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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Browse by country

Countries with the most unannounced blocks, largest first.

Unannounced blocks in China

6,735 blocks match, ordered by prefix.

Allocated but unannounced blocks, 4851 to 4900 of 6735
Prefix	Addresses	Registry	Country	Allocated
2403:9f80::/32	4.3B × /64	APNIC	CN	18th Nov 2015
2403:a300::/32	4.3B × /64	APNIC	CN	19th Apr 2012
2403:a480::/32	4.3B × /64	APNIC	CN	20th Nov 2015
2403:a580::/32	4.3B × /64	APNIC	CN	20th Nov 2015
2403:a680::/32	4.3B × /64	APNIC	CN	20th Nov 2015
2403:a6c0::/32	4.3B × /64	APNIC	CN	28th Sept 2018
2403:a780::/32	4.3B × /64	APNIC	CN	20th Nov 2015
2403:a80::/32	4.3B × /64	APNIC	CN	12th Oct 2015
2403:a880::/32	4.3B × /64	APNIC	CN	20th Nov 2015
2403:a940::/32	4.3B × /64	APNIC	CN	29th Sept 2018
2403:a980::/32	4.3B × /64	APNIC	CN	20th Nov 2015
2403:a9c0::/32	4.3B × /64	APNIC	CN	30th Sept 2018
2403:aa40::/32	4.3B × /64	APNIC	CN	30th Sept 2018
2403:aa80::/32	4.3B × /64	APNIC	CN	20th Nov 2015
2403:ab80::/32	4.3B × /64	APNIC	CN	20th Nov 2015
2403:af80::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b080::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b180::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b280::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b380::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b480::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b580::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b680::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b780::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b80::/32	4.3B × /64	APNIC	CN	12th Oct 2015
2403:b880::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:b980::/32	4.3B × /64	APNIC	CN	24th Nov 2015
2403:ba40::/32	4.3B × /64	APNIC	CN	8th Oct 2018
2403:c040::/32	4.3B × /64	APNIC	CN	11th Oct 2018
2403:c080::/32	4.3B × /64	APNIC	CN	30th Nov 2015
2403:c100::/32	4.3B × /64	APNIC	CN	3rd May 2012
2403:c140::/32	4.3B × /64	APNIC	CN	12th Oct 2018
2403:c180::/32	4.3B × /64	APNIC	CN	30th Nov 2015
2403:c3c0::/32	4.3B × /64	APNIC	CN	15th Oct 2018
2403:c440::/32	4.3B × /64	APNIC	CN	15th Oct 2018
2403:c480::/32	4.3B × /64	APNIC	CN	30th Nov 2015
2403:c4c0::/32	4.3B × /64	APNIC	CN	15th Oct 2018
2403:cdc0::/32	4.3B × /64	APNIC	CN	22nd Oct 2018
2403:cf80::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d080::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d180::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d280::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d2c0::/32	4.3B × /64	APNIC	CN	25th Oct 2018
2403:d380::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d440::/32	4.3B × /64	APNIC	CN	25th Oct 2018
2403:d480::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d580::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d680::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d780::/32	4.3B × /64	APNIC	CN	8th Dec 2015
2403:d7c0::/32	4.3B × /64	APNIC	CN	29th Oct 2018