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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

1,174 blocks match, ordered by prefix.

Allocated but unannounced blocks, 851 to 900 of 1174
Prefix	Addresses	Registry	Country	Allocated
2401:160::/32	4.3B × /64	APNIC	BD	22nd May 2023
2401:1901::/32	4.3B × /64	APNIC	BD	3rd Jun 2024
2401:1920::/32	4.3B × /64	APNIC	BD	14th Jul 2023
2401:1980::/32	4.3B × /64	APNIC	BD	13th Jun 2014
2401:1c20::/32	4.3B × /64	APNIC	BD	21st Jul 2023
2401:1e40::/32	4.3B × /64	APNIC	BD	8th May 2017
2401:20c0::/32	4.3B × /64	APNIC	BD	12th May 2017
2401:2140::/32	4.3B × /64	APNIC	BD	12th May 2017
2401:25e0::/32	4.3B × /64	APNIC	BD	14th Aug 2023
2401:2b00::/32	4.3B × /64	APNIC	BD	14th Jun 2011
2401:2cc0::/32	4.3B × /64	APNIC	BD	24th May 2017
2401:2dc0::/32	4.3B × /64	APNIC	BD	24th May 2017
2401:2ec0::/32	4.3B × /64	APNIC	BD	25th May 2017
2401:3420::/32	4.3B × /64	APNIC	BD	7th Sept 2023
2401:3fc0::/32	4.3B × /64	APNIC	BD	6th Jun 2017
2401:4460::/32	4.3B × /64	APNIC	BD	12th Oct 2023
2401:4560::/32	4.3B × /64	APNIC	BD	13th Oct 2023
2401:46a0::/32	4.3B × /64	APNIC	BD	16th Oct 2023
2401:4820::/32	4.3B × /64	APNIC	BD	18th Oct 2023
2401:5020::/32	4.3B × /64	APNIC	BD	16th Nov 2023
2401:52a0::/32	4.3B × /64	APNIC	BD	24th Nov 2023
2401:52e0::/32	4.3B × /64	APNIC	BD	27th Nov 2023
2401:5340::/32	4.3B × /64	APNIC	BD	13th Jun 2017
2401:5800::/32	4.3B × /64	APNIC	BD	21st May 2008
2401:580::/32	4.3B × /64	APNIC	BD	27th May 2014
2401:59e0::/32	4.3B × /64	APNIC	BD	12th Dec 2023
2401:5d00::/32	4.3B × /64	APNIC	BD	4th Jul 2011
2401:5e0::/32	4.3B × /64	APNIC	BD	5th Jun 2023
2401:5f60::/32	4.3B × /64	APNIC	BD	28th Dec 2023
2401:72a0::/32	4.3B × /64	APNIC	BD	4th Jan 2024
2401:7460::/32	4.3B × /64	APNIC	BD	12th Jan 2024
2401:7940::/32	4.3B × /64	APNIC	BD	5th Jul 2017
2401:7960::/32	4.3B × /64	APNIC	BD	23rd Jan 2024
2401:79e0::/32	4.3B × /64	APNIC	BD	24th Jan 2024
2401:80a0::/32	4.3B × /64	APNIC	BD	16th Feb 2024
2401:85a0::/32	4.3B × /64	APNIC	BD	4th Mar 2024
2401:86c0::/32	4.3B × /64	APNIC	BD	19th Jul 2017
2401:8860::/32	4.3B × /64	APNIC	BD	12th Mar 2024
2401:8de0::/32	4.3B × /64	APNIC	BD	28th Mar 2024
2401:92c0::/32	4.3B × /64	APNIC	BD	31st Jul 2017
2401:9460::/32	4.3B × /64	APNIC	BD	15th Apr 2024
2401:94c0::/32	4.3B × /64	APNIC	BD	2nd Aug 2017
2401:a20::/32	4.3B × /64	APNIC	BD	12th Jun 2023
2401:a220::/32	4.3B × /64	APNIC	BD	24th May 2024
2401:a2c0::/32	4.3B × /64	APNIC	BD	16th Aug 2017
2401:a5a0::/32	4.3B × /64	APNIC	BD	10th Jun 2024
2401:a840::/32	4.3B × /64	APNIC	BD	18th Aug 2017
2401:aac0::/32	4.3B × /64	APNIC	BD	21st Aug 2017
2401:aec0::/32	4.3B × /64	APNIC	BD	24th Aug 2017
2401:b2a0::/32	4.3B × /64	APNIC	BD	12th Jul 2024