This data call returns information supplied by IANA and RIRs for allocations and direct assignments of prefixes and AS numbers of time.
https://stat.ripe.net/data/allocation-history/data.<format>?<parameters> 
e.g. https://stat.ripe.net/data/allocation-history/data.json?resource=140.78/16&starttime=2011-12-12T12:00
Parameters
|
Key
|
Value
|
Info
|
Required
|
|
resource
|
prefix, IP range or ASN
|
|
YES
|
|
starttime
|
ISO8601 or Unix timestamp
|
Defines the starttime for the query
|
YES
|
|
endtime
|
ISO8601 or Unix timestamp
|
Defines the endtime for the query
|
NO - if not set it falls back to "now"
|
Output
Data
|
Key
|
Info
|
|
results
|
Contains information on allocations and direct assignments grouped by RIR or IANA. Each block has the following structure:
| resource |
defines the exact resource this entry is about |
| status |
defines the status according to the RIRstats |
| timelines |
defines the timelines when this entry was valid for (including starttime and endtime) |
|
|
query_starttime
|
Defines the starttime the query covers
|
|
query_endtime
|
Defines the endtime the query covers
|
|
resource
|
Defines the resource used for the query
|
Example
"data": {
"query_endtime": "2012-04-13T08:00:00",
"query_starttime": "2011-12-12T12:00:00",
"resource": "140.78.0.0/16",
"results": {
"IANA": [
{
"resource": "140.0.0.0/8",
"status": "Administered by ARIN, LEGACY",
"timelines": [
{
"endtime": "2012-04-13T00:00:00",
"starttime": "2011-12-12T12:00:00"
}
]
}
],
"RIPENCC": [
{
"resource": "140.78.0.0-140.78.255.255",
"status": "ASSIGNED",
"timelines": [
{
"endtime": "2012-04-13T00:00:00",
"starttime": "2011-12-12T12:00:00"
}
]
}
]
}
}