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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 55301 to 55350 of 85310
Prefix	Addresses	Registry	Country	Allocated
2402:a280::/32	4.3B × /64	APNIC	CN	22nd Jul 2015
2402:a2c0::/32	4.3B × /64	APNIC	PK	22nd Mar 2018
2402:a380::/32	4.3B × /64	APNIC	CN	22nd Jul 2015
2402:a400::/32	4.3B × /64	APNIC	AU	30th Oct 2009
2402:a480::/32	4.3B × /64	APNIC	NZ	23rd Jul 2015
2402:a4c0::/32	4.3B × /64	APNIC	BD	24th Mar 2018
2402:a500::/32	4.3B × /64	APNIC	ID	7th Dec 2011
2402:a60::/32	4.3B × /64	APNIC	CN	14th May 2025
2402:a640::/32	4.3B × /64	APNIC	CN	27th Mar 2018
2402:a680::/32	4.3B × /64	APNIC	CN	28th Jul 2015
2402:a6c0::/32	4.3B × /64	APNIC	CN	27th Mar 2018
2402:a780::/32	4.3B × /64	APNIC	NZ	28th Jul 2015
2402:a80::/32	4.3B × /64	APNIC	AU	10th Feb 2015
2402:a840::/32	4.3B × /64	APNIC	CN	29th Mar 2018
2402:a880::/32	4.3B × /64	APNIC	CN	28th Jul 2015
2402:a8c0::/32	4.3B × /64	APNIC	AU	29th Mar 2018
2402:a900::/32	4.3B × /64	APNIC	SG	8th Dec 2011
2402:a980::/32	4.3B × /64	APNIC	AU	28th Jul 2015
2402:aa80::/32	4.3B × /64	APNIC	CN	28th Jul 2015
2402:aac0::/32	4.3B × /64	APNIC	AU	3rd Apr 2018
2402:ab00::/32	4.3B × /64	APNIC	ID	9th Dec 2011
2402:ab80::/32	4.3B × /64	APNIC	CN	28th Jul 2015
2402:abc0::/32	4.3B × /64	APNIC	BD	3rd Apr 2018
2402:ac00::/32	4.3B × /64	APNIC	ID	2nd Nov 2009
2402:ac80::/32	4.3B × /64	APNIC	AU	29th Jul 2015
2402:ad00::/32	4.3B × /64	APNIC	AU	12th Dec 2011
2402:adc0::/32	4.3B × /64	APNIC	IN	3rd Apr 2018
2402:ae00::/32	4.3B × /64	APNIC	CN	28th May 2010
2402:ae40::/32	4.3B × /64	APNIC	CN	4th Apr 2018
2402:aec0::/32	4.3B × /64	APNIC	CN	4th Apr 2018
2402:af40::/32	4.3B × /64	APNIC	JP	4th Apr 2018
2402:af80::/32	4.3B × /64	APNIC	CN	29th Jul 2015
2402:afc0::/32	4.3B × /64	APNIC	CN	4th Apr 2018
2402:b080::/32	4.3B × /64	APNIC	CN	31st Jul 2015
2402:b100::/32	4.3B × /64	APNIC	AU	13th Dec 2011
2402:b1c0::/32	4.3B × /64	APNIC	BD	5th Apr 2018
2402:b200::/32	4.3B × /64	APNIC	CN	28th May 2010
2402:b20::/32	4.3B × /64	APNIC	TW	15th May 2025
2402:b2c0::/32	4.3B × /64	APNIC	BD	6th Apr 2018
2402:b340::/32	4.3B × /64	APNIC	KH	6th Apr 2018
2402:b40::/32	4.3B × /64	APNIC	VN	23rd Nov 2017
2402:b440::/32	4.3B × /64	APNIC	CN	8th Apr 2018
2402:b480::/32	4.3B × /64	APNIC	AU	4th Aug 2015
2402:b580::/32	4.3B × /64	APNIC	IN	4th Aug 2015
2402:b6c0::/32	4.3B × /64	APNIC	CN	9th Apr 2018
2402:b700::/32	4.3B × /64	APNIC	JP	16th Dec 2011
2402:b840::/32	4.3B × /64	APNIC	HK	10th Apr 2018
2402:b880::/32	4.3B × /64	APNIC	CN	5th Aug 2015
2402:b980::/32	4.3B × /64	APNIC	CN	5th Aug 2015
2402:ba00::/32	4.3B × /64	APNIC	PH	7th Jun 2010