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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

1,174 blocks match, ordered by prefix.

Allocated but unannounced blocks, 451 to 500 of 1174
Prefix	Addresses	Registry	Country	Allocated
2001:df4:3540::/48	65.5k × /64	APNIC	BD	26th Aug 2024
2001:df4:3800::/48	65.5k × /64	APNIC	BD	1st Apr 2014
2001:df4:3b40::/48	65.5k × /64	APNIC	BD	3rd Sept 2024
2001:df4:3c00::/48	65.5k × /64	APNIC	BD	26th May 2015
2001:df4:3f80::/48	65.5k × /64	APNIC	BD	16th Jul 2020
2001:df4:3fc0::/48	65.5k × /64	APNIC	BD	9th Sept 2024
2001:df4:41c0::/48	65.5k × /64	APNIC	BD	11th Sept 2024
2001:df4:4540::/48	65.5k × /64	APNIC	BD	18th Sept 2024
2001:df4:4dc0::/48	65.5k × /64	APNIC	BD	23rd Sept 2024
2001:df4:4f40::/48	65.5k × /64	APNIC	BD	24th Sept 2024
2001:df4:4fc0::/48	65.5k × /64	APNIC	BD	25th Sept 2024
2001:df4:5280::/48	65.5k × /64	APNIC	BD	24th Jul 2020
2001:df4:52c0::/48	65.5k × /64	APNIC	BD	27th Sept 2024
2001:df4:5980::/48	65.5k × /64	APNIC	BD	27th Jul 2020
2001:df4:5b80::/48	65.5k × /64	APNIC	BD	28th Jul 2020
2001:df4:62c0::/48	65.5k × /64	APNIC	BD	9th Oct 2024
2001:df4:6640::/48	65.5k × /64	APNIC	BD	10th Oct 2024
2001:df4:6880::/48	65.5k × /64	APNIC	BD	6th Aug 2020
2001:df4:69c0::/48	65.5k × /64	APNIC	BD	13th Oct 2024
2001:df4:74c0::/48	65.5k × /64	APNIC	BD	21st Oct 2024
2001:df4:7c40::/48	65.5k × /64	APNIC	BD	24th Oct 2024
2001:df4:8300::/48	65.5k × /64	APNIC	BD	19th Mar 2018
2001:df4:8441::/48	65.5k × /64	APNIC	BD	3rd Dec 2025
2001:df4:87c0::/48	65.5k × /64	APNIC	BD	30th Oct 2024
2001:df4:8940::/48	65.5k × /64	APNIC	BD	2nd Nov 2024
2001:df4:8d80::/48	65.5k × /64	APNIC	BD	12th Aug 2020
2001:df4:8f40::/48	65.5k × /64	APNIC	BD	6th Nov 2024
2001:df4:8f80::/48	65.5k × /64	APNIC	BD	13th Aug 2020
2001:df4:9040::/48	65.5k × /64	APNIC	BD	6th Nov 2024
2001:df4:9080::/48	65.5k × /64	APNIC	BD	13th Aug 2020
2001:df4:9340::/48	65.5k × /64	APNIC	BD	10th Nov 2024
2001:df4:980::/48	65.5k × /64	APNIC	BD	22nd Jun 2020
2001:df4:a040::/48	65.5k × /64	APNIC	BD	14th Nov 2024
2001:df4:a3c0::/48	65.5k × /64	APNIC	BD	20th Nov 2024
2001:df4:a4c0::/48	65.5k × /64	APNIC	BD	21st Nov 2024
2001:df4:a580::/48	65.5k × /64	APNIC	BD	19th Aug 2020
2001:df4:a6c0::/48	65.5k × /64	APNIC	BD	21st Nov 2024
2001:df4:a7c0::/48	65.5k × /64	APNIC	BD	22nd Nov 2024
2001:df4:ab80::/48	65.5k × /64	APNIC	BD	25th Aug 2020
2001:df4:ad40::/48	65.5k × /64	APNIC	BD	26th Nov 2024
2001:df4:afc0::/48	65.5k × /64	APNIC	BD	28th Nov 2024
2001:df4:b080::/48	65.5k × /64	APNIC	BD	27th Aug 2020
2001:df4:b580::/48	65.5k × /64	APNIC	BD	31st Aug 2020
2001:df4:b980::/48	65.5k × /64	APNIC	BD	2nd Sept 2020
2001:df4:bfc0::/48	65.5k × /64	APNIC	BD	11th Dec 2024
2001:df4:c080::/48	65.5k × /64	APNIC	BD	4th Sept 2020
2001:df4:c0::/48	65.5k × /64	APNIC	BD	1st Jul 2024
2001:df4:c440::/48	65.5k × /64	APNIC	BD	13th Dec 2024
2001:df4:cc40::/48	65.5k × /64	APNIC	BD	20th Dec 2024
2001:df4:cd40::/48	65.5k × /64	APNIC	BD	23rd Dec 2024