IPTool IPTool

Fast system administrator tools

IP address

Look up any IPv4 or IPv6 address to find its geolocation, ISP, ASN and abuse contact. Useful for investigating suspicious traffic, verifying VPN exit nodes or checking IP reputation.

IP information

IP 216.73.216.71
DNS PTR
Provider Amazon.com
ASN AS16509
AS name AMAZON-02
Organization Amazon Technologies Inc.
Geo Columbus, Ohio, United States
Timezone America/New_York
Lat / Lon 39.96118, -82.99879

WHOIS

inetnum:        216.67.231.0 - 216.83.207.255
netname:        NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK
descr:          IPv4 address block not managed by the RIPE NCC
remarks:        ------------------------------------------------------
remarks:
remarks:        For registration information,
remarks:        you can consult the following sources:
remarks:
remarks:        IANA
remarks:        http://www.iana.org/assignments/ipv4-address-space
remarks:        http://www.iana.org/assignments/iana-ipv4-special-registry
remarks:        http://www.iana.org/assignments/ipv4-recovered-address-space
remarks:
remarks:        AFRINIC (Africa)
remarks:        http://www.afrinic.net/ whois.afrinic.net
remarks:
remarks:        APNIC (Asia Pacific)
remarks:        http://www.apnic.net/ whois.apnic.net
remarks:
remarks:        ARIN (Northern America)
remarks:        http://www.arin.net/ whois.arin.net
remarks:
remarks:        LACNIC (Latin America and the Carribean)
remarks:        http://www.lacnic.net/ whois.lacnic.net
remarks:
remarks:        ------------------------------------------------------
country:        EU # Country is really world wide
admin-c:        IANA1-RIPE
tech-c:         IANA1-RIPE
status:         ALLOCATED UNSPECIFIED
mnt-by:         RIPE-NCC-HM-MNT
created:        2023-06-14T14:42:56Z
last-modified:  2023-06-14T14:42:56Z
source:         RIPE

role:           Internet Assigned Numbers Authority
address:        see http://www.iana.org.
admin-c:        IANA1-RIPE
tech-c:         IANA1-RIPE
nic-hdl:        IANA1-RIPE
remarks:        For more information on IANA services
remarks:        go to IANA web site at http://www.iana.org.
mnt-by:         RIPE-NCC-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T09:31:27Z
source:         RIPE # Filtered

What it is

An IP address identifies a host in a network. There are IPv4 and IPv6, plus private and public ranges.

How it works

Check address type, geo, AS affiliation and WHOIS. Private ranges have no public geo/WHOIS.

Examples

  • Private IPv4: 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16.
  • Loopback: 127.0.0.0/8.

Limitations & notes

GEOIP is approximate and depends on databases. Proxies/VPN may distort detection.

FAQ

  • Why is my location off? GeoIP databases map IP addresses to approximate locations based on ISP registration data, not GPS. Accuracy varies from city-level to country-level depending on the provider and region. VPNs and mobile carriers can shift the reported location significantly.
  • What is CIDR? CIDR (Classless Inter-Domain Routing) is a compact notation for IP address ranges. For example, 192.168.1.0/24 means all addresses from 192.168.1.0 to 192.168.1.255 - the number after the slash indicates how many bits are fixed in the network prefix.
  • What is the difference between IPv4 and IPv6? IPv4 uses 32-bit addresses (about 4.3 billion total), while IPv6 uses 128-bit addresses (practically unlimited). IPv6 was designed to solve address exhaustion and simplify routing, but both protocols are widely used today.
  • What is PTR record? A PTR (pointer) record maps an IP address back to a hostname - the reverse of a regular DNS lookup. It is commonly used to verify mail server identity and to add context in server logs and traceroutes.

Related tools