Reverse Phone Lookup Guam

Reverse Phone Number Lookup in Guam

Guam has approximately 185,000+ active mobile phone numbers. Landline and VoIP subscription numbers are unavailable. Cell phones make up the majority with 185,000 users.

This means that when you search a Guam phone number, it's most likely a cell phone.

Guam Voice Subscriptions (in thousands):

Source: FCC Voice Telephone Services Report

Top 5 US Cell Phone Companies

Most phone numbers are cell phones, and most cell phone numbers come from the top three United States wireless companies. Here are the top five US Cell Phone Companies in Q1 2025:

• Verizon - 146 million customers
• T-Mobile US - 131 million customers
• AT&T Mobility - 118 million customers
• Boost Mobile - 7 million customers
• U.S. Cellular - 4.4 million customers

Guam Area Code Lookup

To identify the location of an Guam phone number, you need to understand the North American Numbering Plan (NANP) structure that all Guam numbers follow: +1 NPA NXX XXXX.

• +1 - Country code indicating the United States
• NPA - The area code reveals the geographic region where the number was originally assigned
• NXX - Central office code that locates the specific neighborhood and identifies the service provider
• XXXX - Subscriber number identifies the individual phone line within that local exchange

The area code (NPA) is your key to determining location. By matching the three-digit area code to Guam's regional assignments, you can identify which part of the state the phone number originates from. Each area code corresponds to specific cities and counties throughout Guam, making it possible to narrow down the caller's general location.

Here's a complete list of Guam area codes with major cities:

For latest Guam phone numbering regulations, contact at the via or .

Verify Phone Number Owner to avoid Scam Calls Guam Fraud Statistics

According to the Federal Trade Commission's 2024 data, phone calls and text messages make up 35% of all fraud contact methods nationwide:

• Phone calls: 19% of fraud reports (284,659 reports, $948M in losses)
• Text messages: 16% of fraud reports (246,784 reports, $470M in losses)

More than 1 in 3 fraud attempts happen through phone communication. Phone call fraud costs victims a median of $1,500 per case. Text message fraud costs a median of $1,000 per victim.

In 2024, Guam residents reported fraud cases resulting in total losses of , with a median loss of $ per victim. With phone-based fraud representing such a significant portion of these cases, phone owner verification has become a critical consumer protection tool.

When you receive calls from unknown numbers, take a moment to research the caller's identity. Reverse phone lookup services allow you to search a phone number to find information about who's calling—including whether the number has been reported for fraudulent activity.

Received fraudulent calls or fallen victim to phone fraud? Report it immediately. Each report helps authorities identify fraud patterns and protect other consumers from similar scams.

Additional Contact:
Guam Attorney General