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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

26,936 blocks match, ordered by prefix.

Allocated but unannounced blocks, 12451 to 12500 of 26936
PrefixAddressesRegistryCountryAllocated
198.71.0.0/221kARINUS1st Oct 2026
198.71.16.0/212kARINUS11th Feb 1993
198.71.24.0/221kARINUS11th Feb 1993
198.71.28.0/221kARINUS11th Sept 2012
198.71.40.0/221kARINUS12th Feb 1993
198.71.64.0/212kARINUS12th Feb 1993
198.71.72.0/221kARINUS12th Feb 1993
198.71.8.0/212kARINUS24th Feb 1993
198.72.16.0/212kARINUS5th Mar 1993
198.72.32.0/212kARINUS8th Mar 1993
198.72.4.0/23512ARINUS19th Feb 1993
198.72.40.0/23512ARINUS8th Mar 1993
198.73.105.0/24256ARINUS12th Apr 1993
198.73.106.0/23512ARINUS12th Apr 1993
198.73.108.0/24256ARINUS12th Apr 1993
198.73.158.0/24256ARINUS27th Apr 1993
198.73.159.0/24256ARINUS27th Apr 1993
198.73.160.0/24256ARINUS27th Apr 1993
198.73.172.0/24256ARINUS30th Apr 1993
198.73.173.0/24256ARINUS30th Apr 1993
198.73.174.0/24256ARINUS30th Apr 1993
198.73.175.0/24256ARINUS30th Apr 1993
198.73.184.0/24256ARINUS10th May 1993
198.73.209.0/24256ARINUS21st Nov 2013
198.73.228.0/24256ARINUS18th May 1993
198.73.229.0/24256ARINUS18th May 1993
198.73.230.0/24256ARINUS18th May 1993
198.73.231.0/24256ARINUS18th May 1993
198.73.232.0/24256ARINUS18th May 1993
198.73.233.0/24256ARINUS18th May 1993
198.73.234.0/24256ARINUS18th May 1993
198.73.235.0/24256ARINUS18th May 1993
198.73.236.0/24256ARINUS18th May 1993
198.73.237.0/24256ARINUS18th May 1993
198.73.238.0/24256ARINUS18th May 1993
198.73.239.0/24256ARINUS18th May 1993
198.73.246.0/24256ARINUS14th Jun 1993
198.73.253.0/24256ARINUS24th Jun 1993
198.73.32.0/24256ARINUS19th Nov 2013
198.73.38.0/24256ARINUS27th Apr 1993
198.73.5.0/24256ARINUS27th Dec 2016
198.73.80.0/23512ARINUS5th Nov 2026
198.73.95.0/24256ARINUS20th Nov 2013
198.74.132.0/221kARINUS3rd Sept 1993
198.74.136.0/212kARINUS3rd Sept 1993
198.74.144.0/204.1kARINUS3rd Sept 1993
198.74.16.0/212kARINUS22nd Feb 1993
198.74.192.0/198.2kARINUS3rd Sept 1993
198.74.40.0/23512ARINUS25th Feb 1993
198.74.44.0/221kARINUS6th Mar 2013