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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

30,456 blocks match, ordered by prefix.

Allocated but unannounced blocks, 8701 to 8750 of 30456
PrefixAddressesRegistryCountryAllocated
192.73.30.0/24256ARINUS12th Jul 1990
192.73.32.0/24256ARINUS12th Jul 1990
192.73.4.0/24256ARINUS3rd Jul 1990
192.73.46.0/24256ARINUS18th Jul 1990
192.73.47.0/24256ARINUS26th Mar 1990
192.73.49.0/24256ARINUS26th Mar 1990
192.73.5.0/24256ARINCA3rd Jul 1990
192.73.50.0/24256ARINUS12th Nov 1996
192.73.51.0/24256ARINUS31st Jul 1990
192.73.52.0/24256ARINUS31st Jul 1990
192.73.55.0/24256ARINUS26th Jul 1990
192.73.57.0/24256ARINUS30th Jul 1990
192.73.58.0/24256ARINUS30th Jul 1990
192.73.59.0/24256ARINUS30th Jul 1990
192.73.6.0/24256ARINUS3rd Jul 1990
192.73.60.0/24256ARINUS30th Jul 1990
192.73.61.0/24256ARINUS31st Jul 1990
192.73.63.0/24256ARINUS26th Mar 1990
192.73.64.0/24256ARINUS31st Jul 1990
192.73.65.0/24256ARINUS31st Jul 1990
192.73.68.0/24256ARINUS31st Jul 1990
192.73.69.0/24256ARINUS5th Dec 2014
192.73.70.0/24256ARINUS31st Jul 1990
192.73.71.0/24256ARINUS31st Jul 1990
192.73.72.0/24256ARINUS31st Jul 1990
192.73.73.0/24256ARINUS31st Jul 1990
192.73.74.0/24256ARINUS31st Jul 1990
192.73.75.0/24256ARINUS2nd Aug 1990
192.73.77.0/24256ARINUS3rd Aug 1990
192.73.78.0/24256ARINUS5th Aug 1990
192.73.79.0/24256ARINUS5th Aug 1990
192.73.8.0/24256ARINUS3rd Jul 1990
192.73.9.0/24256ARINUS3rd Jul 1990
192.74.138.0/24256ARINUS26th Mar 1990
192.74.213.0/24256ARINUS26th Mar 1990
192.74.218.0/23512ARINUS26th Mar 1990
192.75.1.0/24256ARINCA8th Aug 1990
192.75.100.0/24256ARINCA27th Apr 1993
192.75.102.0/23512ARINCA26th Mar 1990
192.75.104.0/24256ARINCA11th Jul 1991
192.75.107.0/24256ARINCA5th Feb 1992
192.75.108.0/24256ARINCA5th Feb 1992
192.75.109.0/24256ARINCA5th Feb 1992
192.75.110.0/24256ARINCA5th Feb 1992
192.75.111.0/24256ARINCA5th Feb 1992
192.75.112.0/24256ARINCA5th Feb 1992
192.75.113.0/24256ARINCA5th Feb 1992
192.75.115.0/24256ARINCA5th Feb 1992
192.75.119.0/24256ARINCA5th Feb 1992
192.75.124.0/24256ARINCA5th Feb 1992