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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

710 blocks match, ordered by prefix.

Allocated but unannounced blocks, 401 to 450 of 710
PrefixAddressesRegistryCountryAllocated
2a0b:c100::/2934.4B × /64RIPE NCCIR26th Oct 2016
2a0b:d300::/2934.4B × /64RIPE NCCIR21st Jun 2019
2a0b:d400::/2934.4B × /64RIPE NCCIR24th Aug 2016
2a0b:d8c0::/2934.4B × /64RIPE NCCIR23rd Aug 2017
2a0b:e000::/2934.4B × /64RIPE NCCIR3rd Aug 2026
2a0b:f80::/2934.4B × /64RIPE NCCIR27th Dec 2016
2a0c:100::/2934.4B × /64RIPE NCCIR6th Nov 2017
2a0c:1740::/2934.4B × /64RIPE NCCIR22nd Mar 2018
2a0c:2200::/2934.4B × /64RIPE NCCIR18th Mar 2024
2a0c:3680::/2934.4B × /64RIPE NCCIR27th Dec 2017
2a0c:3880::/2934.4B × /64RIPE NCCIR27th Dec 2017
2a0c:4000::/324.3B × /64RIPE NCCIR18th Sept 2017
2a0c:6700::/2934.4B × /64RIPE NCCIR10th Nov 2017
2a0c:6e00::/324.3B × /64RIPE NCCIR29th Jan 2024
2a0c:9800::/2934.4B × /64RIPE NCCIR26th Sept 2017
2a0c:99c0::/2934.4B × /64RIPE NCCIR4th May 2018
2a0c:a5c0::/2934.4B × /64RIPE NCCIR9th May 2018
2a0c:a700::/2934.4B × /64RIPE NCCIR17th Nov 2017
2a0c:a900::/2934.4B × /64RIPE NCCIR19th Aug 2025
2a0c:aa00::/2934.4B × /64RIPE NCCIR23rd Oct 2017
2a0c:adc0::/2934.4B × /64RIPE NCCIR11th May 2018
2a0c:b100::/2934.4B × /64RIPE NCCIR20th Nov 2017
2a0c:b900::/2934.4B × /64RIPE NCCIR20th Nov 2017
2a0c:d080::/324.3B × /64RIPE NCCIR19th Jan 2018
2a0c:e0c0::/2934.4B × /64RIPE NCCIR28th Aug 2025
2a0c:e4c0::/324.3B × /64RIPE NCCIR20th Jul 2018
2a0c:e6c0::/2934.4B × /64RIPE NCCIR28th Aug 2025
2a0c:fd80::/2934.4B × /64RIPE NCCIR29th Aug 2025
2a0d:1540::/2934.4B × /64RIPE NCCIR8th Aug 2018
2a0d:2380::/2934.4B × /64RIPE NCCIR21st Sept 2020
2a0d:2440::/3017.2B × /64RIPE NCCIR3rd Sept 2025
2a0d:2880::/2934.4B × /64RIPE NCCIR31st Jan 2018
2a0d:2c0::/2934.4B × /64RIPE NCCIR29th Aug 2025
2a0d:3ec0::/2934.4B × /64RIPE NCCIR4th Sept 2025
2a0d:4680::/2934.4B × /64RIPE NCCIR5th Feb 2018
2a0d:6600::/2934.4B × /64RIPE NCCIR31st Oct 2017
2a0d:7180::/2934.4B × /64RIPE NCCIR13th Feb 2018
2a0d:7780::/2934.4B × /64RIPE NCCIR14th Oct 2025
2a0d:84c0::/2934.4B × /64RIPE NCCIR21st Sept 2018
2a0d:9500::/2934.4B × /64RIPE NCCIR8th Dec 2017
2a0d:9680::/2934.4B × /64RIPE NCCIR20th Feb 2018
2a0d:9900::/2934.4B × /64RIPE NCCIR11th Sept 2025
2a0d:a700::/2934.4B × /64RIPE NCCIR11th Dec 2017
2a0d:ba80::/2934.4B × /64RIPE NCCIR28th Feb 2018
2a0d:c640::/2934.4B × /64RIPE NCCIR15th Oct 2018
2a0d:d580::/324.3B × /64RIPE NCCIR6th Mar 2018
2a0d:eb40::/2934.4B × /64RIPE NCCIR29th Jan 2024
2a0e:1240::/2934.4B × /64RIPE NCCIR27th Jun 2019
2a0e:1440::/2934.4B × /64RIPE NCCIR5th Dec 2025
2a0e:1f00::/2934.4B × /64RIPE NCCIR23rd Apr 2019