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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,124 blocks match, ordered by prefix.

Allocated but unannounced blocks, 71001 to 71050 of 85124
PrefixAddressesRegistryCountryAllocated
2a05:c380::/2934.4B × /64RIPE NCCES15th May 2025
2a05:c400::/2934.4B × /64RIPE NCCRU28th May 2018
2a05:c40::/324.3B × /64RIPE NCCLB13th Jun 2018
2a05:c480::/2934.4B × /64RIPE NCCGB11th Feb 2015
2a05:c4c0::/2934.4B × /64RIPE NCCNL11th Feb 2015
2a05:c540::/2934.4B × /64RIPE NCCGB12th Feb 2015
2a05:c580::/2934.4B × /64RIPE NCCLT26th Jan 2021
2a05:c640::/2934.4B × /64RIPE NCCTR13th Feb 2015
2a05:c680::/2934.4B × /64RIPE NCCFR15th May 2025
2a05:c740::/2934.4B × /64RIPE NCCSE13th Feb 2015
2a05:c780::/2934.4B × /64RIPE NCCGB19th Jun 2018
2a05:c7c0::/2934.4B × /64RIPE NCCES13th Feb 2015
2a05:c800::/2934.4B × /64RIPE NCCPT13th Feb 2015
2a05:c840::/2934.4B × /64RIPE NCCGR13th Feb 2015
2a05:c880::/2934.4B × /64RIPE NCCKG16th Feb 2015
2a05:c8c0::/2934.4B × /64RIPE NCCRU16th Feb 2015
2a05:c980::/2934.4B × /64RIPE NCCGB16th Feb 2015
2a05:c9c0::/2934.4B × /64RIPE NCCTR16th Feb 2015
2a05:ca00::/2934.4B × /64RIPE NCCIT16th Feb 2015
2a05:ca80::/2934.4B × /64RIPE NCCDE16th Feb 2015
2a05:cac0::/2934.4B × /64RIPE NCCIR30th Mar 2022
2a05:cb00::/2934.4B × /64RIPE NCCGB17th Feb 2015
2a05:cb40::/2934.4B × /64RIPE NCCRO17th Feb 2015
2a05:cb80::/2934.4B × /64RIPE NCCTR21st Jul 2026
2a05:cc0::/2934.4B × /64RIPE NCCNL7th Dec 2021
2a05:cc40::/2934.4B × /64RIPE NCCRU18th Feb 2015
2a05:cc80::/2934.4B × /64RIPE NCCRU18th Feb 2015
2a05:ccc0::/2934.4B × /64RIPE NCCCA1st Jul 2026
2a05:cd40::/2934.4B × /64RIPE NCCUS19th Jun 2018
2a05:cd80::/2934.4B × /64RIPE NCCNL18th Feb 2015
2a05:cdc0::/2934.4B × /64RIPE NCCFR18th Feb 2015
2a05:ce00::/2934.4B × /64RIPE NCCES18th Feb 2015
2a05:cf80::/2934.4B × /64RIPE NCCRU20th Feb 2015
2a05:d00::/2934.4B × /64RIPE NCCCH29th Dec 2015
2a05:d400::/2934.4B × /64RIPE NCCRU20th Feb 2015
2a05:d40::/2934.4B × /64RIPE NCCFR14th Aug 2014
2a05:d440::/2934.4B × /64RIPE NCCRU20th Feb 2015
2a05:d500::/2934.4B × /64RIPE NCCDE20th Feb 2015
2a05:d5c0::/2934.4B × /64RIPE NCCGE23rd Feb 2015
2a05:d600::/2934.4B × /64RIPE NCCLB23rd Feb 2015
2a05:d640::/2934.4B × /64RIPE NCCIQ23rd Feb 2015
2a05:d680::/2934.4B × /64RIPE NCCPL23rd Feb 2015
2a05:d6c0::/2934.4B × /64RIPE NCCPL23rd Feb 2015
2a05:d700::/2934.4B × /64RIPE NCCTR19th Jun 2018
2a05:d780::/2934.4B × /64RIPE NCCUA24th Feb 2015
2a05:d7c0::/2934.4B × /64RIPE NCCSA24th Feb 2015
2a05:d800::/2934.4B × /64RIPE NCCMK25th Feb 2015
2a05:d840::/2934.4B × /64RIPE NCCKZ10th Jun 2025
2a05:d884::/3017.2B × /64RIPE NCCDE25th Feb 2015
2a05:d900::/2934.4B × /64RIPE NCCNL25th Feb 2015