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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,356 blocks match, ordered by prefix.

Allocated but unannounced blocks, 37551 to 37600 of 85356
PrefixAddressesRegistryCountryAllocated
2001:df0:23d::/4865.5k × /64APNICAU19th Jul 2011
2001:df0:23e::/4865.5k × /64APNICIN21st Jul 2011
2001:df0:23f::/4865.5k × /64APNICID25th Jul 2011
2001:df0:241::/4865.5k × /64APNICAU9th Aug 2011
2001:df0:242::/4865.5k × /64APNICID22nd Aug 2011
2001:df0:243::/4865.5k × /64APNICIN23rd Aug 2011
2001:df0:246::/4865.5k × /64APNICAU2nd Sept 2011
2001:df0:2480::/4865.5k × /64APNICBD1st Apr 2019
2001:df0:249::/4865.5k × /64APNICAU13th Sept 2011
2001:df0:24a::/4865.5k × /64APNICAU15th Sept 2011
2001:df0:24b::/4865.5k × /64APNICNZ16th Sept 2011
2001:df0:24c::/4865.5k × /64APNICMY22nd Sept 2011
2001:df0:24e::/4865.5k × /64APNICAU23rd Sept 2011
2001:df0:2500::/4865.5k × /64APNICAU27th Jan 2017
2001:df0:252::/4865.5k × /64APNICAU6th Oct 2011
2001:df0:253::/4865.5k × /64APNICIN7th Oct 2011
2001:df0:254::/4865.5k × /64APNICJP13th Oct 2011
2001:df0:256::/4865.5k × /64APNICAU26th Oct 2011
2001:df0:2580::/4865.5k × /64APNICID2nd Apr 2019
2001:df0:258::/4865.5k × /64APNICJP1st Nov 2011
2001:df0:259::/4865.5k × /64APNICSG1st Nov 2011
2001:df0:25a::/4865.5k × /64APNICAU1st Nov 2011
2001:df0:25b::/4865.5k × /64APNICHK1st Nov 2011
2001:df0:25c0::/4865.5k × /64APNICCN6th Dec 2021
2001:df0:25c::/4865.5k × /64APNICIN11th Nov 2011
2001:df0:25d::/4865.5k × /64APNICIN11th Nov 2011
2001:df0:2600::/4865.5k × /64APNICID29th Dec 2015
2001:df0:261::/4865.5k × /64APNICNZ23rd Nov 2011
2001:df0:263::/4865.5k × /64APNICID2nd Dec 2011
2001:df0:2640::/4865.5k × /64APNICBD6th Dec 2021
2001:df0:265::/4865.5k × /64APNICTH12th Dec 2011
2001:df0:267::/4865.5k × /64APNICAU14th Dec 2011
2001:df0:268::/4865.5k × /64APNICID16th Dec 2011
2001:df0:269::/4865.5k × /64APNICID19th Dec 2011
2001:df0:26e::/4865.5k × /64APNICID28th Dec 2011
2001:df0:26f::/4865.5k × /64APNICID29th Dec 2011
2001:df0:2700::/4865.5k × /64APNICID27th Jan 2017
2001:df0:270::/4865.5k × /64APNICIN29th Dec 2011
2001:df0:273::/4865.5k × /64APNICID9th Jan 2012
2001:df0:2740::/4865.5k × /64APNICVN6th Dec 2021
2001:df0:274::/46262k × /64APNICNP10th Jan 2012
2001:df0:278::/4865.5k × /64APNICID10th Jan 2012
2001:df0:279::/4865.5k × /64APNICPK11th Jan 2012
2001:df0:27a::/4865.5k × /64APNICAU13th Jan 2012
2001:df0:27c::/4865.5k × /64APNICSG17th Jan 2012
2001:df0:27d::/4865.5k × /64APNICAU25th Jan 2012
2001:df0:27e::/47131k × /64APNICUS27th Jan 2012
2001:df0:2800::/4865.5k × /64APNICAU15th Nov 2013
2001:df0:280::/441M × /64APNICHK30th Dec 2011
2001:df0:2840::/4865.5k × /64APNICIN6th Dec 2021