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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Browse by registry

Browse by country

Countries with the most unannounced blocks, largest first.

Unannounced blocks in United States

26,955 blocks match, ordered by prefix.

Allocated but unannounced blocks, 20901 to 20950 of 26955
PrefixAddressesRegistryCountryAllocated
2602:f496::/4016.8M × /64ARINUS16th Dec 2025
2602:f497::/4016.8M × /64ARINUS16th Dec 2025
2602:f498::/4016.8M × /64ARINUS12th Dec 2025
2602:f499::/4016.8M × /64ARINUS12th Dec 2025
2602:f49c::/4016.8M × /64ARINUS10th Dec 2025
2602:f49d::/4016.8M × /64ARINUS9th Dec 2025
2602:f49e::/4016.8M × /64ARINUS9th Dec 2025
2602:f4a0::/4016.8M × /64ARINUS8th Dec 2025
2602:f4a1::/4016.8M × /64ARINUS8th Dec 2025
2602:f4a2::/36268M × /64ARINUS5th Dec 2025
2602:f4a4::/4016.8M × /64ARINUS4th Dec 2025
2602:f4a5::/4016.8M × /64ARINUS4th Dec 2025
2602:f4a6::/4016.8M × /64ARINUS4th Dec 2025
2602:f4a7::/4016.8M × /64ARINUS4th Dec 2025
2602:f4a9::/36268M × /64ARINUS3rd Dec 2025
2602:f4aa::/4016.8M × /64ARINUS3rd Dec 2025
2602:f4ac::/4016.8M × /64ARINUS1st Dec 2025
2602:f4ad::/4016.8M × /64ARINUS1st Dec 2025
2602:f4ae::/4016.8M × /64ARINUS1st Dec 2025
2602:f4af::/4016.8M × /64ARINUS1st Dec 2025
2602:f4b0::/4016.8M × /64ARINUS25th Nov 2025
2602:f4b2::/4016.8M × /64ARINUS25th Nov 2025
2602:f4b3::/4016.8M × /64ARINUS25th Nov 2025
2602:f4b4::/4016.8M × /64ARINUS25th Nov 2025
2602:f4b5::/4016.8M × /64ARINUS25th Nov 2025
2602:f4b6::/4016.8M × /64ARINUS25th Nov 2025
2602:f4b7::/4016.8M × /64ARINUS25th Nov 2025
2602:f4b8::/4016.8M × /64ARINUS25th Nov 2025
2602:f4ba::/4016.8M × /64ARINUS21st Nov 2025
2602:f4bb::/4016.8M × /64ARINUS21st Nov 2025
2602:f4bc::/4016.8M × /64ARINUS20th Nov 2025
2602:f4bd::/4016.8M × /64ARINUS20th Nov 2025
2602:f4be::/4016.8M × /64ARINUS20th Nov 2025
2602:f4bf::/4016.8M × /64ARINUS20th Nov 2025
2602:f4c0::/4016.8M × /64ARINUS20th Nov 2025
2602:f4c1::/36268M × /64ARINUS20th Nov 2025
2602:f4c2::/36268M × /64ARINUS18th Nov 2025
2602:f4c3::/36268M × /64ARINUS18th Nov 2025
2602:f4c4::/4016.8M × /64ARINUS18th Nov 2025
2602:f4c5::/36268M × /64ARINUS17th Nov 2025
2602:f4c6::/36268M × /64ARINUS14th Nov 2025
2602:f4c8::/4016.8M × /64ARINUS14th Nov 2025
2602:f4c9::/4016.8M × /64ARINUS14th Nov 2025
2602:f4cc::/4016.8M × /64ARINUS12th Nov 2025
2602:f4cd::/4016.8M × /64ARINUS12th Nov 2025
2602:f4cf::/4016.8M × /64ARINUS10th Nov 2025
2602:f4d0::/4016.8M × /64ARINUS10th Nov 2025
2602:f4d1::/4016.8M × /64ARINUS10th Nov 2025
2602:f4d4::/4016.8M × /64ARINUS7th Nov 2025
2602:f4d5::/4016.8M × /64ARINUS7th Nov 2025