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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 27801 to 27850 of 30434
PrefixAddressesRegistryCountryAllocated
2620:12f:d000::/441M × /64ARINUS17th May 2017
2620:130:1000::/441M × /64ARINCA23rd May 2017
2620:130:2000::/4016.8M × /64ARINUS24th May 2017
2620:130:3000::/4016.8M × /64ARINUS30th May 2017
2620:130:4000::/4016.8M × /64ARINUS31st May 2017
2620:130:6000::/441M × /64ARINUS8th Jun 2017
2620:130:a000::/441M × /64ARINUS14th Jun 2017
2620:130:e000::/441M × /64ARINUS20th Jun 2017
2620:130:f000::/441M × /64ARINUS20th Jun 2017
2620:131:7000::/4016.8M × /64ARINUS13th Jul 2017
2620:131:8000::/441M × /64ARINUS19th Jul 2017
2620:131:9000::/4016.8M × /64ARINUS24th Jul 2017
2620:131:b000::/4016.8M × /64ARINUS25th Jul 2017
2620:131:d000::/4016.8M × /64ARINUS28th Jul 2017
2620:131:e000::/441M × /64ARINUS31st Jul 2017
2620:132:4000::/4016.8M × /64ARINUS18th Aug 2017
2620:132:6000::/441M × /64ARINUS22nd Aug 2017
2620:132:8000::/441M × /64ARINUS28th Aug 2017
2620:132:9000::/36268M × /64ARINUS30th Aug 2017
2620:132:a000::/441M × /64ARINUS6th Sept 2017
2620:132:c000::/4016.8M × /64ARINCA7th Sept 2017
2620:132:d000::/4016.8M × /64ARINUS8th Sept 2017
2620:132:e000::/441M × /64ARINUS8th Sept 2017
2620:133:1000::/441M × /64ARINUS14th Sept 2017
2620:133:3000::/4016.8M × /64ARINUS22nd Sept 2017
2620:133:4000::/4016.8M × /64ARINUS28th Sept 2017
2620:133:5000::/441M × /64ARINUS3rd Oct 2017
2620:133:6000::/441M × /64ARINUS3rd Oct 2017
2620:133:7000::/4016.8M × /64ARINUS6th Oct 2017
2620:133:9000::/441M × /64ARINUS6th Oct 2017
2620:133:a000::/4016.8M × /64ARINCA10th Oct 2017
2620:133:b000::/4016.8M × /64ARINCA19th Oct 2017
2620:133:c000::/441M × /64ARINUS20th Oct 2017
2620:134:3000::/441M × /64ARINCA7th Nov 2017
2620:134:4000::/441M × /64ARINUS7th Nov 2017
2620:134:5000::/4016.8M × /64ARINUS9th Nov 2017
2620:134:7000::/441M × /64ARINCA13th Nov 2017
2620:134:9000::/4016.8M × /64ARINUS22nd Nov 2017
2620:134::/441M × /64ARINUS26th Oct 2017
2620:134:d000::/441M × /64ARINCA11th Dec 2017
2620:134:e000::/4016.8M × /64ARINUS14th Dec 2017
2620:135:1000::/441M × /64ARINUS29th Dec 2017
2620:135:3000::/441M × /64ARINUS4th Jan 2018
2620:135:8000::/441M × /64ARINUS16th Jan 2018
2620:135:9000::/4016.8M × /64ARINUS23rd Jan 2018
2620:135:a000::/4016.8M × /64ARINUS25th Jan 2018
2620:135:b000::/4016.8M × /64ARINUS1st Feb 2018
2620:135:c000::/441M × /64ARINUS5th Feb 2018
2620:135:d000::/441M × /64ARINUS8th Feb 2018
2620:135:e000::/4016.8M × /64ARINUS12th Feb 2018