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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

25,312 blocks match, ordered by prefix.

Allocated but unannounced blocks, 8751 to 8800 of 25312
PrefixAddressesRegistryCountryAllocated
2001:2800::/218.8T × /64RIPE NCCSE10th May 2004
2001:3000::/324.3B × /64RIPE NCCDE25th Jul 2024
2001:3040::/2934.4B × /64RIPE NCCIR4th Sept 2024
2001:30c0::/2934.4B × /64RIPE NCCIR5th Sept 2024
2001:3100::/2934.4B × /64RIPE NCCDE2nd Aug 2024
2001:3140::/2934.4B × /64RIPE NCCCH5th Sept 2024
2001:3180::/2934.4B × /64RIPE NCCLT13th Aug 2024
2001:31c0::/2934.4B × /64RIPE NCCES6th Sept 2024
2001:3200::/2934.4B × /64RIPE NCCGB26th Jul 2024
2001:3240::/2934.4B × /64RIPE NCCGB6th Sept 2024
2001:32c0::/2934.4B × /64RIPE NCCJO9th Sept 2024
2001:3340::/2934.4B × /64RIPE NCCOM9th Sept 2024
2001:3380::/2934.4B × /64RIPE NCCLT13th Aug 2024
2001:33c0::/2934.4B × /64RIPE NCCAE10th Sept 2024
2001:3400::/2934.4B × /64RIPE NCCAZ25th Jul 2024
2001:3440::/2934.4B × /64RIPE NCCDE11th Sept 2024
2001:3480::/2934.4B × /64RIPE NCCLT13th Aug 2024
2001:3540::/2934.4B × /64RIPE NCCUS12th Sept 2024
2001:3740::/2934.4B × /64RIPE NCCDE13th Sept 2024
2001:3880::/2934.4B × /64RIPE NCCDE14th Aug 2024
2001:38c0::/324.3B × /64RIPE NCCUS17th Sept 2024
2001:3940::/2934.4B × /64RIPE NCCGE17th Sept 2024
2001:39c0::/2934.4B × /64RIPE NCCIR18th Sept 2024
2001:3a00::/2934.4B × /64RIPE NCCDE30th Jul 2024
2001:3b40::/2934.4B × /64RIPE NCCRU19th Sept 2024
2001:3c00::/2934.4B × /64RIPE NCCAZ26th Jul 2024
2001:3cc0::/324.3B × /64RIPE NCCLT20th Sept 2024
2001:3d00::/324.3B × /64RIPE NCCDE6th Aug 2024
2001:3d40::/2934.4B × /64RIPE NCCGE23rd Sept 2024
2001:3d80::/2934.4B × /64RIPE NCCBE25th Apr 2025
2001:3dc0::/2934.4B × /64RIPE NCCSA23rd Sept 2024
2001:3e00::/2934.4B × /64RIPE NCCRU30th Jul 2024
2001:3e80::/2934.4B × /64RIPE NCCIT19th Aug 2024
2001:3ec0::/2934.4B × /64RIPE NCCIR24th Sept 2024
2001:3f00::/324.3B × /64RIPE NCCNL6th Aug 2024
2001:3f40::/2934.4B × /64RIPE NCCIR24th Sept 2024
2001:3f80::/2934.4B × /64RIPE NCCIR9th Dec 2025
2001:4040::/2934.4B × /64RIPE NCCSE30th Jun 2004
2001:4058::/324.3B × /64RIPE NCCRU1st Jul 2004
2001:4068::/324.3B × /64RIPE NCCDE8th Jul 2004
2001:4080::/2934.4B × /64RIPE NCCFR20th Jul 2004
2001:40d8::/324.3B × /64RIPE NCCGB3rd Aug 2004
2001:4108::/324.3B × /64RIPE NCCES10th Sept 2004
2001:4120::/324.3B × /64RIPE NCCNL16th Sept 2004
2001:4128::/2934.4B × /64RIPE NCCNL21st Sept 2004
2001:4140::/324.3B × /64RIPE NCCGB23rd Sept 2004
2001:41a0::/324.3B × /64RIPE NCCIT1st Nov 2004
2001:41e8::/324.3B × /64RIPE NCCGB2nd Dec 2004
2001:4b40::/324.3B × /64RIPE NCCAT20th Jan 2005
2001:4b50::/2934.4B × /64RIPE NCCBE31st Jan 2005