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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

25,296 blocks match, ordered by prefix.

Allocated but unannounced blocks, 18151 to 18200 of 25296
PrefixAddressesRegistryCountryAllocated
2a0d:3440::/2934.4B × /64RIPE NCCIQ20th Aug 2026
2a0d:3500::/2934.4B × /64RIPE NCCPL30th Nov 2017
2a0d:3540::/2934.4B × /64RIPE NCCFR23rd Aug 2018
2a0d:35c0::/2934.4B × /64RIPE NCCGB23rd Aug 2018
2a0d:3600::/2934.4B × /64RIPE NCCNL30th Oct 2017
2a0d:3680::/2934.4B × /64RIPE NCCLB8th May 2023
2a0d:36c0::/2934.4B × /64RIPE NCCSG1st May 2026
2a0d:3740::/2934.4B × /64RIPE NCCRU24th Aug 2018
2a0d:3780::/2934.4B × /64RIPE NCCFR21st Aug 2026
2a0d:37c0::/2934.4B × /64RIPE NCCNL4th Sept 2025
2a0d:3800::/2934.4B × /64RIPE NCCDE29th Sept 2017
2a0d:3940::/2934.4B × /64RIPE NCCUS24th Aug 2018
2a0d:3980::/2934.4B × /64RIPE NCCHU2nd Feb 2018
2a0d:39c0::/2934.4B × /64RIPE NCCDE24th Aug 2018
2a0d:3a00::/2934.4B × /64RIPE NCCNL30th Oct 2017
2a0d:3a80::/2934.4B × /64RIPE NCCPL2nd Feb 2018
2a0d:3ac0::/2934.4B × /64RIPE NCCES24th Aug 2018
2a0d:3bc0::/2934.4B × /64RIPE NCCNL24th Aug 2018
2a0d:3cc0::/2934.4B × /64RIPE NCCBG27th Aug 2018
2a0d:3d00::/2934.4B × /64RIPE NCCIT1st Dec 2017
2a0d:3d40::/2934.4B × /64RIPE NCCCH28th Aug 2018
2a0d:3e00::/2934.4B × /64RIPE NCCUA30th Oct 2017
2a0d:3e40::/2934.4B × /64RIPE NCCEE28th Aug 2018
2a0d:3ec0::/2934.4B × /64RIPE NCCIR4th Sept 2025
2a0d:3f00::/324.3B × /64RIPE NCCGB1st Dec 2017
2a0d:3f80::/2934.4B × /64RIPE NCCNL5th Feb 2018
2a0d:4000::/2934.4B × /64RIPE NCCGB18th Sept 2017
2a0d:400::/2934.4B × /64RIPE NCCDE6th Oct 2017
2a0d:4080::/2934.4B × /64RIPE NCCFR25th Jun 2019
2a0d:4100::/324.3B × /64RIPE NCCSY1st Dec 2017
2a0d:4180::/2934.4B × /64RIPE NCCLT19th Mar 2020
2a0d:4200::/2934.4B × /64RIPE NCCGB5th Feb 2024
2a0d:4280::/2934.4B × /64RIPE NCCGB5th Feb 2018
2a0d:4300::/2934.4B × /64RIPE NCCDK1st Dec 2017
2a0d:4380::/2934.4B × /64RIPE NCCIT5th Feb 2018
2a0d:4400::/2934.4B × /64RIPE NCCGB28th Jul 2020
2a0d:440::/2934.4B × /64RIPE NCCIN1st Aug 2018
2a0d:4580::/2934.4B × /64RIPE NCCTR5th Feb 2018
2a0d:4640::/2934.4B × /64RIPE NCCIT29th Aug 2018
2a0d:4680::/2934.4B × /64RIPE NCCIR5th Feb 2018
2a0d:46c0::/324.3B × /64RIPE NCCUA11th Jun 2021
2a0d:4740::/2934.4B × /64RIPE NCCAT30th Aug 2018
2a0d:4780::/2934.4B × /64RIPE NCCDK5th Feb 2018
2a0d:47c0::/2934.4B × /64RIPE NCCPL30th Aug 2018
2a0d:4800::/2934.4B × /64RIPE NCCGB29th Sept 2017
2a0d:480::/2934.4B × /64RIPE NCCDE25th Jan 2018
2a0d:4880::/2934.4B × /64RIPE NCCGB6th Feb 2018
2a0d:48c0::/2934.4B × /64RIPE NCCRU30th Aug 2018
2a0d:49c0::/2934.4B × /64RIPE NCCTR30th Aug 2018
2a0d:4b80::/2934.4B × /64RIPE NCCDK6th Feb 2018