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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks

85,248 blocks match, ordered by prefix.

Allocated but unannounced blocks, 63051 to 63100 of 85248
PrefixAddressesRegistryCountryAllocated
2620:4f:4000::/4865.5k × /64ARINUS9th Oct 2013
2620:4f:6000::/4865.5k × /64ARINUS18th Jul 2018
2620:4f::/4865.5k × /64ARINUS27th Jan 2011
2620:4f:a000::/4865.5k × /64ARINUS23rd Jul 2018
2620:4f:c000::/4865.5k × /64ARINUS14th Oct 2013
2620:50:4080::/4865.5k × /64ARINUS26th Aug 2026
2620:50:8000::/4865.5k × /64ARINCA11th Mar 2016
2620:50:8080::/4865.5k × /64ARINUS13th Jul 2012
2620:50::/441M × /64ARINUS25th Feb 2010
2620:50:c040::/4865.5k × /64ARINUS15th Apr 2016
2620:51:2000::/4865.5k × /64ARINUS30th Jul 2018
2620:51:4000::/4865.5k × /64ARINCA17th Oct 2013
2620:51:6000::/4865.5k × /64ARINUS31st Jul 2018
2620:51::/4865.5k × /64ARINUS31st Jan 2011
2620:51:a000::/4865.5k × /64ARINUS6th Aug 2018
2620:51:e000::/4865.5k × /64ARINUS6th Aug 2018
2620:52:4000::/4865.5k × /64ARINUS18th Oct 2013
2620:52:6000::/4865.5k × /64ARINUS9th Aug 2018
2620:52:8000::/441M × /64ARINUS9th Jun 2011
2620:53:4000::/441M × /64ARINUS22nd Oct 2013
2620:53:8000::/4865.5k × /64ARINUS10th Jun 2011
2620:53::/4865.5k × /64ARINUS31st Jan 2011
2620:53:c000::/4865.5k × /64ARINUS23rd Oct 2013
2620:54:4000::/4865.5k × /64ARINUS23rd Oct 2013
2620:54:6000::/4865.5k × /64ARINUS7th Jul 2026
2620:54::/4865.5k × /64ARINUS29th Apr 2010
2620:55:2000::/4865.5k × /64ARINCA30th Aug 2018
2620:55:4000::/441M × /64ARINUS25th Oct 2013
2620:55:8000::/4865.5k × /64ARINUS14th Jun 2011
2620:55::/4865.5k × /64ARINUS31st Jan 2011
2620:55:a000::/4865.5k × /64ARINUS30th Aug 2018
2620:55:c000::/4865.5k × /64ARINUS28th Oct 2013
2620:55:e000::/4865.5k × /64ARINUS4th Sept 2018
2620:56:2000::/4865.5k × /64ARINCA5th Sept 2018
2620:56:8000::/4865.5k × /64ARINUS14th Jun 2011
2620:56::/4865.5k × /64ARINUS27th Sept 2011
2620:56:c000::/441M × /64ARINUS28th Oct 2013
2620:57:8000::/4865.5k × /64ARINUS16th Jun 2011
2620:57:a000::/4865.5k × /64ARINUS18th Sept 2018
2620:58:8800::/4865.5k × /64ARINUS30th Nov 2012
2620:58::/4016.8M × /64ARINUS17th Mar 2010
2620:59:2000::/441M × /64ARINUS14th Jul 2026
2620:59:4000::/4865.5k × /64ARINUS6th Nov 2013
2620:59:6000::/4865.5k × /64ARINJM24th Sept 2018
2620:59:8000::/4865.5k × /64ARINUS17th Jun 2011
2620:59::/4865.5k × /64ARINUS4th Feb 2011
2620:59:e000::/4865.5k × /64ARINUS2nd Oct 2018
2620:5:4000::/441M × /64ARINUS20th May 2013
2620:5:8000::/4865.5k × /64ARINUS4th Apr 2011
2620:5::/4865.5k × /64ARINUS29th Nov 2010