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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.

Unannounced blocks in United States

27,034 blocks match, ordered by prefix.

Allocated but unannounced blocks, 15651 to 15700 of 27034
PrefixAddressesRegistryCountryAllocated
204.124.148.0/221kARINUS8th Nov 1994
204.124.16.0/23512ARINUS5th Oct 1994
204.124.164.0/23512ARINUS14th Nov 1994
204.124.176.0/221kARINUS21st Nov 1994
204.124.18.0/24256ARINUS5th Oct 1994
204.124.188.0/23512ARINUS28th Nov 1994
204.124.190.0/24256ARINUS28th Nov 1994
204.124.196.0/221kARINUS12th Dec 1994
204.124.200.0/23512ARINUS15th Dec 1994
204.124.202.0/24256ARINUS15th Dec 1994
204.124.203.0/24256ARINUS1st Jul 2020
204.124.204.0/221kARINUS27th Dec 1994
204.124.212.0/221kARINUS27th Dec 1994
204.124.228.0/221kARINUS29th Dec 1994
204.124.24.0/221kARINUS6th Oct 1994
204.124.240.0/221kARINUS10th Jan 1995
204.124.248.0/23512ARINUS14th Jan 1995
204.124.250.0/24256ARINUS14th Jan 1995
204.124.32.0/198.2kARINUS17th Aug 1994
204.124.4.0/221kARINUS30th Sept 1994
204.124.68.0/221kARINUS6th Oct 1994
204.124.72.0/221kARINUS6th Oct 1994
204.124.76.0/221kARINUS10th Oct 1994
204.124.8.0/23512ARINUS4th Oct 1994
204.124.86.0/24256ARINUS11th Oct 1994
204.124.88.0/221kARINUS10th Mar 2015
204.124.94.0/24256ARINUS14th Oct 1994
204.125.0.0/1665.5kARINUS19th Aug 1994
204.126.0.0/23512ARINUS19th Sept 1994
204.126.100.0/23512ARINUS23rd Nov 1994
204.126.102.0/23512ARINUS30th Nov 1994
204.126.108.0/23512ARINUS7th Dec 1994
204.126.114.0/23512ARINUS18th Sept 2025
204.126.130.0/23512ARINUS29th Dec 1994
204.126.14.0/23512ARINUS13th Oct 1994
204.126.148.0/23512ARINUS16th Jan 1995
204.126.150.0/23512ARINUS24th Jan 1995
204.126.154.0/23512ARINUS26th Jan 1995
204.126.158.0/23512ARINUS27th Jan 1995
204.126.164.0/23512ARINUS30th Jan 1995
204.126.176.0/23512ARINUS8th Feb 1995
204.126.18.0/23512ARINUS24th Mar 2011
204.126.182.0/23512ARINUS21st Feb 1995
204.126.184.0/23512ARINUS24th Feb 1995
204.126.192.0/23512ARINUS28th Feb 1995
204.126.196.0/23512ARINUS1st Mar 1995
204.126.198.0/23512ARINUS3rd Mar 1995
204.126.202.0/23512ARINUS8th Mar 1995
204.126.214.0/23512ARINUS8th Mar 1995
204.126.216.0/23512ARINUS9th Mar 1995