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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 53951 to 54000 of 85346
Prefix	Addresses	Registry	Country	Allocated
2401:2340::/32	4.3B × /64	APNIC	PK	15th May 2017
2401:2360::/32	4.3B × /64	APNIC	VN	9th Aug 2023
2401:23a0::/32	4.3B × /64	APNIC	VN	9th Aug 2023
2401:23c0::/32	4.3B × /64	APNIC	CN	16th May 2017
2401:23e0::/32	4.3B × /64	APNIC	VN	9th Aug 2023
2401:240::/32	4.3B × /64	APNIC	AU	23rd Apr 2017
2401:2480::/32	4.3B × /64	APNIC	AU	19th Jun 2014
2401:2560::/32	4.3B × /64	APNIC	IN	12th Aug 2023
2401:25e0::/32	4.3B × /64	APNIC	BD	14th Aug 2023
2401:2600::/32	4.3B × /64	APNIC	CN	30th Mar 2010
2401:260::/32	4.3B × /64	APNIC	ID	23rd May 2023
2401:26c0::/32	4.3B × /64	APNIC	AU	17th May 2017
2401:26e0::/32	4.3B × /64	APNIC	SG	15th Aug 2023
2401:2740::/32	4.3B × /64	APNIC	AU	18th May 2017
2401:2760::/32	4.3B × /64	APNIC	TW	17th Aug 2023
2401:27a0::/32	4.3B × /64	APNIC	IN	17th Aug 2023
2401:27e0::/32	4.3B × /64	APNIC	IN	17th Aug 2023
2401:2800::/32	4.3B × /64	APNIC	AU	12th May 2008
2401:280::/32	4.3B × /64	APNIC	HK	24th May 2014
2401:2820::/32	4.3B × /64	APNIC	IN	17th Aug 2023
2401:2840::/32	4.3B × /64	APNIC	AU	19th May 2017
2401:28a0::/32	4.3B × /64	APNIC	ID	18th Aug 2023
2401:2920::/32	4.3B × /64	APNIC	TW	18th Aug 2023
2401:2940::/32	4.3B × /64	APNIC	JP	22nd May 2017
2401:2980::/32	4.3B × /64	APNIC	CN	24th Jun 2014
2401:2a0::/32	4.3B × /64	APNIC	JP	23rd May 2023
2401:2a40::/32	4.3B × /64	APNIC	NZ	23rd May 2017
2401:2ac0::/32	4.3B × /64	APNIC	AU	23rd May 2017
2401:2b00::/32	4.3B × /64	APNIC	BD	14th Jun 2011
2401:2b40::/32	4.3B × /64	APNIC	CN	24th May 2017
2401:2b80::/32	4.3B × /64	APNIC	NP	30th Jun 2014
2401:2ba0::/32	4.3B × /64	APNIC	IN	24th Aug 2023
2401:2bc0::/32	4.3B × /64	APNIC	AU	24th May 2017
2401:2c20::/32	4.3B × /64	APNIC	VN	25th Aug 2023
2401:2c60::/32	4.3B × /64	APNIC	IN	25th Aug 2023
2401:2ca0::/32	4.3B × /64	APNIC	VN	25th Aug 2023
2401:2cc0::/32	4.3B × /64	APNIC	BD	24th May 2017
2401:2d20::/32	4.3B × /64	APNIC	VN	25th Aug 2023
2401:2d40::/32	4.3B × /64	APNIC	HK	24th May 2017
2401:2d80::/32	4.3B × /64	APNIC	IN	8th Jul 2014
2401:2da0::/32	4.3B × /64	APNIC	IN	29th Aug 2023
2401:2dc0::/32	4.3B × /64	APNIC	BD	24th May 2017
2401:2de0::/32	4.3B × /64	APNIC	ID	1st Sept 2023
2401:2e20::/32	4.3B × /64	APNIC	CN	1st Sept 2023
2401:2ec0::/32	4.3B × /64	APNIC	BD	25th May 2017
2401:2ee0::/32	4.3B × /64	APNIC	ID	4th Sept 2023
2401:2fe0::/32	4.3B × /64	APNIC	IN	5th Sept 2023
2401:3040::/32	4.3B × /64	APNIC	HK	26th May 2017
2401:3080::/32	4.3B × /64	APNIC	AU	13th Jul 2014
2401:30c0::/32	4.3B × /64	APNIC	PK	29th May 2017