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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

945 blocks match, ordered by prefix.

Allocated but unannounced blocks, 801 to 850 of 945
PrefixAddressesRegistryCountryAllocated
2a12:5fc0::/2934.4B × /64RIPE NCCIT21st Jan 2022
2a12:64c0::/2934.4B × /64RIPE NCCIT27th Feb 2026
2a12:67c0::/2934.4B × /64RIPE NCCIT3rd Feb 2022
2a12:6a00::/2934.4B × /64RIPE NCCIT5th Nov 2021
2a12:6ec0::/2934.4B × /64RIPE NCCIT9th Feb 2022
2a12:95c0::/2934.4B × /64RIPE NCCIT7th Mar 2022
2a12:b640::/2934.4B × /64RIPE NCCIT24th Mar 2022
2a12:b6c0::/2934.4B × /64RIPE NCCIT25th Mar 2022
2a12:bd40::/2934.4B × /64RIPE NCCIT31st Mar 2022
2a12:c40::/2934.4B × /64RIPE NCCIT14th Dec 2021
2a12:c80::/2934.4B × /64RIPE NCCIT18th Nov 2021
2a12:f780::/324.3B × /64RIPE NCCIT6th Dec 2021
2a13:1280::/2934.4B × /64RIPE NCCIT10th Aug 2022
2a13:1a40::/2934.4B × /64RIPE NCCIT28th Oct 2022
2a13:3b40::/2934.4B × /64RIPE NCCIT21st Nov 2022
2a13:3e00::/324.3B × /64RIPE NCCIT20th Jun 2022
2a13:4280::/2934.4B × /64RIPE NCCIT25th Aug 2022
2a13:5440::/2934.4B × /64RIPE NCCIT7th Dec 2022
2a13:5b40::/2934.4B × /64RIPE NCCIT12th Dec 2022
2a13:7640::/2934.4B × /64RIPE NCCIT30th Dec 2022
2a13:8840::/2934.4B × /64RIPE NCCIT4th Jul 2023
2a13:9c00::/2934.4B × /64RIPE NCCIT20th Jan 2023
2a13:aa80::/2934.4B × /64RIPE NCCIT3rd Mar 2023
2a13:abc0::/2934.4B × /64RIPE NCCIT14th Aug 2023
2a13:cc00::/2934.4B × /64RIPE NCCIT24th Jan 2023
2a13:da80::/2934.4B × /64RIPE NCCIT24th Mar 2023
2a13:dc00::/2934.4B × /64RIPE NCCIT24th Jan 2023
2a13:e980::/2934.4B × /64RIPE NCCIT31st Mar 2023
2a13:e9c0::/2934.4B × /64RIPE NCCIT21st Sept 2023
2a13:ee00::/2934.4B × /64RIPE NCCIT3rd Feb 2023
2a13:fd80::/2934.4B × /64RIPE NCCIT13th Apr 2023
2a14:1140::/2934.4B × /64RIPE NCCIT4th Mar 2024
2a14:3340::/2934.4B × /64RIPE NCCIT3rd Apr 2024
2a14:4c80::/2934.4B × /64RIPE NCCIT20th Dec 2023
2a14:5b40::/2934.4B × /64RIPE NCCIT30th May 2024
2a14:5cc0::/2934.4B × /64RIPE NCCIT30th May 2024
2a14:70c0::/2934.4B × /64RIPE NCCIT26th Jun 2024
2a14:a780::/2934.4B × /64RIPE NCCIT5th Mar 2025
2a14:bf00::/2934.4B × /64RIPE NCCIT21st Jan 2025
2a14:c980::/2934.4B × /64RIPE NCCIT19th Mar 2025
2a14:d780::/2934.4B × /64RIPE NCCIT28th Mar 2025
2a14:e800::/2934.4B × /64RIPE NCCIT2nd Dec 2024
2a14:eb00::/2934.4B × /64RIPE NCCIT6th Feb 2025
2a14:f900::/2934.4B × /64RIPE NCCIT10th Feb 2025
2a14:f980::/2934.4B × /64RIPE NCCIT24th Apr 2025
37.128.136.0/212kRIPE NCCIT17th Feb 2012
37.32.104.0/212kRIPE NCCIT2nd Apr 2012
45.133.144.0/221kRIPE NCCIT25th Jul 2019
45.134.243.0/24256RIPE NCCIT26th Jan 2026
45.136.110.0/24256RIPE NCCIT31st Mar 2021