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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 34951 to 35000 of 85310
PrefixAddressesRegistryCountryAllocated
2001:43f8:150::/4865.5k × /64AFRINICRW18th Jun 2010
2001:43f8:1600::/4865.5k × /64AFRINICGH28th May 2020
2001:43f8:160::/4865.5k × /64AFRINICNG26th Aug 2010
2001:43f8:1630::/4865.5k × /64AFRINICCI9th Sept 2020
2001:43f8:1640::/4865.5k × /64AFRINICMW18th Sept 2020
2001:43f8:1650::/4865.5k × /64AFRINICGH28th Oct 2020
2001:43f8:1660::/4865.5k × /64AFRINICSS24th Feb 2022
2001:43f8:1661::/4865.5k × /64AFRINICSS18th Oct 2022
2001:43f8:1670::/4865.5k × /64AFRINICMA19th Jul 2022
2001:43f8:1680::/4865.5k × /64AFRINICZM20th Jul 2022
2001:43f8:1681::/4865.5k × /64AFRINICZM20th Jul 2022
2001:43f8:1690::/4865.5k × /64AFRINICNG3rd Oct 2022
2001:43f8:1691::/4865.5k × /64AFRINICNG3rd Oct 2022
2001:43f8:16a0::/4865.5k × /64AFRINICTD13th Oct 2022
2001:43f8:16a1::/4865.5k × /64AFRINICTD13th Oct 2022
2001:43f8:16b0::/4865.5k × /64AFRINICLY26th Oct 2022
2001:43f8:16c0::/4865.5k × /64AFRINICCV16th Nov 2022
2001:43f8:16c1::/4865.5k × /64AFRINICCV16th Nov 2022
2001:43f8:16d0::/4865.5k × /64AFRINICKE23rd Nov 2022
2001:43f8:16e0::/4865.5k × /64AFRINICZA28th Apr 2025
2001:43f8:1710::/4865.5k × /64AFRINICET9th Mar 2023
2001:43f8:1711::/4865.5k × /64AFRINICET9th Mar 2023
2001:43f8:1720::/4865.5k × /64AFRINICMW29th May 2024
2001:43f8:1721::/4865.5k × /64AFRINICMW9th Dec 2025
2001:43f8:1730::/4865.5k × /64AFRINICBJ27th Jun 2025
2001:43f8:1731::/4865.5k × /64AFRINICBJ27th Jun 2025
2001:43f8:1740::/4865.5k × /64AFRINICGH29th Feb 2024
2001:43f8:1750::/4865.5k × /64AFRINICSN15th Oct 2024
2001:43f8:1751::/4865.5k × /64AFRINICSN15th Oct 2024
2001:43f8:1771::/4865.5k × /64AFRINICKE6th Jan 2025
2001:43f8:17a0::/4865.5k × /64AFRINICSN15th Feb 2024
2001:43f8:17e0::/4865.5k × /64AFRINICKE9th Dec 2025
2001:43f8:17e1::/4865.5k × /64AFRINICKE9th Dec 2025
2001:43f8:17e2::/4865.5k × /64AFRINICKE9th Dec 2025
2001:43f8:17e3::/4865.5k × /64AFRINICKE9th Dec 2025
2001:43f8:180::/4865.5k × /64AFRINICNG22nd Sept 2010
2001:43f8:190::/4865.5k × /64AFRINICNG2nd Jul 2013
2001:43f8:1a00::/4865.5k × /64AFRINICGH3rd Jul 2025
2001:43f8:1a0::/4865.5k × /64AFRINICGH13th Oct 2010
2001:43f8:1a10::/4865.5k × /64AFRINICGH3rd Jul 2025
2001:43f8:1a20::/4865.5k × /64AFRINICUG9th Dec 2025
2001:43f8:1a21::/4865.5k × /64AFRINICUG9th Dec 2025
2001:43f8:1a30::/4865.5k × /64AFRINICSL9th Dec 2025
2001:43f8:1a31::/4865.5k × /64AFRINICSL9th Dec 2025
2001:43f8:1b0::/4865.5k × /64AFRINICZA27th Mar 2015
2001:43f8:1e0::/4865.5k × /64AFRINICNG27th Jan 2011
2001:43f8:1f0::/47131k × /64AFRINICZA2nd Feb 2011
2001:43f8:1f2::/4865.5k × /64AFRINICZA16th Jul 2012
2001:43f8:200::/4865.5k × /64AFRINICKE8th Mar 2011
2001:43f8:210::/4865.5k × /64AFRINICLS8th Mar 2011