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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

27,034 blocks match, ordered by prefix.

Allocated but unannounced blocks, 14751 to 14800 of 27034
PrefixAddressesRegistryCountryAllocated
199.5.239.0/24256ARINUS27th Dec 1993
199.5.24.0/23512ARINUS13th Sept 1993
199.5.240.0/24256ARINUS27th Dec 1993
199.5.241.0/24256ARINUS27th Dec 1993
199.5.243.0/24256ARINUS27th Dec 1993
199.5.244.0/23512ARINUS27th Dec 1993
199.5.246.0/24256ARINUS27th Dec 1993
199.5.249.0/24256ARINUS27th Dec 1993
199.5.250.0/23512ARINUS27th Dec 1993
199.5.254.0/24256ARINUS27th Dec 1993
199.51.0.0/1665.5kARINUS8th Nov 1993
199.58.12.0/24256ARINUS10th Feb 1994
199.58.140.0/221kARINUS9th Nov 2010
199.58.156.0/221kARINUS15th Nov 2010
199.58.16.0/212kARINUS18th Nov 1993
199.58.24.0/221kARINUS18th Nov 1993
199.58.240.0/212kARINUS22nd Nov 2010
199.58.254.0/24256ARINUS19th Jul 2016
199.58.8.0/221kARINUS10th Feb 1994
199.59.16.0/212kARINUS18th Nov 1993
199.59.160.0/212kARINUS29th Nov 2010
199.59.28.0/23512ARINUS18th Nov 1993
199.59.30.0/24256ARINUS18th Nov 1993
199.59.48.0/221kARINUS14th Dec 2011
199.59.8.0/212kARINUS1st Dec 1993
199.60.123.0/24256ARINUS23rd Nov 1994
199.66.108.0/221kARINUS30th Sept 2025
199.66.112.0/221kARINUS3rd Jan 2012
199.66.16.0/212kARINUS26th Nov 1993
199.66.228.0/221kARINUS27th Dec 2010
199.66.236.0/221kARINUS27th Dec 2010
199.66.24.0/221kARINUS26th Nov 1993
199.66.248.0/221kARINUS29th Dec 2010
199.66.28.0/23512ARINUS26th Nov 1993
199.66.32.0/204.1kARINUS1st Dec 1993
199.66.48.0/221kARINUS1st Dec 1993
199.66.52.0/221kARINUS6th Oct 1994
199.66.56.0/212kARINUS6th Oct 1994
199.66.80.0/221kARINUS27th Dec 2011
199.67.240.0/212kARINUS20th Jan 1994
199.67.8.0/212kARINUS1st Dec 1993
199.68.0.0/221kARINUS19th May 1994
199.68.100.0/23512ARINUS1st Dec 1993
199.68.102.0/23512ARINUS23rd May 2012
199.68.168.0/212kARINUS4th Jan 2011
199.68.24.0/23512ARINUS1st Dec 1993
199.68.4.0/23512ARINUS19th May 1994
199.68.52.0/24256ARINUS6th Dec 1993
199.68.64.0/212kARINUS1st Dec 1993
199.68.8.0/221kARINUS1st Dec 1993