subnet.im

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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,310 blocks match, ordered by prefix.

Allocated but unannounced blocks, 35151 to 35200 of 85310
PrefixAddressesRegistryCountryAllocated
2001:43fe:8000::/4865.5k × /64AFRINICGH9th Apr 2021
2001:43fe:800::/4865.5k × /64AFRINICRW16th Oct 2024
2001:43fe:8800::/4865.5k × /64AFRINICZW10th Oct 2025
2001:43fe:9000::/4865.5k × /64AFRINICZA8th Feb 2023
2001:43fe::/4865.5k × /64AFRINICZA25th Jan 2021
2001:43fe:a000::/4016.8M × /64AFRINICZA8th Oct 2021
2001:43fe:a800::/4865.5k × /64AFRINICEG21st Oct 2025
2001:43fe:b000::/4865.5k × /64AFRINICTZ7th Apr 2024
2001:43fe:c800::/4865.5k × /64AFRINICSN29th Oct 2025
2001:43fe:d000::/4865.5k × /64AFRINICZW14th Mar 2023
2001:43fe:e000::/4865.5k × /64AFRINICZA8th Jun 2022
2001:43ff:1000::/4865.5k × /64AFRINICMA28th Jun 2023
2001:43ff:2000::/4865.5k × /64AFRINICTZ19th Nov 2021
2001:43ff:2800::/4865.5k × /64AFRINICUG9th Jan 2026
2001:43ff:4000::/4865.5k × /64AFRINICZA28th Jul 2021
2001:43ff:4800::/4865.5k × /64AFRINICMW31st Mar 2026
2001:43ff:5000::/4865.5k × /64AFRINICBF18th Aug 2023
2001:43ff:6000::/4865.5k × /64AFRINICCD29th Jun 2022
2001:43ff:6800::/4865.5k × /64AFRINICBW20th Apr 2026
2001:43ff:7000::/4865.5k × /64AFRINICGH26th Jun 2024
2001:43ff:8000::/441M × /64AFRINICCM23rd Jun 2021
2001:43ff:800::/4865.5k × /64AFRINICNG12th Dec 2025
2001:43ff:8800::/4865.5k × /64AFRINICRW23rd Apr 2026
2001:43ff:9000::/4865.5k × /64AFRINICZA2nd Oct 2023
2001:43ff:a000::/4865.5k × /64AFRINICCI31st Mar 2022
2001:43ff:a800::/4865.5k × /64AFRINICRW21st May 2026
2001:43ff:b000::/4865.5k × /64AFRINICCM6th Aug 2024
2001:43ff:c000::/4865.5k × /64AFRINICRW27th Aug 2021
2001:43ff:c800::/4865.5k × /64AFRINICMA9th Jun 2026
2001:43ff:e000::/4865.5k × /64AFRINICZA12th Sept 2022
2001:43ff:e800::/4865.5k × /64AFRINICTZ17th Jul 2026
2001:43ff:f000::/4865.5k × /64AFRINICMW23rd Sept 2024
2001:4438::/324.3B × /64APNICCN15th Aug 2005
2001:4470::/324.3B × /64APNICMY27th Jul 2005
2001:447a::/318.6B × /64APNICAU25th May 2011
2001:44b0::/324.3B × /64APNICJP7th Nov 2005
2001:44c0::/324.3B × /64APNICIN8th Nov 2005
2001:44d0::/2868.7B × /64APNICKR10th Nov 2005
2001:44f0::/324.3B × /64APNICTW9th Dec 2005
2001:4508::/324.3B × /64APNICTW23rd Jan 2006
2001:4529::/324.3B × /64APNICIN20th Aug 2010
2001:452a::/318.6B × /64APNICIN20th Aug 2010
2001:4808::/324.3B × /64ARINUS15th Dec 2004
2001:48a0::/324.3B × /64ARINUS25th Apr 2005
2001:48b8::/324.3B × /64ARINUS13th May 2005
2001:490::/324.3B × /64ARINUS11th Jul 2001
2001:4918::/324.3B × /64ARINUS14th Jul 2005
2001:4920::/324.3B × /64ARINUS21st Jul 2005
2001:4960::/324.3B × /64ARINUS3rd Oct 2005
2001:4980::/324.3B × /64ARINUS25th Oct 2005