---
title: "Area code 602: Arizona, United States"
url: "https://lookvalid.com/area-code/602.md"
canonical_url: "https://lookvalid.com/area-code/602"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 602 serves Arizona, United States. Number formats, numbering rules, a live phone validator and the other codes in Arizona."
---

# Area code 602: Arizona, United States

Area code 602 serves Arizona, United States. Number formats, numbering rules, a live phone validator and the other codes in Arizona.

NANPA lists 744 central office codes (prefixes) in use in area code 602, held by 32 holders across 1 rate center.
The largest rate center is PHOENIX, with 744 prefixes (100%).
Qwest holds the most prefixes, 265 (36%). 55% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 4,204 complaints on file for 3,289 numbers in 602, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 1947-01-01
- Time zone: Mountain (M)
- Assigned overlays: 480 (1999-03-01), 623 (1999-03-01)
- Prefixes in use: 744
- Pooled prefixes: 407 (55%)
- Rate centers: 1
- Companies holding prefixes: 32
- Assignment dates on file: 2001-01-02 to 2026-05-19 (212 prefixes)
- ZIP codes in its places: 77

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| PHOENIX | 744 | 100% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| Qwest | 265 | 36% |
| Verizon Wireless | 108 | 15% |
| T-Mobile USA | 98 | 13% |
| New Cingular Wireless PCS | 47 | 6% |
| Onvoy | 33 | 4% |
| Teleport Communications America | 25 | 3% |
| 26 other carriers | 168 | 23% |

A prefix holder is the company a code was assigned to, not necessarily a number's current carrier, because numbers can be ported to another company.

## History

- 1947-01-01: Area code 602 went into service.
- 1995-03-19: Area code 520 went into service and names 602 as its parent.
- 1999-03-01: Area code 480 went into service as an overlay in the same area as 602.
- 1999-03-01: Area code 623 went into service as an overlay in the same area as 602.

## Nearest area codes

The area codes closest to 602, measured between the centers of the ZIP code places they serve, are 520 (about 75 miles), 928 (about 80 miles), 702 (about 253 miles), 725 (about 253 miles) and 760 (about 279 miles).

## ZIP codes

77 ZIP codes fall in places that have a rate center in this area code. The places with the most are Phoenix, AZ (77 ZIP codes). A ZIP code and an area code are unrelated systems, so a ZIP code can sit in more than one area code and an area code spans many ZIP codes.

## Complaints on file

4,204 complaints for 3,289 numbers. Numbers whose latest complaint falls in each year:

- 2023: 185
- 2024: 208
- 2025: 200

## Questions

### Where is area code 602?

NANPA assigns area code 602 to Arizona, United States.

### In which state does area code 602 sit?

Arizona. 602 is one of 5 area codes the NANPA table assigns to the state.

### Which places does area code 602 cover?

The places with the most ZIP codes among the rate centers in 602 are Phoenix, AZ. The rate center list on this page shows all of them.

### Who owns area code 602?

NANPA assigns area codes. Within 602, Qwest holds the most prefixes, 265 prefixes or 36%.

### Which time zone does 602 use?

The NANPA NPA report lists the time zone for 602 as Mountain (M).

### What year did 602 enter service?

The NANPA NPA report gives an in-service date of 1947-01-01, so 602 has been in use since 1947.

### Does area code 602 have an overlay?

Yes. 480 (in service 1999-03-01) and 623 (in service 1999-03-01) share the same area with 602, so numbers from all of them are local to each other.

### Which area codes are nearest to 602?

The area codes closest to 602, measured between the centers of the ZIP code places they serve, are 520 (about 75 miles), 928 (about 80 miles), 702 (about 253 miles), 725 (about 253 miles) and 760 (about 279 miles).

### How many prefixes does area code 602 have?

NANPA's report dated 2026-10-17 lists 744 prefixes in service in 602, spread over 1 rate center and 32 holders.

### Are there complaints about 602 numbers?

The FCC data on file has 4,204 complaints for 3,289 numbers in 602. They are unverified consumer reports. A number with no complaints on file is not proven safe.

Sources: NANPA central office code report dated 2026-10-17; NANPA NPA report dated 2026-10-18; FCC unwanted-call complaints, data fetched 2026-10-17; ZIP code places from GeoNames (CC BY 4.0).