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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

30,479 blocks match, ordered by prefix.

Allocated but unannounced blocks, 19451 to 19500 of 30479
PrefixAddressesRegistryCountryAllocated
204.79.212.0/24256ARINUS19th Dec 1994
204.79.213.0/24256ARINFR19th Dec 1994
204.79.214.0/23512ARINFR19th Dec 1994
204.79.218.0/24256ARINJP19th Dec 1994
204.79.219.0/24256ARINNO19th Dec 1994
204.79.220.0/221kARINUS19th Dec 1994
204.79.224.0/23512ARINCA19th Dec 1994
204.79.228.0/24256ARINFR19th Dec 1994
204.79.229.0/24256ARINCH19th Dec 1994
204.79.231.0/24256ARINGB19th Dec 1994
204.79.232.0/23512ARINNO19th Dec 1994
204.79.234.0/24256ARINNO19th Dec 1994
204.79.235.0/24256ARINDE19th Dec 1994
204.79.236.0/24256ARINDE19th Dec 1994
204.79.237.0/24256ARINUS19th Dec 1994
204.79.238.0/23512ARINUS19th Dec 1994
204.79.240.0/24256ARINIT19th Dec 1994
204.79.241.0/24256ARINDE19th Dec 1994
204.79.242.0/24256ARINDE19th Dec 1994
204.79.243.0/24256ARINUS19th Dec 1994
204.79.244.0/23512ARINCA19th Dec 1994
204.79.246.0/23512ARINNL21st Apr 1995
204.79.248.0/221kARINNL21st Apr 1995
204.79.253.0/24256ARINNL19th Dec 1994
204.79.254.0/23512ARINNL19th Dec 1994
204.8.200.0/221kARINUS12th Aug 2004
204.8.208.0/212kARINUS18th Aug 2004
204.8.237.0/24256ARINCA27th Nov 2023
204.80.129.0/24256ARINUS12th Dec 1994
204.80.131.0/24256ARINUS15th Dec 1994
204.80.133.0/24256ARINUS15th Dec 1994
204.80.134.0/24256ARINUS10th Jan 1995
204.80.135.0/24256ARINUS10th Jan 1995
204.80.137.0/24256ARINUS10th Jan 1995
204.80.138.0/24256ARINUS10th Jan 1995
204.80.139.0/24256ARINUS10th Jan 1995
204.80.140.0/24256ARINUS10th Jan 1995
204.80.141.0/24256ARINUS10th Jan 1995
204.80.142.0/24256ARINUS11th Jan 1995
204.80.144.0/24256ARINUS11th Jan 1995
204.80.145.0/24256ARINUS11th Jan 1995
204.80.146.0/24256ARINUS11th Jan 1995
204.80.147.0/24256ARINUS11th Jan 1995
204.80.148.0/24256ARINUS11th Jan 1995
204.80.151.0/24256ARINUS11th Jan 1995
204.80.152.0/24256ARINUS11th Jan 1995
204.80.153.0/24256ARINUS11th Jan 1995
204.80.154.0/24256ARINUS14th Jan 1995
204.80.155.0/24256ARINUS15th Jan 1995
204.80.156.0/24256ARINUS15th Jan 1995