International Phone Number Lookup

International Phone Number Lookup Results May Include

Phone number search results vary by country, phone type, and data availability.

Phone Number Lookup by Country

Search phone numbers from around the world to identify the caller's country of origin and other available information. Select a country below to access local white and yellow pages, phone number directories, carrier information, numbering plans, formatting and more.

United States Phone Lookup +1

Canada Phone Lookup +1

Australia Phone Lookup +61

United Kingdom Phone Lookup +44

Ireland Phone Lookup +353

Germany Phone Lookup +49

Italy Phone Lookup +39

Norway Phone Lookup +47

Sweden Phone Lookup +46

Israel Phone Lookup +972

New Zealand Phone Lookup +64

South Africa Phone Lookup +27

Looking for a different country? Visit our phone number country checker page to browse our complete list of all 200+ supported countries.

How Our International Phone Number Lookup Works

Our lookup runs two separate processes depending on a phone number country of origin.

International Numbers

When you enter a non-U.S. phone number, the system relies on a phone number intelligence engine built on the same technology that handles number processing across billions of devices.

Parsing and country detection. The system reads whatever you've typed or pasted, whether it includes the "+" prefix, dashes, spaces, or some other format. It figures out the country from the calling code and the national numbering plan. A number starting with +44 gets tagged as United Kingdom, +91 as India, +61 as Australia phone number.

Validation. Once the country is known, the number gets checked against that country's official numbering rules: length, prefix structure, and whether it matches patterns assigned by the national telecom authority. If it doesn't match anything valid, the system flags it. This catches fake or badly formatted numbers early.

Line type classification. The system determines what kind of line the number belongs to. It can tell apart landlines, mobile phones, toll-free lines, premium rate numbers, shared cost numbers, VoIP lines, personal numbers, and sometimes even pagers or voicemail-only lines. How much detail you get here depends on whether the country's numbering plan actually distinguishes between these types.

Geographic mapping. For numbers that carry location data (mostly landlines and certain mobile ranges), the system maps them to a city or region. A UK number with a 020 prefix, for instance, gets identified as London. This works across hundreds of countries.

Carrier identification. The system identifies the telecom carrier originally assigned to that number's range. A German mobile number might come back as Deutsche Telekom, Vodafone, or O2. Important: number portability means people can switch carriers and keep their number, so the original carrier and the current one aren't always the same.

Time zone detection. Based on the country and region, the system also returns the applicable time zone and local time. It's very useful if you're deciding whether to call back and want to know what time it is on the other end.

United States Numbers

For United States phone numbers with a +1 country code, the lookup goes further.

U.S. numbers get searched against a database built from publicly available government records. This database pulls records from millions of federal, state, county, and city level public filings: business registrations, professional licenses, contractor permits, and other documents where phone numbers are legally required to appear.

So while an international lookup on a number from, say, the Philippines or Germany will give you country, region, carrier, line type, and time zone, a U.S. lookup can surface the actual name and address tied to the number.

Why Results Vary

The difference comes down to data availability. The U.S. has extensive public records that make owner identification possible. Most other countries, particularly those in the EU under GDPR, restrict what personal data can be linked to a phone number in any public database. That's why international lookups are limited to technical and geographic details, while U.S. lookups can include more detailed information.

5 Types of International Phone Numbers You Can Look Up

Understanding International Phone Number Formats

E.164 Standard Format

Every phone number lookup starts the same way: converting the input into E.164 format. E.164 is the ITU standard that assigns a globally unique number to every device on the public telephone network. The structure looks like this:

+[Country Code][National Destination Code][Subscriber Number]

The whole thing, minus the leading "+", caps out at 15 digits. Country codes take up one to three of those digits. The rest split between the national destination code (the area code, basically) and the subscriber number. No spaces, no dashes, no parentheses. A London landline written locally as 020 7946 0958 becomes +442079460958.

Any lookup tool worth using will normalize your input to E.164 before querying anything. If the tool can't parse what you've typed into this format, the query either fails or returns bad data.

Trunk Prefixes vs. Country Codes

The most common input mistake is confusing trunk prefixes with country codes.

A country code identifies the country in the global numbering plan. The US and Canada share 1. The UK uses 44. Japan uses 81. These appear right after the "+" in E.164 format.

A trunk prefix is a domestic-only digit that tells the local network to route a call outside the caller's immediate area. In most countries it's 0. When someone in the UK dials 020 7946 0958, that leading "0" is the trunk prefix. It does not appear in the international number. From outside the UK, the number is +44 20 7946 0958.

There's also the international prefix (or exit code), which callers dial from landlines before the destination country code. Most of the world uses 00. The US and Canada use 011. On mobile phones, the "+" symbol replaces whatever exit code your country uses.

Here's why this matters for lookups: if you enter a number with the trunk prefix still attached, like 07911 123456 for a UK mobile, the lookup system needs to strip the "0" and prepend +44 to get +447911123456. If it doesn't handle that conversion, you'll get an error or a wrong result. Some tools ask you to select the country first for exactly this reason.

Why the Same Number Can Appear in Different Formats

Take a German mobile number. You might see it written as:

• 0171 1234567 (domestic, with trunk prefix)
• +49 171 1234567 (international, with spaces for readability)
• +491711234567 (strict E.164, no spaces)
• 0049 171 1234567 (using the "00" exit code instead of "+")
• 171 1234567 (local, no prefix at all)

All five represent the same number. The differences come from national formatting conventions and context. France groups digits in pairs. The US uses a three-three-four pattern. Italy folded the old trunk prefix into the number itself, so you dial the "0" even on international calls.

Number lengths also vary by country. US numbers are always 10 digits (area code plus seven). UK numbers run 10 or 11 digits. German and Argentine numbers have variable lengths depending on the city.

When you paste a number into a lookup tool, the system has to figure out all of this: identify the country, strip any formatting and trunk prefixes, and produce a clean E.164 string. If you're getting weird results, try entering the number in full international format with the "+" and country code yourself. That removes the guesswork.