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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 34801 to 34850 of 85310
PrefixAddressesRegistryCountryAllocated
2001:208:8000::/332.1B × /64APNICSG6th Mar 2003
2001:208::/35537M × /64APNICSG27th Aug 1999
2001:2100::/241.1T × /64RIPE NCCSE10th May 2004
2001:2200::/232.2T × /64RIPE NCCSE10th May 2004
2001:220:2000::/35537M × /64APNICKR26th Nov 2003
2001:220:4000::/341.1B × /64APNICKR26th Nov 2003
2001:220:8000::/332.1B × /64APNICKR26th Nov 2003
2001:220::/35537M × /64APNICKR6th Oct 1999
2001:230:2000::/35537M × /64APNICKR2nd Aug 2002
2001:230:4000::/341.1B × /64APNICKR2nd Aug 2002
2001:230:8000::/332.1B × /64APNICKR2nd Aug 2002
2001:230::/35537M × /64APNICKR24th Nov 1999
2001:2400::/224.4T × /64RIPE NCCSE10th May 2004
2001:254::/324.3B × /64APNICCN25th Nov 2005
2001:2800::/218.8T × /64RIPE NCCSE10th May 2004
2001:280:2000::/35537M × /64APNICKR2nd Aug 2002
2001:280:4000::/341.1B × /64APNICKR2nd Aug 2002
2001:280:8000::/332.1B × /64APNICKR2nd Aug 2002
2001:280::/35537M × /64APNICKR27th Sept 2000
2001:2a0:2000::/35537M × /64APNICJP18th Nov 2002
2001:2a0:4000::/341.1B × /64APNICJP18th Nov 2002
2001:2a0:8000::/332.1B × /64APNICJP18th Nov 2002
2001:2a0::/35537M × /64APNICJP8th Dec 2000
2001:2b0:2000::/35537M × /64APNICKR12th Mar 2003
2001:2b0:4000::/341.1B × /64APNICKR12th Mar 2003
2001:2b0:8000::/332.1B × /64APNICKR12th Mar 2003
2001:2b0::/35537M × /64APNICKR2nd Jan 2001
2001:2b8:2000::/35537M × /64APNICKR2nd Aug 2002
2001:2b8:4000::/341.1B × /64APNICKR2nd Aug 2002
2001:2b8:8000::/332.1B × /64APNICKR2nd Aug 2002
2001:2b8::/35537M × /64APNICKR15th Jan 2001
2001:2b9::/324.3B × /64APNICKR27th Jul 2017
2001:2c8:2000::/35537M × /64APNICJP13th Aug 2004
2001:2c8:4000::/341.1B × /64APNICJP13th Aug 2004
2001:2c8:8000::/332.1B × /64APNICJP13th Aug 2004
2001:2c8::/35537M × /64APNICJP8th Feb 2001
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