Area Code 602 — Phoenix, Arizona

NANP area code

602

UTC−7

State
Arizona
Primary city
Phoenix
Time zone
Mountain (no DST)
In service
1947
Overlays
480, 623

The code reaches 39 communities and 2 counties across Arizona.

Was this call legitimate?

The area code itself carries no risk signal. 602 is assigned to Phoenix, Arizona, so a call from it is consistent with a real caller in that area — but the digits alone prove nothing, because they can be forged.

Caller ID is set by whoever places the call, not verified by the network. That is why neighbour spoofing works: an operation anywhere in the world can display a number that matches the area code — and often the first three digits after it — of the person being called, so the call looks local. Every community in the 602 territory is a plausible-looking origin for a forged 602 number, which is why one can be made to look like a neighbour to so many people. The same applies to its overlay codes 480 and 623, which serve the same ground.

If you did not recognise the call: let it go to voicemail — a legitimate caller with real business will leave one. Do not return the call using the number shown; look the organisation up independently and call the number you found. Never confirm personal details, card numbers, or one-time codes to someone who called you, however plausible the number looked.

Codes.zone publishes no complaint counts, risk scores, or caller identities. We hold no data on individual numbers and will not estimate what we cannot source.

Local time and when to call back

Time there now

Mountain (no DST) · UTC−7

Reasonable callback window

8:00 AM – 9:00 PM

local time in Mountain (no DST)

Federal rules bar telemarketing calls to a residence outside 8:00 AM–9:00 PM in the called party's own time zone. It is a sensible bound for a personal callback too — and a caller who rang you well outside it was not observing it.

Overlay codes and ten-digit dialling

602 does not have its territory to itself. 480 and 623 cover the same ground, serving Phoenix and the rest of the 602 territory. An overlay is what a regulator adds when a region runs out of assignable numbers: rather than splitting the area and forcing half the residents to change their number, a second code is laid over the top and new numbers are issued from it.

The practical consequence: two neighbours on the same street can hold numbers in different area codes, so the code tells you nothing about which part of town a caller is in — and local calls must be dialled as all ten digits, because seven is no longer unambiguous.

Cities served

largest 20 by ZIP count
Communities served by area code 602, ranked by how many ZIP codes each holds.
CityZIP codesCounty
Phoenix77Maricopa County
Mesa19Maricopa County
Scottsdale15Maricopa County
Glendale12Maricopa County
Chandler8Maricopa County
Tempe8Maricopa County
Gilbert7Maricopa County
Peoria6Maricopa County
Surprise5Maricopa County
Sun City3Maricopa County
Avondale2Maricopa County
Buckeye2Maricopa County
Cave Creek2Maricopa County
Fountain Hills2Maricopa County
Goodyear2Maricopa County
Sun City West2Maricopa County
Arlington1Maricopa County
Black Canyon City1Yavapai County
Carefree1Maricopa County
Cashion1Maricopa County

19 further communities not listed. All Arizona area codes →

Each point is a community served by 602, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Scope every community matched to 602. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot), GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . Coordinates are place reference points, not boundaries.

Counties

Prefixes inside 602

We do not publish the NXX prefixes inside 602. The assignment of prefixes to rate centres comes from LERG routing data, which is proprietary, and we will not estimate it from postal data — ZIP codes and telephone prefixes do not map onto each other. Awaiting a clean-rights NPA-NXX source.

Why this code exists

602 has served this territory since 1947. It eventually ran short of exchanges to hand out, and rather than split the region and make half its residents change their number, the regulator laid 480 over the same ground in 1999 and 623 over the same ground in 1999. New lines here are issued from the newer code, which is why a neighbour’s number may not start with 602.