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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks registered through ARIN

30,434 blocks match, ordered by prefix.

Allocated but unannounced blocks, 27401 to 27450 of 30434
PrefixAddressesRegistryCountryAllocated
2620:104:f000::/441M × /64ARINUS14th Jun 2011
2620:105:2000::/4016.8M × /64ARINUS21st Jun 2011
2620:105:3000::/441M × /64ARINUS23rd Jun 2011
2620:105:4000::/441M × /64ARINUS23rd Jun 2011
2620:105:5000::/441M × /64ARINUS24th Jun 2011
2620:105:7000::/441M × /64ARINUS28th Jun 2011
2620:105:8000::/441M × /64ARINUS28th Jun 2011
2620:105:9000::/4016.8M × /64ARINUS28th Jun 2011
2620:105::/441M × /64ARINCA15th Jun 2011
2620:105:a000::/441M × /64ARINUS5th Jul 2011
2620:105:e000::/4016.8M × /64ARINUS14th Jul 2011
2620:106:1000::/4016.8M × /64ARINUS20th Jul 2011
2620:106:4000::/441M × /64ARINUS1st Aug 2011
2620:106:5000::/4016.8M × /64ARINUS1st Aug 2011
2620:106:9000::/441M × /64ARINUS22nd Aug 2011
2620:106::/441M × /64ARINUS20th Jul 2011
2620:106:b000::/441M × /64ARINUS24th Aug 2011
2620:106:d000::/4016.8M × /64ARINUS26th Aug 2011
2620:107:2000::/441M × /64ARINUS13th Sept 2011
2620:107:5000::/4016.8M × /64ARINUS19th Sept 2011
2620:107:6000::/441M × /64ARINUS19th Sept 2011
2620:107:7000::/441M × /64ARINUS22nd Sept 2011
2620:107:8000::/4016.8M × /64ARINUS26th Sept 2011
2620:107:c000::/441M × /64ARINUS26th Sept 2011
2620:107:d000::/441M × /64ARINUS3rd Oct 2011
2620:107:e000::/4016.8M × /64ARINUS3rd Oct 2011
2620:108:2000::/441M × /64ARINUS14th Oct 2011
2620:108:3000::/441M × /64ARINUS17th Oct 2011
2620:108:5000::/441M × /64ARINUS18th Oct 2011
2620:108:6000::/36268M × /64ARINUS1st Nov 2011
2620:108::/4016.8M × /64ARINUS4th Oct 2011
2620:108:b000::/441M × /64ARINUS22nd Nov 2011
2620:108:c000::/4016.8M × /64ARINUS22nd Nov 2011
2620:108:e000::/441M × /64ARINUS28th Nov 2011
2620:108:f000::/441M × /64ARINUS29th Nov 2011
2620:109:1000::/4016.8M × /64ARINUS1st Dec 2011
2620:109:2000::/441M × /64ARINUS9th Dec 2011
2620:109:3000::/441M × /64ARINUS12th Dec 2011
2620:109:4000::/4016.8M × /64ARINUS19th Dec 2011
2620:109:5000::/441M × /64ARINUS20th Dec 2011
2620:109:7000::/4016.8M × /64ARINUS30th Dec 2011
2620:109:9000::/4016.8M × /64ARINUS6th Jan 2012
2620:109::/4016.8M × /64ARINUS1st Dec 2011
2620:109:d000::/441M × /64ARINUS13th Jan 2012
2620:109:e000::/4016.8M × /64ARINUS13th Jan 2012
2620:109:f000::/441M × /64ARINUS18th Jan 2012
2620:10:2000::/4865.5k × /64ARINUS27th Dec 2016
2620:10:4000::/4865.5k × /64ARINUS3rd Dec 2012
2620:10:6000::/4865.5k × /64ARINUS29th Dec 2016
2620:10:a000::/4865.5k × /64ARINUS3rd Jan 2017