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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

556 blocks match, ordered by prefix.

Allocated but unannounced blocks, 451 to 500 of 556
PrefixAddressesRegistryCountryAllocated
2a12:4780::/324.3B × /64RIPE NCCAT22nd Nov 2021
2a12:61c0::/2934.4B × /64RIPE NCCAT24th Jan 2022
2a12:8b80::/324.3B × /64RIPE NCCAT3rd Mar 2026
2a12:9640::/2934.4B × /64RIPE NCCAT8th Mar 2022
2a12:af40::/2934.4B × /64RIPE NCCAT18th Mar 2022
2a12:f480::/2934.4B × /64RIPE NCCAT6th Dec 2021
2a12:f840::/2934.4B × /64RIPE NCCAT11th Mar 2026
2a13:1600::/2934.4B × /64RIPE NCCAT14th Jun 2022
2a13:5cc0::/2934.4B × /64RIPE NCCAT13th Dec 2022
2a13:af40::/324.3B × /64RIPE NCCAT17th Aug 2023
2a13:dd00::/2934.4B × /64RIPE NCCAT17th Feb 2023
2a13:e480::/2934.4B × /64RIPE NCCAT29th Mar 2023
2a14:3fc0::/2934.4B × /64RIPE NCCAT17th Apr 2024
2a14:7d00::/2934.4B × /64RIPE NCCAT24th Nov 2023
2a14:ef00::/2934.4B × /64RIPE NCCAT7th Feb 2025
37.10.112.0/24256RIPE NCCAT15th Dec 2011
37.44.220.0/221kRIPE NCCAT12th Nov 2018
45.12.160.0/221kRIPE NCCAT1st May 2019
45.12.232.0/221kRIPE NCCAT2nd May 2019
45.12.46.0/23512RIPE NCCAT30th Apr 2019
45.128.164.0/221kRIPE NCCAT12th Jul 2019
45.128.28.0/221kRIPE NCCAT11th Jul 2019
45.129.28.0/221kRIPE NCCAT15th Jul 2019
45.13.244.0/221kRIPE NCCAT7th May 2019
45.130.204.0/221kRIPE NCCAT18th Jul 2019
45.130.72.0/221kRIPE NCCAT17th Jul 2019
45.131.24.0/221kRIPE NCCAT18th Jul 2019
45.133.64.0/221kRIPE NCCAT24th Jul 2019
45.133.84.0/221kRIPE NCCAT25th Jul 2019
45.134.0.0/221kRIPE NCCAT26th Jul 2019
45.135.100.0/221kRIPE NCCAT30th Jul 2019
45.135.220.0/221kRIPE NCCAT31st Jul 2019
45.136.60.0/221kRIPE NCCAT1st Aug 2019
45.137.216.0/221kRIPE NCCAT6th Aug 2019
45.138.108.0/221kRIPE NCCAT7th Aug 2019
45.14.44.0/221kRIPE NCCAT7th May 2019
45.141.144.0/221kRIPE NCCAT15th Aug 2019
45.142.60.0/221kRIPE NCCAT16th Aug 2019
45.144.68.0/221kRIPE NCCAT22nd Aug 2019
45.145.192.0/221kRIPE NCCAT26th Aug 2019
45.145.80.0/221kRIPE NCCAT26th Aug 2019
45.148.128.0/221kRIPE NCCAT3rd Sept 2019
45.149.196.0/221kRIPE NCCAT5th Sept 2019
45.15.36.0/221kRIPE NCCAT10th May 2019
45.151.204.0/221kRIPE NCCAT10th Sept 2019
45.152.40.0/221kRIPE NCCAT11th Sept 2019
45.153.168.0/221kRIPE NCCAT13th Sept 2019
45.158.32.0/221kRIPE NCCAT27th Sept 2019
45.67.44.0/221kRIPE NCCAT15th Feb 2019
45.8.60.0/221kRIPE NCCAT12th Apr 2019