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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,277 blocks match, ordered by prefix.

Allocated but unannounced blocks, 23601 to 23650 of 26277
PrefixAddressesRegistryCountryAllocated
2620:111:6000::/441M × /64ARINUS18th Oct 2012
2620:111:7000::/441M × /64ARINUS23rd Oct 2012
2620:111:9000::/441M × /64ARINUS30th Oct 2012
2620:111::/4016.8M × /64ARINUS4th Oct 2012
2620:111:b000::/441M × /64ARINUS1st Nov 2012
2620:111:c000::/441M × /64ARINUS6th Nov 2012
2620:111:f000::/4016.8M × /64ARINUS9th Nov 2012
2620:112:1000::/418.4M × /64ARINUS13th Nov 2012
2620:112:2000::/441M × /64ARINUS13th Nov 2012
2620:112:4000::/441M × /64ARINUS26th Nov 2012
2620:112:6000::/441M × /64ARINUS3rd Dec 2012
2620:112:a000::/441M × /64ARINUS4th Dec 2012
2620:112:b000::/4016.8M × /64ARINUS10th Dec 2012
2620:113:3000::/441M × /64ARINUS26th Dec 2012
2620:113:4000::/441M × /64ARINUS26th Dec 2012
2620:113:7000::/441M × /64ARINUS3rd Jan 2013
2620:113:9000::/441M × /64ARINUS8th Jan 2013
2620:113::/441M × /64ARINUS20th Dec 2012
2620:113:a000::/441M × /64ARINUS9th Jan 2013
2620:113:c000::/4016.8M × /64ARINUS10th Jan 2013
2620:113:e000::/441M × /64ARINUS14th Jan 2013
2620:114:1000::/441M × /64ARINUS24th Jan 2013
2620:114:2000::/4016.8M × /64ARINUS4th Feb 2013
2620:114:5000::/4016.8M × /64ARINUS6th Feb 2013
2620:114:8000::/4016.8M × /64ARINUS14th Feb 2013
2620:114:9000::/441M × /64ARINUS14th Feb 2013
2620:114::/441M × /64ARINUS18th Jan 2013
2620:114:a000::/441M × /64ARINUS20th Feb 2013
2620:114:b000::/4016.8M × /64ARINUS20th Feb 2013
2620:114:c000::/441M × /64ARINUS20th Feb 2013
2620:114:e000::/4016.8M × /64ARINUS6th Mar 2013
2620:114:f000::/441M × /64ARINUS8th Mar 2013
2620:115:1000::/441M × /64ARINUS12th Mar 2013
2620:115:3000::/441M × /64ARINUS15th Mar 2013
2620:115:4000::/4016.8M × /64ARINUS20th Mar 2013
2620:115:5000::/441M × /64ARINUS27th Mar 2013
2620:115:b000::/441M × /64ARINUS29th Apr 2013
2620:115:d000::/4016.8M × /64ARINUS29th Apr 2013
2620:115:e000::/441M × /64ARINUS2nd May 2013
2620:115:f000::/441M × /64ARINUS22nd May 2013
2620:116:1000::/4016.8M × /64ARINUS6th Jun 2013
2620:116:2000::/441M × /64ARINUS21st Jun 2013
2620:116:4000::/4016.8M × /64ARINUS25th Jun 2013
2620:116:6000::/441M × /64ARINUS3rd Jul 2013
2620:116:7000::/441M × /64ARINUS19th Jul 2013
2620:116:a000::/4016.8M × /64ARINUS20th Aug 2013
2620:116:b000::/4016.8M × /64ARINUS22nd Aug 2013
2620:116:c000::/441M × /64ARINUS26th Aug 2013
2620:117:1000::/4016.8M × /64ARINUS18th Sept 2013
2620:117:3000::/4016.8M × /64ARINUS11th Oct 2013