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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,283 blocks match, ordered by prefix.

Allocated but unannounced blocks, 21601 to 21650 of 26283
PrefixAddressesRegistryCountryAllocated
2602:feb7::/36268M × /64ARINUS28th Sept 2017
2602:feb8::/36268M × /64ARINUS22nd Sept 2017
2602:feb9::/36268M × /64ARINUS6th Sept 2017
2602:feba::/324.3B × /64ARINUS5th Sept 2017
2602:febf::/36268M × /64ARINUS17th Aug 2017
2602:fec4::/36268M × /64ARINUS4th Aug 2017
2602:fec5::/36268M × /64ARINUS4th Aug 2017
2602:fec8::/36268M × /64ARINUS27th Jul 2017
2602:fec9::/36268M × /64ARINUS27th Jul 2017
2602:fecf::/36268M × /64ARINUS18th Jul 2017
2602:fed1::/36268M × /64ARINUS11th Jul 2017
2602:fed4::/36268M × /64ARINUS23rd Jun 2017
2602:fed6::/36268M × /64ARINUS23rd Jun 2017
2602:fed7::/36268M × /64ARINUS20th Jun 2017
2602:fed8::/4016.8M × /64ARINUS26th Jan 2026
2602:fedb::/36268M × /64ARINUS8th Jun 2017
2602:fede::/36268M × /64ARINUS6th Jun 2017
2602:fef5::/36268M × /64ARINUS27th Apr 2017
2602:fef8::/36268M × /64ARINUS18th Apr 2017
2602:fefe::/36268M × /64ARINUS3rd Apr 2017
2602:ff02::/36268M × /64ARINUS22nd Mar 2017
2602:ff05::/36268M × /64ARINUS3rd Mar 2017
2602:ff08::/36268M × /64ARINUS14th Feb 2017
2602:ff0f::/36268M × /64ARINUS27th Jan 2017
2602:ff10::/36268M × /64ARINUS18th Jan 2017
2602:ff14::/36268M × /64ARINUS27th Dec 2016
2602:ff15::/36268M × /64ARINUS21st Dec 2016
2602:ff19::/36268M × /64ARINUS8th Dec 2016
2602:ff1b::/36268M × /64ARINUS5th Dec 2016
2602:ff1e::/36268M × /64ARINUS15th Nov 2016
2602:ff24::/36268M × /64ARINUS12th Oct 2016
2602:ff25::/36268M × /64ARINUS5th Oct 2016
2602:ff26::/36268M × /64ARINUS6th Oct 2016
2602:ff27::/36268M × /64ARINUS16th Sept 2016
2602:ff28::/36268M × /64ARINUS15th Sept 2016
2602:ff2b::/36268M × /64ARINUS19th Aug 2016
2602:ff32::/36268M × /64ARINUS21st Jul 2016
2602:ff33::/36268M × /64ARINUS18th Jul 2016
2602:ff35::/36268M × /64ARINUS12th Jul 2016
2602:ff38::/36268M × /64ARINUS8th Jul 2016
2602:ff3c::/36268M × /64ARINUS16th Jun 2016
2602:ff3f::/36268M × /64ARINUS2nd Jun 2016
2602:ff40::/36268M × /64ARINUS18th May 2016
2602:ff46::/4016.8M × /64ARINUS27th Jan 2026
2602:ff49::/36268M × /64ARINUS8th Apr 2016
2602:ff4a::/36268M × /64ARINUS8th Apr 2016
2602:ff4c::/36268M × /64ARINUS28th Mar 2016
2602:ff4e::/4016.8M × /64ARINUS28th Jan 2026
2602:ff4f::/36268M × /64ARINUS22nd Mar 2016
2602:ff53::/36268M × /64ARINUS4th Mar 2016