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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

1,204 blocks match, ordered by prefix.

Allocated but unannounced blocks, 951 to 1000 of 1204
Prefix	Addresses	Registry	Country	Allocated
2401:f1c0::/32	4.3B × /64	APNIC	BD	3rd Nov 2017
2401:fda0::/32	4.3B × /64	APNIC	BD	11th Apr 2025
2402:1340::/32	4.3B × /64	APNIC	BD	27th Nov 2017
2402:19a0::/32	4.3B × /64	APNIC	BD	18th Jul 2025
2402:1bc0::/32	4.3B × /64	APNIC	BD	30th Nov 2017
2402:24e0::/32	4.3B × /64	APNIC	BD	20th Aug 2025
2402:25e0::/32	4.3B × /64	APNIC	BD	27th Aug 2025
2402:27a0::/32	4.3B × /64	APNIC	BD	4th Sept 2025
2402:2920::/32	4.3B × /64	APNIC	BD	9th Sept 2025
2402:2cc0::/32	4.3B × /64	APNIC	BD	7th Dec 2017
2402:2d60::/32	4.3B × /64	APNIC	BD	22nd Sept 2025
2402:34a0::/32	4.3B × /64	APNIC	BD	27th Oct 2025
2402:35e0::/32	4.3B × /64	APNIC	BD	31st Oct 2025
2402:3620::/32	4.3B × /64	APNIC	BD	1st Nov 2025
2402:3e20::/32	4.3B × /64	APNIC	BD	10th Dec 2025
2402:420::/32	4.3B × /64	APNIC	BD	24th Apr 2025
2402:42a0::/32	4.3B × /64	APNIC	BD	22nd Dec 2025
2402:46a0::/32	4.3B × /64	APNIC	BD	8th Jan 2026
2402:4720::/32	4.3B × /64	APNIC	BD	9th Jan 2026
2402:48c0::/32	4.3B × /64	APNIC	BD	5th Jan 2018
2402:4940::/32	4.3B × /64	APNIC	BD	5th Jan 2018
2402:4b20::/32	4.3B × /64	APNIC	BD	27th Jan 2026
2402:4da0::/32	4.3B × /64	APNIC	BD	11th Feb 2026
2402:5440::/32	4.3B × /64	APNIC	BD	11th Jan 2018
2402:5460::/32	4.3B × /64	APNIC	BD	1st Apr 2026
2402:55c0::/32	4.3B × /64	APNIC	BD	15th Jan 2018
2402:5b20::/32	4.3B × /64	APNIC	BD	30th Apr 2026
2402:5fc0::/32	4.3B × /64	APNIC	BD	19th Jan 2018
2402:6220::/32	4.3B × /64	APNIC	BD	7th Jun 2026
2402:62a0::/32	4.3B × /64	APNIC	BD	8th Jun 2026
2402:68a0::/32	4.3B × /64	APNIC	BD	21st Jul 2026
2402:68e0::/32	4.3B × /64	APNIC	BD	21st Jul 2026
2402:6920::/32	4.3B × /64	APNIC	BD	23rd Jul 2026
2402:69e0::/32	4.3B × /64	APNIC	BD	28th Jul 2026
2402:6ee0::/32	4.3B × /64	APNIC	BD	14th Aug 2026
2402:77c0::/32	4.3B × /64	APNIC	BD	12th Feb 2018
2402:8340::/32	4.3B × /64	APNIC	BD	28th Feb 2018
2402:88c0::/32	4.3B × /64	APNIC	BD	5th Mar 2018
2402:960::/32	4.3B × /64	APNIC	BD	13th May 2025
2402:9780::/32	4.3B × /64	APNIC	BD	20th Jul 2015
2402:99c0::/32	4.3B × /64	APNIC	BD	15th Mar 2018
2402:9e0::/32	4.3B × /64	APNIC	BD	13th May 2025
2402:a4c0::/32	4.3B × /64	APNIC	BD	24th Mar 2018
2402:abc0::/32	4.3B × /64	APNIC	BD	3rd Apr 2018
2402:b1c0::/32	4.3B × /64	APNIC	BD	5th Apr 2018
2402:b2c0::/32	4.3B × /64	APNIC	BD	6th Apr 2018
2402:bc0::/32	4.3B × /64	APNIC	BD	24th Nov 2017
2402:bc40::/32	4.3B × /64	APNIC	BD	12th Apr 2018
2402:bd40::/32	4.3B × /64	APNIC	BD	12th Apr 2018
2402:bf40::/32	4.3B × /64	APNIC	BD	13th Apr 2018