Network Utilities

IP Lookup, CIDR Calculator, MAC Address Lookup, and Port Number Lookup
Examples:

IP Address Information

Located in Ashburn, United States
3.238.116.37
IP Address 3.238.116.37
Hostname ec2-3-238-116-37.compute-1.amazonaws.com
City Ashburn
Region Virginia
Country United States
Phone Code 1
Geo Location 39.0481,-77.4728
Organization Amazon.com, Inc.
ASN Number 14618
API Call

Get JSON results via command line with either curl or wget.

Try it:
curl "https://steamr.com/3.238.116.37" 

{
    "ip": "3.238.116.37",
    "hostname": "ec2-3-238-116-37.compute-1.amazonaws.com",
    "city": "Ashburn",
    "region": "Virginia",
    "country": "US",
    "country_name": "United States",
    "phone_code": "1",
    "location": "39.0481,-77.4728",
    "postal": "20149",
    "organization": "Amazon.com, Inc.",
    "asn": 14618
}