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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 27701 to 27750 of 30434
PrefixAddressesRegistryCountryAllocated
2620:124:e000::/4016.8M × /64ARINUS5th Jan 2016
2620:124:f000::/441M × /64ARINUS7th Jan 2016
2620:125:1000::/441M × /64ARINUS11th Jan 2016
2620:125:2000::/441M × /64ARINUS11th Jan 2016
2620:125:3000::/4016.8M × /64ARINUS14th Jan 2016
2620:125:5000::/441M × /64ARINCA27th Jan 2016
2620:125:6000::/441M × /64ARINUS3rd Feb 2016
2620:125:7000::/4016.8M × /64ARINUS3rd Feb 2016
2620:125:8000::/441M × /64ARINUS4th Feb 2016
2620:125::/4016.8M × /64ARINUS8th Jan 2016
2620:125:a000::/441M × /64ARINUS29th Feb 2016
2620:125:d000::/4016.8M × /64ARINUS9th Mar 2016
2620:125:e000::/4016.8M × /64ARINUS17th Mar 2016
2620:126:1000::/441M × /64ARINUS18th Mar 2016
2620:126:3000::/4016.8M × /64ARINUS21st Mar 2016
2620:126:6000::/4016.8M × /64ARINUS28th Mar 2016
2620:126:7000::/441M × /64ARINCA29th Mar 2016
2620:126:8000::/441M × /64ARINUS30th Mar 2016
2620:126:9000::/4016.8M × /64ARINUS1st Apr 2016
2620:126::/441M × /64ARINUS18th Mar 2016
2620:126:a000::/441M × /64ARINUS5th Apr 2016
2620:126:c000::/441M × /64ARINCA7th Apr 2016
2620:126:d000::/441M × /64ARINUS13th Apr 2016
2620:126:f000::/441M × /64ARINUS19th Apr 2016
2620:127:1000::/4016.8M × /64ARINUS6th May 2016
2620:127:2000::/441M × /64ARINUS6th May 2016
2620:127:4000::/4016.8M × /64ARINUS13th May 2016
2620:127:6000::/4016.8M × /64ARINUS16th May 2016
2620:127:8000::/4016.8M × /64ARINUS18th May 2016
2620:127:9000::/4016.8M × /64ARINUS27th May 2016
2620:127::/441M × /64ARINUS20th Apr 2016
2620:127:a000::/4016.8M × /64ARINUS31st May 2016
2620:127:b000::/441M × /64ARINUS31st May 2016
2620:127:c000::/4016.8M × /64ARINUS1st Jun 2016
2620:127:d000::/4016.8M × /64ARINUS14th Jun 2016
2620:127:e000::/4016.8M × /64ARINUS16th Jun 2016
2620:128:3000::/4016.8M × /64ARINUS7th Jul 2016
2620:128:4000::/441M × /64ARINUS7th Jul 2016
2620:128:8000::/441M × /64ARINUS18th Jul 2016
2620:128:b000::/4016.8M × /64ARINUS21st Jul 2016
2620:128:c000::/4016.8M × /64ARINUS21st Jul 2016
2620:128:d000::/4016.8M × /64ARINUS21st Jul 2016
2620:129:3000::/4016.8M × /64ARINUS12th Aug 2016
2620:129:5000::/441M × /64ARINUS12th Aug 2016
2620:129:7000::/441M × /64ARINCA29th Aug 2016
2620:129:8000::/441M × /64ARINUS30th Aug 2016
2620:129:a000::/4016.8M × /64ARINUS1st Sept 2016
2620:129:b000::/441M × /64ARINUS1st Sept 2016
2620:129:d000::/4016.8M × /64ARINUS7th Sept 2016
2620:12:4000::/4865.5k × /64ARINUS18th Dec 2012