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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 701 to 750 of 3775
PrefixAddressesRegistryCountryAllocated
192.75.156.0/24256ARINCA11th Jul 1991
192.75.157.0/24256ARINCA16th Jul 1991
192.75.159.0/24256ARINCA20th Jul 1993
192.75.16.0/24256ARINCA21st Sept 1990
192.75.160.0/24256ARINCA26th Mar 1990
192.75.161.0/24256ARINCA26th Mar 1990
192.75.162.0/24256ARINCA23rd May 1994
192.75.163.0/24256ARINCA26th Mar 1990
192.75.164.0/24256ARINCA26th Mar 1990
192.75.166.0/24256ARINCA31st Jul 1991
192.75.167.0/24256ARINCA31st Jul 1991
192.75.168.0/24256ARINCA31st Jul 1991
192.75.169.0/24256ARINCA31st Jul 1991
192.75.170.0/24256ARINCA26th Mar 1990
192.75.173.0/24256ARINCA26th Mar 1990
192.75.176.0/24256ARINCA26th Mar 1990
192.75.177.0/24256ARINCA26th Mar 1990
192.75.178.0/24256ARINCA26th Mar 1990
192.75.179.0/24256ARINCA26th Mar 1990
192.75.180.0/24256ARINCA26th Mar 1990
192.75.181.0/24256ARINCA26th Mar 1990
192.75.182.0/24256ARINCA26th Mar 1990
192.75.183.0/24256ARINCA26th Mar 1990
192.75.186.0/24256ARINCA28th Jan 1992
192.75.189.0/24256ARINCA23rd Jul 1992
192.75.190.0/24256ARINCA12th Dec 2014
192.75.2.0/24256ARINCA8th Aug 1990
192.75.20.0/24256ARINCA11th Oct 1990
192.75.208.0/24256ARINCA18th Dec 1991
192.75.21.0/24256ARINCA11th Oct 1990
192.75.210.0/24256ARINCA20th Apr 1993
192.75.212.0/24256ARINCA2nd Jun 1992
192.75.22.0/24256ARINCA11th Oct 1990
192.75.230.0/24256ARINCA18th Dec 1991
192.75.231.0/24256ARINCA18th Dec 1991
192.75.232.0/24256ARINCA30th Dec 1991
192.75.233.0/24256ARINCA30th Dec 1991
192.75.234.0/24256ARINCA30th Dec 1991
192.75.235.0/24256ARINCA30th Dec 1991
192.75.248.0/24256ARINCA6th Jan 1992
192.75.249.0/24256ARINCA6th Jan 1992
192.75.25.0/24256ARINCA12th Nov 1990
192.75.250.0/24256ARINCA6th Jan 1992
192.75.251.0/24256ARINCA6th Jan 1992
192.75.252.0/24256ARINCA6th Jan 1992
192.75.27.0/24256ARINCA30th Nov 1990
192.75.28.0/24256ARINCA30th Nov 1990
192.75.29.0/24256ARINCA30th Nov 1990
192.75.3.0/24256ARINCA8th Aug 1990
192.75.30.0/24256ARINCA30th Nov 1990