3B × /64	APNIC	CN	7th Feb 2018
2402:72c0::/32	4.3B × /64	APNIC	CN	7th Feb 2018
2402:7540::/32	4.3B × /64	APNIC	CN	8th Feb 2018
2402:75c0::/32	4.3B × /64	APNIC	CN	8th Feb 2018
2402:7740::/32	4.3B × /64	APNIC	CN	11th Feb 2018
2402:7d00::/32	4.3B × /64	APNIC	CN	11th Nov 2011
2402:8180::/32	4.3B × /64	APNIC	CN	29th Jun 2015
2402:8300::/32	4.3B × /64	APNIC	CN	14th Nov 2011
2402:8380::/32	4.3B × /64	APNIC	CN	30th Jun 2015
2402:85c0::/32	4.3B × /64	APNIC	CN	2nd Mar 2018
2402:8800::/32	4.3B × /64	APNIC	CN	8th Jul 2008
2402:8840::/32	4.3B × /64	APNIC	CN	5th Mar 2018
2402:8900::/32	4.3B × /64	APNIC	CN	15th Nov 2011
2402:8940::/32	4.3B × /64	APNIC	CN	5th Mar 2018
2402:89c0::/32	4.3B × /64	APNIC	CN	5th Mar 2018
2402:8b40::/32	4.3B × /64	APNIC	CN	6th Mar 2018
2402:8cc0::/32	4.3B × /64	APNIC	CN	6th Mar 2018
2402:8d40::/32	4.3B × /64	APNIC	CN	7th Mar 2018
2402:8f40::/32	4.3B × /64	APNIC	CN	9th Mar 2018
2402:8f80::/32	4.3B × /64	APNIC	CN	15th Jul 2015
2402:9240::/32	4.3B × /64	APNIC	CN	12th Mar 2018
2402:9440::/32	4.3B × /64	APNIC	CN	12th Mar 2018
2402:9480::/32	4.3B × /64	APNIC	CN	20th Jul 2015
2402:94c0::/32	4.3B × /64	APNIC	CN	12th Mar 2018
2402:9580::/32	4.3B × /64	APNIC	CN	20th Jul 2015
2402:95c0::/32	4.3B × /64	APNIC	CN	13th Mar 2018