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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

1,567 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1251 to 1300 of 1567
Prefix	Addresses	Registry	Country	Allocated
2804:812c::/32	4.3B × /64	LACNIC	BR	16th Jun 2021
2804:8238::/32	4.3B × /64	LACNIC	BR	4th Aug 2021
2804:824c::/32	4.3B × /64	LACNIC	BR	5th Aug 2021
2804:8264::/32	4.3B × /64	LACNIC	BR	9th Aug 2021
2804:82c0::/32	4.3B × /64	LACNIC	BR	20th Aug 2021
2804:830c::/32	4.3B × /64	LACNIC	BR	8th Sept 2021
2804:8314::/32	4.3B × /64	LACNIC	BR	8th Sept 2021
2804:8324::/32	4.3B × /64	LACNIC	BR	10th Sept 2021
2804:838c::/32	4.3B × /64	LACNIC	BR	8th Oct 2021
2804:8390::/32	4.3B × /64	LACNIC	BR	13th Oct 2021
2804:8398::/32	4.3B × /64	LACNIC	BR	13th Oct 2021
2804:83a4::/32	4.3B × /64	LACNIC	BR	14th Oct 2021
2804:8418::/32	4.3B × /64	LACNIC	BR	4th Nov 2021
2804:847c::/32	4.3B × /64	LACNIC	BR	18th Nov 2021
2804:848c::/32	4.3B × /64	LACNIC	BR	19th Nov 2021
2804:8514::/32	4.3B × /64	LACNIC	BR	13th Dec 2021
2804:8544::/32	4.3B × /64	LACNIC	BR	22nd Dec 2021
2804:8554::/32	4.3B × /64	LACNIC	BR	30th Dec 2021
2804:855c::/32	4.3B × /64	LACNIC	BR	7th Jan 2022
2804:85a0::/32	4.3B × /64	LACNIC	BR	31st Jan 2022
2804:860::/32	4.3B × /64	LACNIC	BR	27th Jan 2012
2804:8648::/32	4.3B × /64	LACNIC	BR	16th Mar 2022
2804:8694::/32	4.3B × /64	LACNIC	BR	11th Apr 2022
2804:86a0::/32	4.3B × /64	LACNIC	BR	13th Apr 2022
2804:86e4::/32	4.3B × /64	LACNIC	BR	29th Apr 2022
2804:8754::/32	4.3B × /64	LACNIC	BR	26th May 2022
2804:87c8::/32	4.3B × /64	LACNIC	BR	28th Jun 2022
2804:8818::/32	4.3B × /64	LACNIC	BR	14th Jul 2022
2804:8848::/32	4.3B × /64	LACNIC	BR	28th Jul 2022
2804:884::/32	4.3B × /64	LACNIC	BR	6th Feb 2012
2804:88a4::/32	4.3B × /64	LACNIC	BR	17th Aug 2022
2804:8960::/32	4.3B × /64	LACNIC	BR	11th Oct 2022
2804:898c::/32	4.3B × /64	LACNIC	BR	31st Oct 2022
2804:89c4::/32	4.3B × /64	LACNIC	BR	16th Nov 2022
2804:89ec::/32	4.3B × /64	LACNIC	BR	23rd Nov 2022
2804:8a08::/32	4.3B × /64	LACNIC	BR	1st Dec 2022
2804:8a0::/32	4.3B × /64	LACNIC	BR	10th Feb 2012
2804:8a38::/32	4.3B × /64	LACNIC	BR	16th Dec 2022
2804:8a48::/32	4.3B × /64	LACNIC	BR	19th Dec 2022
2804:8a4c::/32	4.3B × /64	LACNIC	BR	21st Dec 2022
2804:8ad4::/32	4.3B × /64	LACNIC	BR	23rd Feb 2023
2804:8ae8::/32	4.3B × /64	LACNIC	BR	28th Feb 2023
2804:8b0c::/32	4.3B × /64	LACNIC	BR	14th Mar 2023
2804:8b4::/32	4.3B × /64	LACNIC	BR	17th Feb 2012
2804:8b80::/32	4.3B × /64	LACNIC	BR	14th Apr 2023
2804:8bb4::/32	4.3B × /64	LACNIC	BR	8th May 2023
2804:8bb8::/32	4.3B × /64	LACNIC	BR	9th May 2023
2804:8bc::/32	4.3B × /64	LACNIC	BR	17th Feb 2012
2804:8bd0::/32	4.3B × /64	LACNIC	BR	24th May 2023
2804:8bd4::/32	4.3B × /64	LACNIC	BR	24th May 2023