830 Area Code: Texas Hill Country and the San Antonio Ring

New Braunfels, Kerrville, Del Rio, and Eagle Pass all share the 830 area code, ringing San Antonio without covering the city itself and stretching across the Texas Hill Country all the way to the Mexico border. It split from 210 on July 7, 1997 — and has covered one of Texas's largest footprints, geographically, ever since.

This guide covers 830's counties and cities, how it fits into Texas's broader area-code family tree, what's driving its tourism-and-border economy, and how to dial correctly.

Counties and cities at a glance

830 covers 29 counties and more than 150 towns across the Texas Hill Country and the ring of suburbs surrounding — but not including — San Antonio, which stays in 210. Anchor cities include New Braunfels, Kerrville, Fredericksburg, Seguin, Del Rio, and Eagle Pass.

Two splits back: how 830 fits Texas's area-code family tree

830 is two generations removed from where south-central Texas started: 512 originally covered the whole region, then split off 210 in 1992, and just five years later, 210 split again to create 830 on July 7, 1997. Unlike some of its Texas relatives, 830 has never needed a split or overlay of its own since.

An economy built on tourism, ranching, and the border

830's economy spans a genuinely wide range of activity:

Hill Country tourism New Braunfels draws crowds for river tubing and Schlitterbahn, while Fredericksburg and the surrounding wine country pull in visitors year-round.

Ranching and agriculture Much of the rural stretch across 830's 29 counties still runs on cattle ranching and farming, a steady economic base outside the tourist towns.

Border trade Eagle Pass and Del Rio anchor cross-border commerce with Mexico, adding an international trade dimension few other Texas area codes share.

Many of these Hill Country and border businesses are moving onto UCaaS (Unified Communications as a Service) — a single cloud platform for calling, video, and messaging that scales across a sprawling, mostly rural territory, the same kind of wide-footprint challenge covered in 906 in Michigan's Upper Peninsula. Contact us to set up an 830 number for your Texas business.

Choosing between 830 and 210

Because 830 wraps around San Antonio without including it, businesses right on the edge of the metro sometimes aren't sure which code applies to them. The simple rule: if the address is inside San Antonio proper, it's 210 (or its overlay, 726); if it's in one of the surrounding suburbs or out into the Hill Country — New Braunfels, Seguin, Boerne, Kerrville — it's 830. A company with locations on both sides of that line will typically end up with numbers in both codes rather than one covering everything.

Time zone & how to dial an 830 number

South-central Texas runs on Central Time (CT) — CST (UTC−6) in winter, CDT (UTC−5) during Daylight Saving Time. Dial 1, then the area code, then the seven-digit number for every call. Wikipedia's entry on area code 830 documents the full 512-to-210-to-830 split lineage and the complete list of counties covered.

Key takeaways

• 830 rings San Antonio (which stays in 210) and covers 29 counties across the Texas Hill Country to the Mexico border.
• It split from 210 on July 7, 1997, which itself had split from 512 five years earlier.
• 830 has never needed a split or overlay of its own since.
• Anchors include Hill Country tourism, ranching, and border trade at Eagle Pass and Del Rio.
• Time zone: Central (CT).

Frequently asked questions