# Prefix Count
This data call shows the number of prefixes announced by a given ASN over time.
GET /data/prefix-count/data.json?resource=AS3333&starttime=2008-01-01T00:00:00
# Parameters
| Key | Value | Info | Required |
|---|---|---|---|
| resource | AS for the query | - | YES |
| starttime | ISO8601 or Unix timestamp | default: Jan 1st 2000 | NO |
| endtime | ISO8601 or Unix timestamp | default: now | NO |
| min_peers_seeing | integer | Minimum number of RIS peers seeing the prefix for it to be included in the results. Excludes low-visibility/localized announcements. | NO (default: 10) |
| resolution | "8h" (8 hours),"2d" (2 days) or "12d" (12 days) | Defines the resolution/aggregation for the returned data, e.g. "2d" means that changes in the data must persist for longer than 2 days to be visible at this resolution. | NO (default: "12d") |
# Data Output
| Key | Info |
|---|---|
| ipv4 | Contains a series of incremental changes per timestamp on the IPv4 prefixes announced by the AS |
| ipv6 | Contains a series of incremental changes per timestamp on the IPv6 prefixes announced by the AS |
| timestamp | Time of the data point |
| prefixes | Number of prefixes announced by the AS at that point in time |
| address-space | Amount of address space, in terms of /24 (for IPv4) or /48 (for IPv6) subnets, anounced by the AS at that point in time |
| resource | holds the resource this query based on |
| query_starttime | the beginning of the time period the query covers |
| query_endtime | the end of the time period the query covers |
| resolution | states the resolution of the returned data |
# Code Examples
# Available versions for this data call:
1.2
This is the current and only version of this API call.