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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with the most unannounced blocks, largest first.

Unannounced blocks

84,783 blocks match, ordered by prefix.

Allocated but unannounced blocks, 1801 to 1850 of 84783
PrefixAddressesRegistryCountryAllocated
103.178.38.0/24256APNICID16th Dec 2021
103.178.4.0/23512APNICSG14th Dec 2021
103.178.53.0/24256APNICNZ20th Dec 2021
103.179.12.0/24256APNICIN4th Jan 2022
103.179.136.0/23512APNICID13th Jan 2022
103.179.158.0/23512APNICJP17th Jan 2022
103.179.178.0/23512APNICID17th Jan 2022
103.179.186.0/23512APNICVN17th Jan 2022
103.179.202.0/23512APNICGB18th Jan 2022
103.179.234.0/23512APNICIN18th Jan 2022
103.179.4.0/23512APNICIN3rd Jan 2022
103.179.42.0/23512APNICIN6th Jan 2022
103.179.74.0/23512APNICID10th Jan 2022
103.179.76.0/23512APNICCN11th Jan 2022
103.179.83.0/24256APNICSG11th Jan 2022
103.179.85.0/24256APNICID11th Jan 2022
103.179.88.0/24256APNICID11th Jan 2022
103.179.91.0/24256APNICUS11th Jan 2022
103.179.92.0/23512APNICID11th Jan 2022
103.179.98.0/23512APNICIN11th Jan 2022
103.18.104.0/221kAPNICIN14th Mar 2013
103.18.153.0/24256APNICID18th Mar 2013
103.18.156.0/221kAPNICIN18th Mar 2013
103.18.16.0/221kAPNICID8th Mar 2013
103.18.176.0/221kAPNICVN19th Mar 2013
103.18.186.0/23512APNICCN11th Oct 2022
103.18.190.0/23512APNICID22nd Mar 2013
103.18.192.0/221kAPNICCN20th Mar 2013
103.18.196.0/221kAPNICAU20th Mar 2013
103.18.208.0/221kAPNICCN21st Mar 2013
103.18.212.0/221kAPNICCN21st Mar 2013
103.18.216.0/221kAPNICIN22nd Mar 2013
103.18.224.0/221kAPNICCN22nd Mar 2013
103.18.240.0/24256APNICID22nd Mar 2013
103.18.241.0/24256APNICAU25th Mar 2013
103.18.36.0/221kAPNICAU11th Mar 2013
103.18.52.0/23512APNICAU12th Mar 2013
103.180.146.0/23512APNICVN26th Jan 2022
103.180.148.0/23512APNICVN26th Jan 2022
103.180.172.0/23512APNICIN26th Jan 2022
103.180.188.0/24256APNICUS27th Jan 2022
103.180.190.0/23512APNICAU27th Jan 2022
103.180.2.0/23512APNICIN20th Jan 2022
103.180.208.0/23512APNICAU28th Jan 2022
103.180.218.0/23512APNICIN28th Jan 2022
103.180.226.0/23512APNICCN30th Jan 2022
103.180.249.0/24256APNICIN1st Feb 2022
103.180.66.0/24256APNICIN24th Jan 2022
103.180.92.0/23512APNICIN24th Jan 2022
103.181.12.0/23512APNICHK2nd Feb 2022