Area code 430: Texas
Area code 430 is a US state area code for Texas, on Central Time. It has 281 prefixes in service across 158 rate centers, the largest being Longview, Texarkana and Tyler. It shares its area with 903, so local numbers there can start with any of them. Local calls there take 10 digits.
Local time in area code 430
America/Chicago
Prefixes in service
281 of 792 possible
158 rate centers
Area code 430 facts
| Location | Texas, United States |
|---|---|
| Time zone | Central Time |
| Overlays | 903 |
| Overlay of | 903 |
| In service since | February 15, 2003 |
| 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 430?
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 430 rate centers with the most prefixes in service. 146 smaller ones aren't listed.
| Rate center | Prefixes |
|---|---|
| Longview | 14 |
| Texarkana | 10 |
| Tyler | 9 |
| Greenville | 9 |
| Atlanta | 5 |
| Sherman | 4 |
| Marshall | 4 |
| Mount Pleasant | 4 |
| Paris | 4 |
| Lindale Swan | 4 |
| Corsicana | 4 |
| Henderson | 4 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 430 number?
NANPA's dialling plan for 430: 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 430 | 430-555-0147 |
|---|---|
| From another US or Canadian area code | 1-430-555-0147 |
| From outside North America | +1 430 555 0147 |
| E.164, for CRMs and SMS tools | +14305550147 |
When did area code 430 start?
Area code 430 went into service on February 15, 2003 as an overlay of 903. Today 430 and 903 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 430 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 430 number tells you where it was issued, not what it is now.
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Area code 430 questions
- What state is area code 430?
- Area code 430 is in Texas, United States. Its largest rate centers by number of prefixes are Longview, Texarkana, Tyler, Greenville and Atlanta.
- What time zone is area code 430 in?
- Central Time.
- What area codes overlay 430?
- 903. An overlay adds a new code to the same area instead of splitting it, so neighbours can have different area codes and local calls need 10 digits.
- When did area code 430 start?
- Area code 430 went into service on February 15, 2003 as an overlay of 903.
- Is a 430 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 430 have?
- 281 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
210214254281325346361409432469512621682713726737806817830832903915936940945956972979
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.