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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with unannounced space registered through RIPE NCC, largest first.

Unannounced blocks registered through RIPE NCC

24,875 blocks match, ordered by prefix.

Allocated but unannounced blocks, 16851 to 16900 of 24875
PrefixAddressesRegistryCountryAllocated
2a0b:4980::/2934.4B × /64RIPE NCCTR10th Jan 2017
2a0b:49c0::/2934.4B × /64RIPE NCCAT22nd Jun 2017
2a0b:4a00::/2934.4B × /64RIPE NCCIR9th Sept 2016
2a0b:4a80::/2934.4B × /64RIPE NCCES10th Jan 2017
2a0b:4ac0::/2934.4B × /64RIPE NCCFR22nd Jun 2017
2a0b:4b00::/2934.4B × /64RIPE NCCSE17th Oct 2016
2a0b:4b40::/324.3B × /64RIPE NCCES22nd Jun 2017
2a0b:4bc0::/2934.4B × /64RIPE NCCRU28th Jan 2022
2a0b:4c0::/2934.4B × /64RIPE NCCTR24th May 2017
2a0b:4cc0::/2934.4B × /64RIPE NCCDE22nd Jun 2017
2a0b:4dc0::/2934.4B × /64RIPE NCCLV22nd Jun 2017
2a0b:4e80::/2934.4B × /64RIPE NCCRU4th Aug 2025
2a0b:4ec0::/2934.4B × /64RIPE NCCRU27th Jul 2026
2a0b:4f40::/2934.4B × /64RIPE NCCDE23rd Jun 2017
2a0b:4f80::/2934.4B × /64RIPE NCCUZ16th Jan 2020
2a0b:5000::/2934.4B × /64RIPE NCCRO10th Aug 2016
2a0b:5080::/2934.4B × /64RIPE NCCES11th Jan 2017
2a0b:5140::/2934.4B × /64RIPE NCCGB26th Jun 2017
2a0b:5180::/2934.4B × /64RIPE NCCTR26th Jan 2026
2a0b:5200::/2934.4B × /64RIPE NCCCH9th Sept 2016
2a0b:5280::/2934.4B × /64RIPE NCCTR12th Jan 2017
2a0b:5300::/2934.4B × /64RIPE NCCNL18th Oct 2016
2a0b:5380::/2934.4B × /64RIPE NCCTR16th Jan 2020
2a0b:540::/2934.4B × /64RIPE NCCPL24th May 2017
2a0b:5440::/2934.4B × /64RIPE NCCAE20th Apr 2026
2a0b:54c0::/2934.4B × /64RIPE NCCGB4th Apr 2018
2a0b:5500::/2934.4B × /64RIPE NCCAT18th Oct 2016
2a0b:55c0::/2934.4B × /64RIPE NCCCH27th Jun 2017
2a0b:5640::/2934.4B × /64RIPE NCCCH27th Jun 2017
2a0b:5680::/2934.4B × /64RIPE NCCRU13th Jan 2017
2a0b:5700::/2934.4B × /64RIPE NCCAT18th Oct 2016
2a0b:57c0::/2934.4B × /64RIPE NCCNL27th Jun 2017
2a0b:580::/324.3B × /64RIPE NCCRU20th Dec 2016
2a0b:5880::/2934.4B × /64RIPE NCCGB13th Jan 2017
2a0b:5940::/2934.4B × /64RIPE NCCDE28th Jun 2017
2a0b:5980::/2934.4B × /64RIPE NCCGR13th Jan 2017
2a0b:59c0::/2934.4B × /64RIPE NCCGB28th Jun 2017
2a0b:5a00::/2934.4B × /64RIPE NCCIR12th Sept 2016
2a0b:5b00::/2934.4B × /64RIPE NCCIL27th Jan 2026
2a0b:5b40::/2934.4B × /64RIPE NCCDE28th Jun 2017
2a0b:5b80::/2934.4B × /64RIPE NCCGB13th Jan 2017
2a0b:5bc0::/2934.4B × /64RIPE NCCIE28th Jun 2017
2a0b:5c00::/2934.4B × /64RIPE NCCRU10th Jun 2020
2a0b:5c0::/2934.4B × /64RIPE NCCGB26th May 2017
2a0b:5c40::/2934.4B × /64RIPE NCCSE29th Jun 2017
2a0b:5cc0::/2934.4B × /64RIPE NCCHR28th Jul 2026
2a0b:5d80::/2934.4B × /64RIPE NCCIQ13th Jan 2017
2a0b:5e80::/2934.4B × /64RIPE NCCLB16th Jan 2017
2a0b:5f80::/2934.4B × /64RIPE NCCCW16th Jan 2017
2a0b:5fc0::/2934.4B × /64RIPE NCCRU30th Jun 2017