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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,310 blocks match, ordered by prefix.

Allocated but unannounced blocks, 34851 to 34900 of 85310
PrefixAddressesRegistryCountryAllocated
2001:3440::/2934.4B × /64RIPE NCCDE11th Sept 2024
2001:3480::/2934.4B × /64RIPE NCCLT13th Aug 2024
2001:3540::/2934.4B × /64RIPE NCCUS12th Sept 2024
2001:360:4000::/341.1B × /64APNICAU15th Aug 2002
2001:360:8000::/332.1B × /64APNICAU15th Aug 2002
2001:368:2000::/35537M × /64APNICJP12th Jul 2002
2001:368:4000::/341.1B × /64APNICJP12th Jul 2002
2001:368:8000::/332.1B × /64APNICJP12th Jul 2002
2001:368::/35537M × /64APNICJP12th Dec 2001
2001:3740::/2934.4B × /64RIPE NCCDE13th Sept 2024
2001:3880::/2934.4B × /64RIPE NCCDE14th Aug 2024
2001:38c0::/324.3B × /64RIPE NCCUS17th Sept 2024
2001:390:2000::/35537M × /64APNICKR2nd Aug 2002
2001:390:4000::/341.1B × /64APNICKR2nd Aug 2002
2001:390:8000::/332.1B × /64APNICKR2nd Aug 2002
2001:390::/35537M × /64APNICKR7th Feb 2002
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
2001:3d0:2000::/35537M × /64APNICJP14th Feb 2003
2001:3d0:4000::/341.1B × /64APNICJP14th Feb 2003
2001:3d0:8000::/332.1B × /64APNICJP14th Feb 2003
2001:3d0::/35537M × /64APNICJP21st May 2002
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
2001:3e8::/324.3B × /64APNICJP6th Aug 2010
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
2001:408::/324.3B × /64ARINUS2nd Feb 2010
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
2001:4250::/324.3B × /64AFRINICAO22nd May 2006