---
title: "Area code 830: Texas, United States"
url: "https://lookvalid.com/area-code/830.md"
canonical_url: "https://lookvalid.com/area-code/830"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 830 serves Texas, United States. Number formats, numbering rules, a live phone validator and the other codes in Texas."
---

# Area code 830: Texas, United States

Area code 830 serves Texas, United States. Number formats, numbering rules, a live phone validator and the other codes in Texas.

NANPA lists 492 central office codes (prefixes) in use in area code 830, held by 46 holders across 96 rate centers.
Southwestern Bell holds the most prefixes, 71 (14%). 82% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 1,571 complaints on file for 1,202 numbers in 830, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 1997-07-07
- Time zone: Central (C)
- Prefixes in use: 492
- Pooled prefixes: 402 (82%)
- Rate centers: 96
- Companies holding prefixes: 46
- Assignment dates on file: 2001-02-20 to 2025-08-28 (243 prefixes)
- ZIP codes in its places: 153

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| NEWBRANFLS | 41 | 8% |
| DEL RIO | 31 | 6% |
| SEGUIN | 24 | 5% |
| KERRVILLE | 22 | 4% |
| EAGLE PASS | 19 | 4% |
| BOERNE | 14 | 3% |
| FREDECKSBG | 14 | 3% |
| UVALDE | 14 | 3% |
| 88 other rate centers | 313 | 64% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| Southwestern Bell | 71 | 14% |
| New Cingular Wireless PCS | 58 | 12% |
| Frontier Comm Of Texas | 48 | 10% |
| Peerless Network Of Texas | 34 | 7% |
| Guadalupe Valley Tel. Coop. | 27 | 5% |
| Onvoy | 27 | 5% |
| 40 other carriers | 227 | 46% |

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

- 1992-11-01: Area code 210, named as the parent of 830 in the NANPA report, was in service.
- 1997-07-07: Area code 830 went into service.

## Nearest area codes

The area codes closest to 830, measured between the centers of the ZIP code places they serve, are 210 (about 12 miles), 726 (about 12 miles), 512 (about 86 miles), 737 (about 86 miles) and 361 (about 108 miles).

## ZIP codes

153 ZIP codes fall in places that have a rate center in this area code. The places with the most are San Antonio, TX (83 ZIP codes), Del Rio, TX (4 ZIP codes) and Boerne, TX (2 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

1,571 complaints for 1,202 numbers. Numbers whose latest complaint falls in each year:

- 2023: 71
- 2024: 59
- 2025: 64

## Questions

### Where is area code 830?

NANPA assigns area code 830 to Texas, United States.

### In which state does area code 830 sit?

Texas. 830 is one of 29 area codes the NANPA table assigns to the state.

### Which places does area code 830 cover?

The places with the most ZIP codes among the rate centers in 830 are San Antonio, TX, Del Rio, TX and Boerne, TX. The rate center list on this page shows all of them.

### Who owns area code 830?

NANPA assigns area codes. Within 830, Southwestern Bell holds the most prefixes, 71 prefixes or 14%.

### Which time zone does 830 use?

The NANPA NPA report lists the time zone for 830 as Central (C).

### What year did 830 enter service?

The NANPA NPA report gives an in-service date of 1997-07-07, so 830 has been in use since 1997.

### Does area code 830 have an overlay?

The NANPA NPA report lists no other area code in an overlay with 830.

### Which area codes are nearest to 830?

The area codes closest to 830, measured between the centers of the ZIP code places they serve, are 210 (about 12 miles), 726 (about 12 miles), 512 (about 86 miles), 737 (about 86 miles) and 361 (about 108 miles).

### How many prefixes does area code 830 have?

NANPA's report dated 2026-10-17 lists 492 prefixes in service in 830, spread over 96 rate centers and 46 holders.

### Are there complaints about 830 numbers?

The FCC data on file has 1,571 complaints for 1,202 numbers in 830. 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).