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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

27,007 blocks match, ordered by prefix.

Allocated but unannounced blocks, 5501 to 5550 of 27007
PrefixAddressesRegistryCountryAllocated
192.184.4.0/24256ARINUS8th Oct 1990
192.184.8.0/212kARINUS7th Mar 2013
192.187.10.0/24256ARINUS19th Jun 1992
192.187.11.0/24256ARINUS19th Jun 1992
192.187.12.0/24256ARINUS19th Jun 1992
192.187.128.0/24256ARINUS30th Dec 1992
192.187.129.0/24256ARINUS8th Jan 1993
192.187.13.0/24256ARINUS19th Jun 1992
192.187.130.0/24256ARINUS17th Jul 1992
192.187.132.0/24256ARINUS8th Jan 1993
192.187.133.0/24256ARINUS8th Jan 1993
192.187.134.0/24256ARINUS17th Jul 1992
192.187.135.0/24256ARINUS17th Jul 1992
192.187.136.0/24256ARINUS17th Jul 1992
192.187.14.0/24256ARINUS19th Jun 1992
192.187.140.0/24256ARINUS17th Jul 1992
192.187.141.0/24256ARINUS28th Jan 1993
192.187.142.0/24256ARINUS7th Jan 1993
192.187.143.0/24256ARINUS28th Jan 1993
192.187.148.0/24256ARINUS7th Jan 1993
192.187.149.0/24256ARINUS3rd Feb 1993
192.187.150.0/24256ARINUS21st Dec 1992
192.187.151.0/24256ARINUS9th Feb 1993
192.187.152.0/24256ARINUS9th Feb 1993
192.187.153.0/24256ARINUS3rd Feb 1993
192.187.154.0/24256ARINUS9th Feb 1993
192.187.155.0/24256ARINUS3rd Feb 1993
192.187.156.0/24256ARINUS3rd Feb 1993
192.187.157.0/24256ARINUS17th Jul 1992
192.187.158.0/24256ARINUS17th Jul 1992
192.187.159.0/24256ARINUS17th Jul 1992
192.187.160.0/24256ARINUS17th Jul 1992
192.187.161.0/24256ARINUS17th Jul 1992
192.187.162.0/24256ARINUS17th Jul 1992
192.187.163.0/24256ARINUS17th Jul 1992
192.187.164.0/24256ARINUS3rd Feb 1993
192.187.165.0/24256ARINUS30th Jan 1993
192.187.166.0/24256ARINUS17th Jul 1992
192.187.167.0/24256ARINUS17th Jul 1992
192.187.168.0/212kARINUS20th Jan 1993
192.187.176.0/204.1kARINUS20th Jan 1993
192.187.32.0/24256ARINUS29th Jun 1992
192.187.33.0/24256ARINUS29th Jun 1992
192.187.34.0/24256ARINUS29th Jun 1992
192.187.35.0/24256ARINUS29th Jun 1992
192.187.36.0/24256ARINUS29th Jun 1992
192.187.37.0/24256ARINUS29th Jun 1992
192.187.38.0/24256ARINUS29th Jun 1992
192.187.39.0/24256ARINUS29th Jun 1992
192.187.40.0/24256ARINUS29th Jun 1992