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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through RIPE NCC, largest first.

Unannounced blocks in Italy

934 blocks match, ordered by prefix.

Allocated but unannounced blocks, 601 to 650 of 934
PrefixAddressesRegistryCountryAllocated
2a0a:da00::/2934.4B × /64RIPE NCCIT21st Jan 2026
2a0a:df40::/2934.4B × /64RIPE NCCIT11th May 2017
2a0a:e540::/324.3B × /64RIPE NCCIT9th Jun 2020
2a0a:fb40::/2934.4B × /64RIPE NCCIT15th Jan 2020
2a0b:17c0::/2934.4B × /64RIPE NCCIT22nd May 2023
2a0b:1840::/2934.4B × /64RIPE NCCIT26th Jun 2019
2a0b:19c0::/2934.4B × /64RIPE NCCIT26th Jan 2024
2a0b:2100::/2934.4B × /64RIPE NCCIT13th Oct 2016
2a0b:2c00::/2934.4B × /64RIPE NCCIT19th Aug 2016
2a0b:3040::/324.3B × /64RIPE NCCIT13th Jun 2017
2a0b:3440::/2934.4B × /64RIPE NCCIT14th Jun 2017
2a0b:3f00::/2934.4B × /64RIPE NCCIT17th Oct 2016
2a0b:400::/2934.4B × /64RIPE NCCIT19th Aug 2016
2a0b:4640::/2934.4B × /64RIPE NCCIT21st Jun 2017
2a0b:46c0::/2934.4B × /64RIPE NCCIT1st Apr 2019
2a0b:67c0::/2934.4B × /64RIPE NCCIT27th Jan 2026
2a0b:7700::/2934.4B × /64RIPE NCCIT20th Oct 2016
2a0b:780::/2934.4B × /64RIPE NCCIT24th Jul 2026
2a0b:7c0::/2934.4B × /64RIPE NCCIT29th May 2017
2a0b:9680::/2934.4B × /64RIPE NCCIT24th Jan 2017
2a0b:9980::/2934.4B × /64RIPE NCCIT20th Nov 2019
2a0b:ba00::/2934.4B × /64RIPE NCCIT29th Apr 2024
2a0b:bac0::/2934.4B × /64RIPE NCCIT29th Jan 2026
2a0b:d180::/2934.4B × /64RIPE NCCIT28th Nov 2019
2a0b:e040::/2934.4B × /64RIPE NCCIT28th Aug 2017
2a0b:e400::/2934.4B × /64RIPE NCCIT24th Aug 2016
2a0b:ea00::/324.3B × /64RIPE NCCIT15th Sept 2016
2a0b:eec0::/324.3B × /64RIPE NCCIT8th Sept 2017
2a0b:ff40::/2934.4B × /64RIPE NCCIT14th Sept 2017
2a0c:2f80::/2934.4B × /64RIPE NCCIT22nd Dec 2017
2a0c:3080::/324.3B × /64RIPE NCCIT22nd Dec 2017
2a0c:3180::/2934.4B × /64RIPE NCCIT27th Dec 2017
2a0c:3640::/2934.4B × /64RIPE NCCIT3rd Apr 2018
2a0c:3cc0::/2934.4B × /64RIPE NCCIT14th Apr 2026
2a0c:3f00::/2934.4B × /64RIPE NCCIT9th Nov 2017
2a0c:4040::/2934.4B × /64RIPE NCCIT5th Apr 2018
2a0c:42c0::/2934.4B × /64RIPE NCCIT5th Apr 2018
2a0c:48c0::/2934.4B × /64RIPE NCCIT6th Apr 2018
2a0c:50c0::/2934.4B × /64RIPE NCCIT10th Apr 2018
2a0c:5280::/2934.4B × /64RIPE NCCIT3rd Jan 2018
2a0c:5c00::/2934.4B × /64RIPE NCCIT4th Oct 2017
2a0c:6dc0::/2934.4B × /64RIPE NCCIT7th Aug 2026
2a0c:7d40::/324.3B × /64RIPE NCCIT24th Apr 2018
2a0c:80c0::/324.3B × /64RIPE NCCIT27th Jan 2021
2a0c:8b00::/324.3B × /64RIPE NCCIT14th Nov 2017
2a0c:8ec0::/2934.4B × /64RIPE NCCIT30th Apr 2018
2a0c:9340::/2934.4B × /64RIPE NCCIT1st May 2018
2a0c:9580::/2934.4B × /64RIPE NCCIT7th Jul 2020
2a0c:9d00::/2934.4B × /64RIPE NCCIT15th Nov 2017
2a0c:a00::/2934.4B × /64RIPE NCCIT16th Oct 2017