---
title: "Area code 571: Virginia, United States"
url: "https://lookvalid.com/area-code/571.md"
canonical_url: "https://lookvalid.com/area-code/571"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 571 serves Virginia, United States. Number formats, numbering rules, a live phone validator and the other codes in Virginia."
---

# Area code 571: Virginia, United States

Area code 571 serves Virginia, United States. Number formats, numbering rules, a live phone validator and the other codes in Virginia.

NANPA lists 627 central office codes (prefixes) in use in area code 571, held by 38 holders across 19 rate centers.
Omnipoint Communications Cap Operations holds the most prefixes, 100 (16%). 96% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 3,461 complaints on file for 2,614 numbers in 571, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 2000-03-01
- Time zone: Eastern (E)
- Assigned overlays: 703 (1947-01-01)
- Prefixes in use: 627
- Pooled prefixes: 599 (96%)
- Rate centers: 19
- Companies holding prefixes: 38
- Assignment dates on file: 2001-01-17 to 2026-08-06 (564 prefixes)
- ZIP codes in its places: 28

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| WSNGTNZN08 | 127 | 20% |
| WSNGTNZN17 | 111 | 18% |
| HERNDON | 73 | 12% |
| WSNGTNZN19 | 67 | 11% |
| LEESBURG | 46 | 7% |
| MANASSAS | 40 | 6% |
| DALE CITY | 29 | 5% |
| ENGLESIDE | 27 | 4% |
| 11 other rate centers | 107 | 17% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| Omnipoint Communications Cap Operations | 100 | 16% |
| New Cingular Wireless PCS | 88 | 14% |
| Verizon Wireless | 74 | 12% |
| Onvoy | 61 | 10% |
| Mcimetro Access Transmission Services | 40 | 6% |
| Verizon Virginia | 32 | 5% |
| 32 other carriers | 232 | 37% |

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 703, named as the parent of 571 in the NANPA report, was in service.
- 2000-03-01: Area code 571 went into service.

## Nearest area codes

The area codes closest to 571, measured between the centers of the ZIP code places they serve, are 301 (about 33 miles), 240 (about 36 miles), 227 (about 38 miles), 443 (about 59 miles) and 410 (about 61 miles).

## ZIP codes

28 ZIP codes fall in places that have a rate center in this area code. The places with the most are Manassas, VA (6 ZIP codes), Dulles, VA (5 ZIP codes) and Herndon, VA (5 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

3,461 complaints for 2,614 numbers. Numbers whose latest complaint falls in each year:

- 2023: 142
- 2024: 526
- 2025: 226

## Questions

### Where is area code 571?

NANPA assigns area code 571 to Virginia, United States.

### In which state does area code 571 sit?

Virginia. 571 is one of 10 area codes the NANPA table assigns to the state.

### Which places does area code 571 cover?

The places with the most ZIP codes among the rate centers in 571 are Manassas, VA, Dulles, VA and Herndon, VA. The rate center list on this page shows all of them.

### Who owns area code 571?

NANPA assigns area codes. Within 571, Omnipoint Communications Cap Operations holds the most prefixes, 100 prefixes or 16%.

### Which time zone does 571 use?

The NANPA NPA report lists the time zone for 571 as Eastern (E).

### What year did 571 enter service?

The NANPA NPA report gives an in-service date of 2000-03-01, so 571 has been in use since 2000.

### Does area code 571 have an overlay?

Yes. 703 (in service 1947-01-01) shares the same area with 571, so numbers from all of them are local to each other.

### Which area codes are nearest to 571?

The area codes closest to 571, measured between the centers of the ZIP code places they serve, are 301 (about 33 miles), 240 (about 36 miles), 227 (about 38 miles), 443 (about 59 miles) and 410 (about 61 miles).

### How many prefixes does area code 571 have?

NANPA's report dated 2026-10-17 lists 627 prefixes in service in 571, spread over 19 rate centers and 38 holders.

### Are there complaints about 571 numbers?

The FCC data on file has 3,461 complaints for 2,614 numbers in 571. 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).