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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 34751 to 34800 of 85310
PrefixAddressesRegistryCountryAllocated
2001:126b::/324.3B × /64LACNICMX12th Nov 2025
2001:126e::/324.3B × /64LACNICMX28th May 2026
2001:12a4::/324.3B × /64LACNICBR27th Jun 2008
2001:12c0::/324.3B × /64LACNICBR31st Oct 2008
2001:12c8::/324.3B × /64LACNICBR19th Dec 2007
2001:12f8::/4865.5k × /64LACNICBR19th Dec 2007
2001:1300::/324.3B × /64LACNICPE11th Jul 2005
2001:1318::/324.3B × /64LACNICAR24th Nov 2003
2001:1338::/324.3B × /64LACNICVE23rd Nov 2004
2001:1350::/324.3B × /64LACNICAR20th May 2005
2001:1368::/324.3B × /64LACNICPA6th Jul 2005
2001:1378::/324.3B × /64LACNICBO6th Jul 2005
2001:1380::/324.3B × /64LACNICPE12th Jul 2005
2001:13a8::/324.3B × /64LACNICMX22nd Jul 2005
2001:13c7:6001::/4865.5k × /64LACNICAR9th Nov 2010
2001:13c7:6002::/4865.5k × /64LACNICSX3rd Jun 2008
2001:13c7:6003::/4865.5k × /64LACNICHT29th Apr 2009
2001:13c7:6004::/47131k × /64LACNICCW13th Nov 2008
2001:13c7:6006::/4865.5k × /64LACNICEC5th Dec 2008
2001:13c7:7003::/4865.5k × /64LACNICUY14th Jul 2008
2001:1408::/324.3B × /64RIPE NCCAT12th May 2003
2001:14e8::/324.3B × /64RIPE NCCIR15th Jul 2003
2001:1500::/324.3B × /64RIPE NCCIR16th Jul 2003
2001:1510::/324.3B × /64RIPE NCCUS23rd Jul 2003
2001:1558::/324.3B × /64RIPE NCCCH25th Aug 2003
2001:15e0::/324.3B × /64RIPE NCCGB7th Oct 2003
2001:1668::/324.3B × /64RIPE NCCNL3rd Dec 2003
2001:1678::/324.3B × /64RIPE NCCIT10th Dec 2003
2001:16a8::/324.3B × /64RIPE NCCIT23rd Dec 2003
2001:16d0::/324.3B × /64RIPE NCCIT9th Jan 2004
2001:1818::/324.3B × /64ARINUS20th Jun 2003
2001:1840::/324.3B × /64ARINUS27th Jun 2003
2001:1888::/324.3B × /64ARINUS15th Oct 2003
2001:18a0::/324.3B × /64ARINUS27th Oct 2003
2001:18f0::/324.3B × /64ARINCA5th Jan 2004
2001:18f8::/324.3B × /64ARINCA5th Jan 2004
2001:1910::/324.3B × /64ARINUS8th Jan 2004
2001:1920::/324.3B × /64ARINCA4th Feb 2004
2001:1950::/324.3B × /64ARINUS13th Apr 2004
2001:1958::/324.3B × /64ARINUS20th Apr 2004
2001:19a0::/324.3B × /64ARINUS13th Jul 2004
2001:19a8::/324.3B × /64ARINCA22nd Jul 2004
2001:19c8::/324.3B × /64ARINUS13th Sept 2004
2001:19e0::/324.3B × /64ARINUS11th Oct 2004
2001:1a58::/324.3B × /64RIPE NCCES8th Apr 2009
2001:1a78::/2934.4B × /64RIPE NCCDE24th Feb 2004
2001:1b68::/2934.4B × /64RIPE NCCTR7th May 2004
2001:1be8::/324.3B × /64RIPE NCCNL1st Jun 2004
2001:208:2000::/35537M × /64APNICSG6th Mar 2003
2001:208:4000::/341.1B × /64APNICSG6th Mar 2003