Home to the main campus of Arizona State University, Tempe is a compact, energetic East Valley city built around Mill Avenue and the man-made Tempe Town Lake. It sits within Greater Phoenix’s East Valley 480 code. This guide breaks down Tempe’s area codes, the required 10-digit dialing, the no-daylight-saving time quirk, major ZIP codes, and local scam warnings.
Tempe Area Codes at a Glance
| Detail | Information |
|---|---|
| Primary Area Code(s) | 480 |
| Overlay / Adjacent Code(s) | 602 (metro) |
| Time Zone | Mountain Standard Time (MST) – no daylight saving time |
| Major County | Maricopa County |
| Dialing Format | 10-digit dialing required |
Area Code Breakdown & Valley Mapping
480 – East Valley Code
Area code 480 is the East Valley code, covering Tempe, Mesa, Chandler, Gilbert, and Scottsdale. Split from 602 in 1999, it is Tempe’s primary code in the heart of the East Valley.
602 – Central Phoenix Code
Area code 602 is the central Phoenix code, and because Tempe borders the city of Phoenix and calls across the Valley are local, 602 numbers appear throughout the metro alongside Tempe’s 480.
Neighborhoods & Local Coverage
Tempe’s 480 code covers a lively college city centered on Downtown Tempe and the Mill Avenue district, a walkable strip of bars, restaurants, and shops next to the Arizona State University campus. Tempe Town Lake and its parks anchor the north edge of downtown along the Salt River bed.
Beyond the campus core, the same codes reach the residential neighborhoods of South Tempe around the Warner and Elliot corridors, the Tempe Marketplace shopping district, and the office parks near Phoenix Sky Harbor Airport just to the west. As part of the East Valley, Tempe shares the 480 code with Mesa, Chandler, and Scottsdale.
Local Dialing Rules, Time Zone & International Format
Because Greater Phoenix is served by three interleaving area codes, Tempe and the East Valley require 10-digit dialing for local calls — always dial the area code plus the 7-digit number. The East Valley uses 480, while central Phoenix uses 602 and the West Valley uses 623.
A note on Arizona time: Arizona does not observe daylight saving time, so it stays on Mountain Standard Time (MST) all year. In the summer, that means Tempe shares the same clock as Pacific Time cities like Los Angeles, while in winter it matches Denver on Mountain Time. Keep this in mind when scheduling calls across state lines.
To call Tempe from outside the United States, dial your country’s exit code, then the U.S. country code +1, followed by the 10-digit number (for example, +1 480 XXX-XXXX). From inside the U.S. and Canada, simply dial 1 before the 10-digit number for long-distance calls.
Major ZIP Codes Covered
The 480 service area spans many of Tempe’s core ZIP codes, including 85281, 85282, 85283, 85284, and 85287.
Spam & Scam Call Warnings in Tempe
Tempe residents report spoofed 480 robocalls targeting ASU students with fake-tuition, scholarship, and rental-deposit scams. Utility-shutoff threats from callers posing as SRP and auto-warranty robocalls are also common.
| Scam Type | What to Watch For |
|---|---|
| Neighbor Spoofing | Calls that mimic a local 480 prefix to look familiar. |
| Utility / Toll Scams | Threats to shut off power or demand toll payment via gift cards. |
| IRS / Government | Robocalls claiming legal action — agencies never call to demand instant payment. |
Red flag: Any caller who pressures you to pay immediately with gift cards, wire transfers, or cryptocurrency is almost certainly running a scam. Hang up and verify through an official number.
↑ See the complete list of All US Area Codes by State for every code across the country.
Nearby & Related Arizona Cities
Frequently Asked Questions
What area code is Tempe, AZ?
Tempe uses the East Valley code 480, with central Phoenix’s 602 also appearing across the metro.
Does Tempe have the same area code as Mesa?
Yes. Tempe, Mesa, Chandler, and Scottsdale all use the 480 East Valley code.
Do I need to dial 10 digits in Tempe?
Yes. Because Greater Phoenix spans three area codes, all local calls require 10-digit dialing.
Does Tempe observe daylight saving time?
No. Tempe and most of Arizona stay on Mountain Standard Time year-round.
Stay Safe & Explore More
- Verify an unknown caller in our Scam Alerts directory.
- Comparing nationwide numbers? See our Toll-Free Numbers guides.