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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

3,775 blocks match, ordered by prefix.

Allocated but unannounced blocks, 751 to 800 of 3775
PrefixAddressesRegistryCountryAllocated
192.75.31.0/24256ARINCA30th Nov 1990
192.75.32.0/24256ARINCA30th Nov 1990
192.75.33.0/24256ARINCA30th Nov 1990
192.75.34.0/24256ARINCA30th Nov 1990
192.75.35.0/24256ARINCA30th Nov 1990
192.75.36.0/24256ARINCA30th Nov 1990
192.75.37.0/24256ARINCA30th Nov 1990
192.75.39.0/24256ARINCA30th Nov 1990
192.75.40.0/24256ARINCA30th Nov 1990
192.75.41.0/24256ARINCA30th Nov 1990
192.75.42.0/24256ARINCA30th Nov 1990
192.75.44.0/24256ARINCA30th Nov 1990
192.75.46.0/24256ARINCA30th Nov 1990
192.75.47.0/24256ARINCA30th Nov 1990
192.75.49.0/24256ARINCA30th Nov 1990
192.75.5.0/24256ARINCA8th Aug 1990
192.75.50.0/24256ARINCA30th Nov 1990
192.75.51.0/24256ARINCA30th Nov 1990
192.75.52.0/24256ARINCA30th Nov 1990
192.75.53.0/24256ARINCA30th Nov 1990
192.75.54.0/24256ARINCA30th Nov 1990
192.75.59.0/24256ARINCA30th Nov 1990
192.75.6.0/24256ARINCA26th Mar 1990
192.75.60.0/24256ARINCA30th Nov 1990
192.75.61.0/24256ARINCA30th Nov 1990
192.75.64.0/24256ARINCA11th Jul 1991
192.75.65.0/24256ARINCA15th Jan 1991
192.75.67.0/24256ARINCA15th Jan 1991
192.75.69.0/24256ARINCA16th Jan 1991
192.75.7.0/24256ARINCA26th Mar 1990
192.75.70.0/24256ARINCA15th Jan 1991
192.75.72.0/24256ARINCA11th Mar 1991
192.75.73.0/24256ARINCA5th Feb 1991
192.75.74.0/24256ARINCA5th Feb 1991
192.75.75.0/24256ARINCA5th Feb 1991
192.75.76.0/24256ARINCA5th Feb 1991
192.75.77.0/24256ARINCA5th Feb 1991
192.75.78.0/24256ARINCA5th Feb 1991
192.75.79.0/24256ARINCA5th Feb 1991
192.75.8.0/24256ARINCA26th Mar 1990
192.75.81.0/24256ARINCA18th Mar 1991
192.75.82.0/23512ARINCA18th Mar 1991
192.75.84.0/221kARINCA18th Mar 1991
192.75.9.0/24256ARINCA26th Mar 1990
192.75.91.0/24256ARINCA18th Mar 1991
192.75.92.0/24256ARINCA18th Mar 1991
192.75.93.0/24256ARINCA18th Mar 1991
192.75.98.0/24256ARINCA9th Apr 1991
192.77.47.0/24256ARINCA6th Nov 1990
192.77.48.0/24256ARINCA6th Nov 1990