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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,239 blocks match, ordered by prefix.

Allocated but unannounced blocks, 65251 to 65300 of 85239
Prefix	Addresses	Registry	Country	Allocated
2803:5400::/32	4.3B × /64	LACNIC	AR	10th Apr 2012
2803:5410::/32	4.3B × /64	LACNIC	AR	2nd Feb 2021
2803:5420::/32	4.3B × /64	LACNIC	CR	18th Sept 2017
2803:5430::/32	4.3B × /64	LACNIC	CL	4th Feb 2026
2803:5490::/32	4.3B × /64	LACNIC	AR	15th Jul 2022
2803:54a0::/32	4.3B × /64	LACNIC	CL	13th Jun 2018
2803:54c0::/32	4.3B × /64	LACNIC	GT	31st Oct 2016
2803:54d0::/32	4.3B × /64	LACNIC	AR	23rd Dec 2024
2803:54e0::/32	4.3B × /64	LACNIC	AR	7th Jan 2020
2803:5530::/32	4.3B × /64	LACNIC	CO	26th Jun 2026
2803:5540::/32	4.3B × /64	LACNIC	AR	27th Jan 2016
2803:5580::/32	4.3B × /64	LACNIC	CR	16th Jul 2014
2803:55d0::/32	4.3B × /64	LACNIC	CL	1st Aug 2025
2803:560::/32	4.3B × /64	LACNIC	AR	13th Aug 2019
2803:5630::/32	4.3B × /64	LACNIC	PE	16th Apr 2026
2803:5640::/32	4.3B × /64	LACNIC	CO	17th Sept 2015
2803:5650::/32	4.3B × /64	LACNIC	VE	2nd Apr 2024
2803:5660::/32	4.3B × /64	LACNIC	AR	13th Jun 2019
2803:5690::/32	4.3B × /64	LACNIC	AR	31st Oct 2022
2803:5710::/32	4.3B × /64	LACNIC	CL	30th Mar 2022
2803:5720::/32	4.3B × /64	LACNIC	AR	23rd Mar 2018
2803:5750::/32	4.3B × /64	LACNIC	PE	17th Sept 2024
2803:57a0::/32	4.3B × /64	LACNIC	AR	25th Feb 2019
2803:57c0::/32	4.3B × /64	LACNIC	EC	12th Jul 2017
2803:57d0::/32	4.3B × /64	LACNIC	AR	7th Nov 2025
2803:57e0::/32	4.3B × /64	LACNIC	AR	27th Aug 2020
2803:5820::/32	4.3B × /64	LACNIC	AR	1st Sept 2017
2803:5830::/32	4.3B × /64	LACNIC	AR	9th Jan 2026
2803:5860::/32	4.3B × /64	LACNIC	AR	9th Apr 2019
2803:58a0::/32	4.3B × /64	LACNIC	PA	23rd May 2018
2803:58c0::/32	4.3B × /64	LACNIC	AR	28th Sept 2016
2803:5920::/32	4.3B × /64	LACNIC	AR	18th Dec 2017
2803:5930::/32	4.3B × /64	LACNIC	CL	10th Jun 2026
2803:5950::/32	4.3B × /64	LACNIC	AR	24th May 2024
2803:5990::/32	4.3B × /64	LACNIC	VE	17th Feb 2023
2803:59c0::/32	4.3B × /64	LACNIC	EC	20th Apr 2017
2803:59d0::/32	4.3B × /64	LACNIC	DO	27th Jun 2025
2803:5a0::/32	4.3B × /64	LACNIC	VE	19th Nov 2018
2803:5a50::/32	4.3B × /64	LACNIC	PE	22nd Feb 2024
2803:5a60::/32	4.3B × /64	LACNIC	PY	6th Jun 2019
2803:5aa0::/32	4.3B × /64	LACNIC	AR	2nd Aug 2018
2803:5b00::/32	4.3B × /64	LACNIC	CR	22nd May 2013
2803:5b30::/32	4.3B × /64	LACNIC	CO	20th Aug 2026
2803:5b60::/32	4.3B × /64	LACNIC	AR	11th Oct 2019
2803:5bc0::/32	4.3B × /64	LACNIC	AR	30th Jun 2017
2803:5bd0::/32	4.3B × /64	LACNIC	AR	17th Oct 2025
2803:5be0::/32	4.3B × /64	LACNIC	CO	13th Aug 2020
2803:5c00::/32	4.3B × /64	LACNIC	BO	14th May 2012
2803:5c0::/32	4.3B × /64	LACNIC	AR	26th Apr 2017
2803:5c10::/32	4.3B × /64	LACNIC	AR	11th Mar 2021