# Allocation History

This data call returns information supplied by IANA and RIRs for allocations and direct assignments of prefixes and AS numbers of time.

GET /data/allocation-history/data.json?resource=140.78/16&starttime=2020-12-12T12:00

# Parameters

Key Value Info Required
resource prefix, IP range or ASN YES
starttime ISO8601 or Unix timestamp Defines the starttime for the query NO
endtime ISO8601 or Unix timestamp Defines the endtime for the query. If not set it falls back to "now". NO

# Data Output

Key Info
results Contains information on allocations and direct assignments by IANA and the RIR(s) authoritative for the resource. Each block has the following structure:

resource the exact resource this entry is about
status the status according to the RIR or IANA delegation statistics
timelines list of time intervals (starttime and endtime) this entry was valid for
query_starttime Defines the starttime the query covers
query_endtime Defines the endtime the query covers
resource Defines the resource used for the query

# Code Examples

# Available versions for this data call:

1.0

Difference to 1.*: "resource" field for AS queries is with the "AS" prefix

1.1
Last Updated: Wednesday, 13 September 2023