Does every range have a timezone?

Every range IP Geolocation places in a city: all but the few in Bouvet Island (BV) and Heard Island (HM).

Does it agree with IP Geolocation?

Yes. A range's zone is the one IP Geolocation gives it, its city's, with neighbors in the same zone merged into one row.

Open

Every IP range, resolved to its timezone.

An IANA timezone for every IPv4 and IPv6 range, with its country: the zone of the city IP Geolocation places it in, neighbors in the same zone merged into one row.

In the lookup API: location.timezone, on every plan, free included.

Real rows, with what each column means.

See documentation →

The schema and metadata are in the docs. It is published as CSVGZ and MMDB.

start_ip	end_ip	timezone	country
1.0.16.0	1.0.31.255	Asia/Tokyo	JP
5.196.42.160	5.196.42.191	Europe/Warsaw	PL
17.30.12.0	17.30.13.255	Europe/Berlin	DE
23.192.190.0	23.192.190.255	America/Sao_Paulo	BR
2a02:26f7:f7c0:e121::	2a02:26f7:f7c0:e121:ffff:ffff:ffff:ffff	America/Bogota	CO

ip_timezone_v1

Entries

2,561,434

Refresh

Daily

CSVGZ

17.56 MB

MMDB

8.36 MB

Download it from your code in one call.

Database API reference →

Every official client fetches the current IP Timezone build to disk, as a link for your own runner or into memory, and checks it against its published checksums.

download()

Streams the current build to a file, which lands only once the whole transfer has arrived, so a failed one never leaves a truncated file behind.

downloadUrl()

The time-limited link the API redirects to, for your own downloader, a job runner or a CDN pull.

downloadBytes()

The build in memory, for a small database or a pipeline that never touches a filesystem.

metadata()

Row count, file sizes and when the build last updated. Poll it and fetch only when a new one has landed.

checksums()

The md5, sha1, sha256 and sha512 digests of one file, to verify it once it lands.

import os
from internetdata import InternetData
 
client = InternetData(os.environ["INTERNETDATA_API_KEY"])
 
# what is in today's build, without moving the file
meta = client.database.metadata("ip_timezone_v1")
 
client.database.download("ip_timezone_v1", "mmdb", "./ip_timezone_v1.mmdb")
sums = client.database.checksums("ip_timezone_v1", "mmdb")
print(meta.updated, meta.entries, sums["sha256"])

load.pypip install internetdata

Also available for .NET, Ruby, Rust, Swift, Erlang, Perl and Zig. See all on GitHub →

Put it to work in your own systems.

Free with an account, and the file is yours: teams join IP Timezone against the traffic, logs and routing data they already hold, inside their own infrastructure.

Scheduling and delivery

Send a notification, a report or a campaign at the right local hour.

Log and analytics context

Read activity timestamps against the visitor's own clock instead of your server's.

Free with an account

Checksums published per file: md5, sha1, sha256 and sha512.

The ID fixes the schema, so a new build never changes the columns your parser reads.

Call the API in your language, with an official client.

All SDKs on GitHub →

Thirteen official clients, one for each language you ship in and one for the browser, plus middleware for seven web frameworks. Each answers private addresses without a request, caches what it looks up and splits big batches for you.

Node.js Web Python Go Java .NET PHP Ruby Rust Swift Erlang Perl Zig Express Fastify Next.js Django Flask FastAPI Laravel Symfony Rails Spring Boot ASP.NET Core net/http Gin axum Cowboy

Common questions

Read the docs →API reference →Email support →

On this page

What is in a row?

One range, both ends inclusive, its IANA timezone and its country. IPv4 and IPv6 are in the same file.

00 · Unlimited

Unlimited lookups, no sign-up.

Paste it into a terminal. Any address answers with its country, network, company and hostname, with no key and no daily or monthly cap. ASes and domains answer too.

curl https://api.internetdata.io/8.8.8.8

{
"ip": "8.8.8.8",
"is_bogon": false,
"is_tor": false,
"is_relay": false,
"is_anycast": true,
"is_carrier": false,
"is_satellite": false,
"is_ssh": false,
"is_smtp": false,
"is_web": true,
"is_dns_resolver": true,
"is_bittorrent": false,
"hostname": "dns.google",
"location": {
"continent": "NA",
"continent_name": "North America",
"country": "US",
"country_name": "United States",
"timezone": "America/Los_Angeles",
"currency_code": "USD",
"currency_name": "Dollar",
"currency_symbol": "$",
"flag_emoji": "🇺🇸",
"flag_unicode": "U+1F1FA U+1F1F8"
},
"asn": {
"asn": 15169,
"name": "Google LLC",
"domain": "google.com",
"type": "hosting",
"prefix": "8.8.8.0/24"
},
"company": {
"name": "Google LLC",
"domain": "google.com"
},
"tor": {},
"relay": {},
"abuse": {
"email": "network-abuse@google.com"
}
}

01 · Every field

All of the data on a paid plan.

VPN, proxy, hosting and CDN flags, each naming the operator.

Location to the city, with coordinates and an accuracy radius.

WHOIS records, the whole abuse contact and the services an address runs.

Up to 1,000 addresses, ASes and domains in one request.

A free API key answers every field for its first 100 lookups each day, with no card.

See pricing Get a free API key