The 602 area code serves the city of Phoenix, the capital and largest city of Arizona. One of the original area codes assigned in 1947, 602 once covered the entire state before repeated splits reduced it to the central Phoenix core in the heart of the Valley of the Sun.
Quick Summary of the 602 Area Code
| Area Code | 602 |
| State | Arizona (AZ) |
| Region | Central Phoenix |
| Major Cities | Phoenix, and the central-city neighborhoods of Arizona’s capital |
| Time Zone | Mountain Standard Time (MST) – no daylight saving |
| Dialing Format | 7 or 10-digit dialing |
Geographic Coverage
The 602 area code is concentrated in the city of Phoenix itself, covering the downtown core, midtown, and the surrounding central-city neighborhoods. It is ringed by the 480 area code across the East Valley, the 623 area code across the West Valley, and together the three codes serve the sprawling Phoenix metropolitan area, one of the fastest-growing regions in the United States.
Time Zone
The 602 area code observes Mountain Standard Time (MST, UTC−7), but Arizona is unusual: it does not observe daylight saving time and keeps the same clock all year. This produces an interesting effect – in winter the region is on Mountain Time, one hour ahead of the West Coast, but in summer, when other states spring forward and Arizona does not, the 602 area effectively matches Pacific Daylight Time and shares the same clock as California.
Tip: Business hours across the 602 region generally run 9:00 AM to 5:00 PM local time, Monday through Friday.
How to Dial a 602 Number
Area code 602 is not part of an overlay, so it has traditionally allowed 7-digit local dialing. However, 10-digit dialing is now the recommended nationwide standard, and dialing the full 10-digit number (602 + the line number) always works reliably. For international callers, dial your country’s exit code, then +1 (the North American country code), then 602, followed by the seven-digit local number.
Scam Alerts for the 602 Area Code
Like every U.S. area code, 602 has been used by scammers who spoof local numbers to appear trustworthy. Residents in Phoenix, and the central-city neighborhoods of Arizona’s capital should stay alert to the following common tactics:
| Scam Type | What to Watch For |
|---|---|
| IRS / Tax Scams | Callers claiming you owe back taxes and threatening arrest unless you pay immediately. |
| Utility Shut-off | Fake APS or SRP reps demanding payment to avoid disconnection in the desert heat. |
| Bank Fraud Alerts | Robocalls impersonating your bank about “suspicious activity” to phish account details. |
| Grandparent Scam | A caller posing as a relative in trouble asking for emergency wire transfers. |
If you receive a suspicious call from a 602 number, take these steps to protect yourself:
- Do not share personal information such as Social Security numbers, bank details, or passwords over the phone.
- Hang up and verify by calling the organization back using an official number from its website.
- Report the call to the FTC at reportfraud.ftc.gov and to the Arizona Attorney General’s Office.
- Block the number and consider registering with the National Do Not Call Registry.
Red Flag: Legitimate agencies such as the IRS, Social Security Administration, or your local utility company (APS, SRP, or Tucson Electric Power) will never demand immediate payment by gift card, wire transfer, or cryptocurrency. Any 602 caller making such a demand is a scammer.
History and Economy of the 602 Region
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Area code 602 is one of the original 86 codes established in 1947, and it once covered all of Arizona before 520 (1995), 480 (1999), and 623 (1999) were split off, leaving 602 focused on the city of Phoenix. As the state capital and largest city, Phoenix anchors a diverse and rapidly expanding economy built on financial services and banking, aerospace and defense manufacturing led by Honeywell Aerospace, a growing semiconductor and technology sector, healthcare, real estate, and tourism. The city’s warm winters and resort culture make hospitality a year-round economic engine.
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Looking Up a 602 Number
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To identify a 602 caller, use a reverse phone lookup service or search the full 10-digit number online. Many Phoenix businesses, government offices, and healthcare providers list their 602 numbers publicly, so a quick search often confirms a legitimate caller. For unknown numbers, let the call go to voicemail – genuine callers usually leave a message.
Nearby & Related Area Codes
Arizona is served by several area codes. If you are researching 602, these neighboring codes are worth knowing:
- 480 – East Valley / Scottsdale & Mesa
- 623 – West Valley / Glendale
- 520 – Southern AZ / Tucson
- 928 – Northern & Western AZ / Flagstaff
You can also browse our full directory of Arizona area codes for more regional guides.
↑ See the complete list of All US Area Codes by State – every area code across all 50 states in one directory.
Explore Neighboring States
Researching area codes just across the state line? Start with these codes in the states that border Arizona:
- California – area code 213
- Nevada – area code 702
- Utah – area code 801
- Colorado – area code 303
- New Mexico – area code 505
Frequently Asked Questions
Where is the 602 area code located?
The 602 area code covers the city of Phoenix, Arizona, including its downtown, midtown, and central-city neighborhoods.
Does 602 have an overlay?
No. The 602 area code covers the city of Phoenix on its own and currently has no overlay code.
Do I need to dial 10 digits for 602?
Because 602 has no overlay, 7-digit local dialing has historically worked, but dialing the full 10 digits is now the recommended standard and always works.
Does the 602 area code observe daylight saving time?
No. Like almost all of Arizona, the 602 area stays on Mountain Standard Time year-round and does not change its clocks.
Related 602 Guides
- Is a 602 call safe? Read Is area code 602 a scam? Spam & safety guide.
- Local coverage: see the Phoenix area code guide.
- Worried about spam or robocalls? Browse our Scam Alerts directory.