KeyValue
asnASN numbers are used by various routing protocols. Value range: 0-65536.
Example using query parameters: 
curl -x https://network.joinmassive.com:65535 \
     -U '{PROXY_USERNAME}-asn-7018:{API_KEY}' \
     https://cloudflare.com/cdn-cgi/trace
This parameter can be used in combination with all other options. The following request targets by ASN in United States: 
curl -x https://network.joinmassive.com:65535 \
     -U '{PROXY_USERNAME}-country-US-asn-7018:{API_KEY}' \
     https://cloudflare.com/cdn-cgi/trace