Area code 830: Texas
Area code 830 is a US state area code for Texas, on Central Time. It has 492 prefixes in service across 96 rate centers, the largest being New Braunfels, Del Rio and Seguin. NANPA lists no overlay code for it. Local calls there take 10 digits.
Local time in area code 830
America/Chicago
Prefixes in service
492 of 792 possible
96 rate centers
Area code 830 facts
| Location | Texas, United States |
|---|---|
| Time zone | Central Time |
| Overlays | None |
| Split from | 210 |
| In service since | July 7, 1997 |
| Local calls | 10 digits; toll calls 1 + 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
Which cities and towns use area code 830?
NANPA records each prefix against a rate center, the local billing area a number belongs to, usually named after its main town. These are the 830 rate centers with the most prefixes in service. 84 smaller ones aren't listed.
| Rate center | Prefixes |
|---|---|
| New Braunfels | 41 |
| Del Rio | 31 |
| Seguin | 24 |
| Kerrville | 22 |
| Eagle Pass | 19 |
| Fredericksburg | 14 |
| Boerne | 14 |
| Uvalde | 14 |
| Marble Falls | 12 |
| Pleasanton | 11 |
| Floresville | 10 |
| Gonzales | 9 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 830 number?
NANPA's dialling plan for 830: local calls inside the code take 10 digits, toll calls 1 + 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 830 | 830-555-0147 |
|---|---|
| From another US or Canadian area code | 1-830-555-0147 |
| From outside North America | +1 830 555 0147 |
| E.164, for CRMs and SMS tools | +18305550147 |
When did area code 830 start?
Area code 830 went into service on July 7, 1997, split from 210. It has no overlay, so every number in its area still starts with it.
Tools for 830 numbers
- Area code lookup
Look up any code or a whole list of numbers, or find the codes for a state or city.
- Area code time zone
Local time for a list of numbers, with a callable-now flag.
- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 830 number tells you where it was issued, not what it is now.
Mobiles, landlines and VoIP lines share area codes, and numbers move between carriers. A live line-type and carrier lookup on every number in your list says which is which, and that decides which calling and texting rules apply. It's in the Email + Phone plan.
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Area code 830 questions
- What state is area code 830?
- Area code 830 is in Texas, United States. Its largest rate centers by number of prefixes are New Braunfels, Del Rio, Seguin, Kerrville and Eagle Pass.
- What time zone is area code 830 in?
- Central Time.
- Does area code 830 have an overlay?
- Not as of NANPA's file dated 10/16/2026. Every number in its area uses 830.
- When did area code 830 start?
- Area code 830 went into service on July 7, 1997, split from 210.
- Is an 830 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 830 have?
- 492 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
Other area codes in Texas
210214254281325346361409430432469512621682713726737806817832903915936940945956972979
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and rate centers: NANPA central office code assignments, 10/17/2026. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.