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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 53751 to 53800 of 85346
Prefix	Addresses	Registry	Country	Allocated
2400:e460::/32	4.3B × /64	APNIC	BD	1st Mar 2023
2400:e4a0::/32	4.3B × /64	APNIC	BD	1st Mar 2023
2400:e560::/32	4.3B × /64	APNIC	ID	4th Mar 2023
2400:e5a0::/32	4.3B × /64	APNIC	AU	6th Mar 2023
2400:e620::/32	4.3B × /64	APNIC	IN	6th Mar 2023
2400:e640::/32	4.3B × /64	APNIC	AF	23rd Mar 2017
2400:e6a0::/32	4.3B × /64	APNIC	ID	7th Mar 2023
2400:e6c0::/32	4.3B × /64	APNIC	PH	24th Mar 2017
2400:e6e0::/32	4.3B × /64	APNIC	VN	7th Mar 2023
2400:e720::/32	4.3B × /64	APNIC	IN	8th Mar 2023
2400:e7a0::/32	4.3B × /64	APNIC	BD	8th Mar 2023
2400:e7c0::/32	4.3B × /64	APNIC	HK	28th Mar 2017
2400:e7e0::/32	4.3B × /64	APNIC	CN	8th Mar 2023
2400:e820::/32	4.3B × /64	APNIC	AU	9th Mar 2023
2400:e840::/32	4.3B × /64	APNIC	HK	28th Mar 2017
2400:e880::/32	4.3B × /64	APNIC	CN	23rd Apr 2014
2400:e8a0::/32	4.3B × /64	APNIC	MM	10th Mar 2023
2400:e8c0::/32	4.3B × /64	APNIC	BD	28th Mar 2017
2400:e960::/32	4.3B × /64	APNIC	IN	13th Mar 2023
2400:e980::/32	4.3B × /64	APNIC	IN	24th Apr 2014
2400:e9a0::/32	4.3B × /64	APNIC	IN	13th Mar 2023
2400:e9c0::/32	4.3B × /64	APNIC	MM	29th Mar 2017
2400:e9e0::/32	4.3B × /64	APNIC	BD	13th Mar 2023
2400:ea20::/32	4.3B × /64	APNIC	AU	13th Mar 2023
2400:eae0::/32	4.3B × /64	APNIC	IN	14th Mar 2023
2400:eb00::/32	4.3B × /64	APNIC	AU	27th May 2011
2400:eb20::/32	4.3B × /64	APNIC	BD	14th Mar 2023
2400:ebc0::/32	4.3B × /64	APNIC	CN	30th Mar 2017
2400:ebe0::/32	4.3B × /64	APNIC	TW	16th Mar 2023
2400:ec60::/32	4.3B × /64	APNIC	IN	16th Mar 2023
2400:ec80::/32	4.3B × /64	APNIC	SG	28th Apr 2014
2400:eca0::/32	4.3B × /64	APNIC	VN	16th Mar 2023
2400:ed40::/32	4.3B × /64	APNIC	VN	30th Mar 2017
2400:ed60::/32	4.3B × /64	APNIC	CN	20th Mar 2023
2400:ed80::/32	4.3B × /64	APNIC	AU	28th Apr 2014
2400:eda0::/32	4.3B × /64	APNIC	CN	20th Mar 2023
2400:edc0::/32	4.3B × /64	APNIC	CN	30th Mar 2017
2400:ee20::/32	4.3B × /64	APNIC	VN	21st Mar 2023
2400:ee40::/32	4.3B × /64	APNIC	HK	31st Mar 2017
2400:ee60::/32	4.3B × /64	APNIC	MN	21st Mar 2023
2400:eea0::/32	4.3B × /64	APNIC	VN	21st Mar 2023
2400:eec0::/32	4.3B × /64	APNIC	CN	31st Mar 2017
2400:ef00::/32	4.3B × /64	APNIC	HK	27th May 2011
2400:ef40::/32	4.3B × /64	APNIC	CN	31st Mar 2017
2400:ef60::/32	4.3B × /64	APNIC	MN	23rd Mar 2023
2400:efa0::/32	4.3B × /64	APNIC	PH	27th Mar 2023
2400:efc0::/32	4.3B × /64	APNIC	GB	31st Mar 2017
2400:f020::/32	4.3B × /64	APNIC	IN	28th Mar 2023
2400:f040::/32	4.3B × /64	APNIC	SG	31st Mar 2017
2400:f080::/32	4.3B × /64	APNIC	IN	30th Apr 2014