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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

3,819 blocks match, ordered by prefix.

Allocated but unannounced blocks, 501 to 550 of 3819
PrefixAddressesRegistryCountryAllocated
192.197.233.0/24256ARINCA2nd Dec 1992
192.197.234.0/24256ARINCA2nd Dec 1992
192.197.235.0/24256ARINCA2nd Dec 1992
192.197.236.0/24256ARINCA2nd Dec 1992
192.197.237.0/24256ARINCA2nd Dec 1992
192.197.238.0/24256ARINCA2nd Dec 1992
192.197.239.0/24256ARINCA9th Feb 1993
192.197.240.0/24256ARINCA9th Feb 1993
192.197.241.0/24256ARINCA9th Feb 1993
192.197.242.0/24256ARINCA9th Feb 1993
192.197.244.0/24256ARINCA3rd May 1993
192.197.246.0/24256ARINCA19th Jul 1992
192.197.248.0/24256ARINCA30th Nov 1993
192.197.249.0/24256ARINCA21st Apr 1993
192.197.252.0/24256ARINCA17th Mar 1993
192.197.254.0/24256ARINCA17th Mar 1993
192.197.52.0/23512ARINCA26th Oct 1992
192.197.55.0/24256ARINCA27th Oct 1992
192.197.56.0/24256ARINCA28th Oct 1992
192.197.57.0/24256ARINCA28th Oct 1992
192.197.63.0/24256ARINCA26th Oct 1992
192.197.65.0/24256ARINCA26th Oct 1992
192.197.66.0/24256ARINCA26th Oct 1992
192.197.67.0/24256ARINCA26th Oct 1992
192.197.68.0/24256ARINCA9th Mar 1993
192.197.70.0/24256ARINCA9th Mar 1993
192.197.73.0/24256ARINCA10th Mar 1993
192.197.74.0/24256ARINCA10th Mar 1993
192.197.75.0/24256ARINCA10th Mar 1993
192.197.78.0/23512ARINCA12th Aug 1993
192.197.80.0/23512ARINCA12th Aug 1993
192.197.84.0/24256ARINCA12th Aug 1993
192.197.85.0/24256ARINCA17th Mar 1993
192.197.86.0/24256ARINCA26th Oct 1992
192.197.91.0/24256ARINCA21st Jul 2015
192.197.94.0/24256ARINCA4th Dec 1992
192.199.0.0/24256ARINCA24th Jul 2015
192.203.106.0/24256ARINCA5th Aug 1992
192.203.107.0/24256ARINCA24th Aug 1992
192.203.197.0/24256ARINCA22nd Sept 1992
192.203.203.0/24256ARINCA23rd Sept 1992
192.206.2.0/24256ARINCA1st Jul 2026
192.206.217.0/24256ARINCA18th Sept 1992
192.206.218.0/24256ARINCA18th Sept 1992
192.206.93.0/24256ARINCA24th Aug 1992
192.206.94.0/24256ARINCA24th Aug 1992
192.207.60.0/23512ARINCA23rd Aug 2024
192.210.1.0/24256ARINCA26th Aug 1992
192.210.2.0/23512ARINCA26th Aug 1992
192.210.64.0/1816.4kARINCA28th Sept 1992