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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,941 blocks match, ordered by prefix.

Allocated but unannounced blocks, 10351 to 10400 of 26941
PrefixAddressesRegistryCountryAllocated
198.180.201.0/24256ARINUS9th Aug 1993
198.180.202.0/24256ARINUS10th Oct 2022
198.180.203.0/24256ARINUS4th Feb 2013
198.180.204.0/24256ARINUS10th Aug 1993
198.180.205.0/24256ARINUS10th Aug 1993
198.180.208.0/23512ARINUS10th Aug 1993
198.180.210.0/24256ARINUS10th Aug 1993
198.180.211.0/24256ARINUS11th Aug 1993
198.180.212.0/24256ARINUS25th Mar 2025
198.180.213.0/24256ARINUS11th Aug 1993
198.180.214.0/24256ARINUS11th Aug 1993
198.180.215.0/24256ARINUS11th Aug 1993
198.180.216.0/24256ARINUS11th Aug 1993
198.180.217.0/24256ARINUS11th Aug 1993
198.180.220.0/221kARINUS11th Aug 1993
198.180.224.0/24256ARINUS12th Aug 1993
198.180.226.0/24256ARINUS12th Aug 1993
198.180.227.0/24256ARINUS13th Aug 1993
198.180.228.0/24256ARINUS13th Aug 1993
198.180.230.0/24256ARINUS18th Nov 2025
198.180.231.0/24256ARINUS13th Aug 1993
198.180.232.0/24256ARINUS13th Aug 1993
198.180.233.0/24256ARINUS16th Aug 1993
198.180.234.0/23512ARINUS16th Aug 1993
198.180.236.0/24256ARINUS16th Aug 1993
198.180.237.0/24256ARINUS16th Aug 1993
198.180.238.0/24256ARINUS16th Aug 1993
198.180.239.0/24256ARINUS16th Aug 1993
198.180.242.0/24256ARINUS16th Aug 1993
198.180.243.0/24256ARINUS16th Aug 1993
198.180.244.0/221kARINUS17th Aug 1993
198.180.248.0/23512ARINUS17th Aug 1993
198.180.252.0/24256ARINUS17th Aug 1993
198.180.64.0/1816.4kARINUS30th Jul 1993
198.180.8.0/212kARINUS25th May 1993
198.181.0.0/221kARINUS3rd Jun 1993
198.181.132.0/24256ARINUS5th Oct 2026
198.181.133.0/24256ARINUS19th Nov 1993
198.181.134.0/23512ARINUS19th Nov 1993
198.181.136.0/23512ARINUS19th Nov 1993
198.181.138.0/24256ARINUS19th Nov 1993
198.181.139.0/24256ARINUS23rd Nov 1993
198.181.140.0/24256ARINUS24th Nov 1993
198.181.142.0/24256ARINUS24th Nov 1993
198.181.143.0/24256ARINUS24th Nov 1993
198.181.144.0/221kARINUS24th Nov 1993
198.181.148.0/24256ARINUS24th Nov 1993
198.181.149.0/24256ARINUS24th Nov 1993
198.181.150.0/24256ARINUS24th Nov 1993
198.181.151.0/24256ARINUS24th Nov 1993