Skip to content

IP LookupASN, ISP, route, reverse DNS and location for any address.
IPv4 LookupDetails and formats for any IPv4 address.
IPv6 LookupDetails, expansion and compression for any IPv6 address.
IP LocationApproximate geolocation with sources and accuracy.
IPv6 TestDoes your connection work over IPv4, IPv6 or both?
IP Address ValidatorCheck whether an address is valid, and what kind of address it is.

DNS LookupA, AAAA, MX, TXT, NS, SOA, CAA and more with TTLs.
Reverse DNSPTR records with forward confirmation.
DNS PropagationCompare answers from several public resolvers.
WHOIS / RDAPRegistration data for domains, IP networks and ASNs.
TLS Certificate CheckThe certificate a server presents, its chain and expiry.
HTTP HeadersYour request headers, and the response headers of any public URL.

ASN LookupHolder, registry and every prefix an AS announces.
IP Range to CIDRConvert an address range into the smallest set of CIDR blocks.
CIDR CalculatorNetwork, broadcast, masks and host counts for any prefix.
Subnet CalculatorSplit networks into subnets, IPv4 and IPv6.
IP ConverterBinary, hex, integer, expanded and reverse forms of an address.
IPv4 to IPv6IPv4-mapped, 6to4 and NAT64 representations.

Guides How it works

roRomână
enEnglish
itItaliano
deDeutsch
frFrançais
esEspañol
trTürkçe
ja日本語
zh简体中文

Home
IP Address Lookup
172.65.65.66

172.65.65.66

IPv4Public

Loading…

Loading…

Loading…

Loading…

Your IP address, network and connection — clearly explained.

Data source status →

IP tools

What is my IP
IP Lookup
IP Location
IPv6 Test
IP Address Validator
IP Converter

DNS tools

DNS Lookup
Reverse DNS
DNS Propagation
WHOIS / RDAP
TLS Certificate Check
HTTP Headers

Network

ASN Lookup
IP Range to CIDR
CIDR Calculator
Subnet Calculator
IPv4 to IPv6

Resources

Guides
IPv4 explained
IPv6 explained
DNS records
How IP geolocation works

Company

About
How it works
API
Contact
Privacy Policy
Terms of Use

© 2026 ipaddress.ro · IP location data is approximate. Not for emergency use or identifying individuals.

Our own datasets, rebuilt daily from: DB-IP Lite (CC BY 4.0) · GeoNames (CC BY 4.0)

IP information

IP address: 172.65.65.66
Version: IPv4
Scope: Public
Hostname: No PTR record is published for this address.
PTR record: No PTR record is published for this address.
Forward-confirmed: Not available

Network

Source: Routing & registry data (own)

ASNRouting data: From routing and registry data. via Routing & registry data (own): AS13335
AS organization: Cloudflare, Inc.
ISP: Cloudflare, Inc.
AS organization
Organization: Cloudflare, Inc.
Network: 172.65.64.0/20
BGP routeRouting data

Location

Approximate

Toronto, Ontario, Canada

Marker shows the estimated centre of the area; the circle indicates uncertainty. Never use IP location to find a person or a street address.

CountryEstimated: Estimated from IP databases. IP location is approximate and can be wrong. via Geolocation data (own, DB-IP Lite + GeoNames): CanadaCA
RegionEstimated: Estimated from IP databases. IP location is approximate and can be wrong. via Geolocation data (own, DB-IP Lite + GeoNames): Ontario
CityEstimated: Estimated from IP databases. IP location is approximate and can be wrong. via Geolocation data (own, DB-IP Lite + GeoNames)

Security

ProxyNot available
VPNNot available
Tor exit nodeNot detected
Hosting providerDetected
Privacy relayNot available
Mobile networkNot available
AnycastNot available
Bot indicationNot available

Classifications come from the listed providers and public lists. A negative result means no provider flagged the address — not a guarantee.

Loading…

Address formats

Integer: 2889957698
Hexadecimal: 0xac414142
Binary: 10101100.01000001.01000001.01000010
Reverse DNS name: 66.65.65.172.in-addr.arpa
IPv4-mapped IPv6

Data sources for this page:Routing & registry data (own)Tor exit list (own copy)Geolocation data (own, DB-IP Lite + GeoNames)

: From routing and registry data. via BGP table (own copy)

172.65.64.0/20Origin AS AS13335

Connection typeInferred: Inferred from the network's name (“Cloudflare”). A heuristic, not a fact.

Hosting / data center

Inferred from the network's name (“Cloudflare”). A heuristic, not a fact.

RegistryRegistry: From the regional internet registry's delegation record.

ARIN · allocated

172.64.0.0 – 172.71.255.255

Registered country

🇺🇸United States

Allocated

Feb 25, 2015

Toronto

Postal code

Not available

Time zoneEstimated: Estimated from IP databases. IP location is approximate and can be wrong. via Geolocation data (own, DB-IP Lite + GeoNames)

America/Toronto (UTC-4)

Local time: 5:27 AM

CoordinatesEstimated: Estimated from IP databases. IP location is approximate and can be wrong. via Geolocation data (own, DB-IP Lite + GeoNames)

43.65, -79.38

Accuracy radius: ~25 km

CurrencyDerived: Derived from the country

Canadian Dollar (CAD)

Continent

North America

EU member state

No

Estimated from IP databases. IP location is approximate and can be wrong.

::ffff:172.65.65.66

::ffff:ac41:4142

6to4 prefix

2002:ac41:4142::/48

Registration (RDAP)

rdap.arin.net

Network name: CLOUDFLARENET
Handle: NET-172-64-0-0-1
Address range: 172.64.0.0 – 172.71.255.255
172.64.0.0/13
Organization: Cloudflare, Inc.
Country: Not available
Type: DIRECT ALLOCATION
Registered: Feb 26, 2015
Last changed: Sep 4, 2024
Abuse contact: [email protected]

Full WHOIS / RDAP record →