Cell phone showing a call being received using Dialpad's mobile app
Establish a local presence in San Diego

Area code 858

Want to get a local business presence in San Diego, CA? With Dialpad, you can get a business phone number with the 858 area code in just a few minutes. Try Dialpad for free to get set up with a local state of California number!

Local phone numbers for area code 858: Perfect for sales and customer teams

Need a local phone number for California area codes? What if we told you that you can get a local number included with your cloud phone system?

How it works

All of Dialpad’s paid plans come with a local number included, in this case a phone number with your local 858 area code, and start at only $15/user/month—which includes unlimited calling in the US and Canada!

And that’s not all. You’re also getting an AI-powered collaboration platform that lets you make phone calls, have video meetings, send SMS/MMS and team messages, and more—all from one beautifully designed desktop or mobile app:

Screenshot showing a team messaging thread in Dialpad's desktop app

Ready to establish a presence in major cities like Los Angeles and San Diego?

Let’s first look at why you might need an 858 area code.

Where is area code 858?

Area code 858 is in the Pacific time zone, serving San Diego and surrounding areas. The prefix was launched by the California Public Utilities Commission (CPUC) as an overlay for the 619 area code and covers some of the same geographic area.

Area codes are managed by the North American Numbering Plan Administration (NANPA). If you look at an area code map, the area code 858 location extends north from the San Diego beach communities into La Jolla, Del Mar, and Solana Beach, and inland to Rancho Santa Fe, Rancho Bernardo, and Poway. North County doesn’t share this area code, using 619 instead.

As well as the city of San Diego, area code 858 cities include Chula Vista, El Cajon, Lemon Grove, National City, Santee, and La Mesa. Check out an area code 858 map here.

All your essential communications features, included with every Dialpad local business number

Screenshot of a phone call happening in Dialpad's desktop app

A truly unified platform

Dialpad gives you all the communications channels you need in one robust app, including phone calls, video conferencing, SMS/instant messaging, and even fully integrated contact center AI if you need it.

Screenshot of a video call happening in Dialpad's iOS and Android mobile apps

Plays nice with any device

Use Dialpad’s desktop and mobile app across iOS, Android, PC, and Mac—or just use your web browser to join a call or video meeting, no downloads needed.

Screenshot of adding a call forwarding number from Dialpad’s online dashboard

Easy call forwarding

Never miss a call again. Dialpad’s call forwarding feature lets you choose up to five external numbers, so you can have calls automatically forwarded to your cell phone or landline, a colleague, or another department.

Screenshot of Dialpad's call routing options

Flexible call routing

Smart call routing gets your callers to the right department or person—without you having to lift a finger. With Dialpad, you can easily route calls to agents, voicemail, or a department—and also make changes to your IVR, right from your online dashboard.

Screenshot of choosing a caller ID to display when making a work call from one's personal cell phone using Dialpad's app.

Shield your personal number

With Dialpad, you can make work calls from your personal cell phone—while showing your 858 area code work number and protecting your privacy.

Screenshot of Dialpad Ai transcribing a phone call in real time

Real-time call transcription

Dialpad’s built-in AI is built by our own team and integrated directly into the communications platform to provide voice transcriptions for calls and video meetings—in real-time. This way, you don't have to be distracted with note-taking and can give them your full attention (and Dialpad even detects highlights and action items).

Screenshot of Dialpad Ai transcribing a voicemail message in real time

Voicemail transcriptions

When you're in back-to-back meetings all day, you can't always listen to every voicemail. Dialpad's visual voicemail feature transcribes your voicemails into text, so you can quickly read them when it isn't convenient to listen to them. (It even emails the audio and text versions to you!)

Get more than an 858 area code number

Try all these features out in Dialpad's AI-powered collaboration platform! Sign up for a 14-day free trial to take it for a test drive. It takes just a few minutes, and you'll be set up with an 858 number too. Or, take a self-guided interactive tour of Dialpad to play with the app on your own first!

Why your business needs a San Diego area code

If you want to target San Diego, it makes sense to get a local number for that area code—even if your business isn’t located there.

Whether they’re in Coronado or Imperial Beach, San Diego County residents can dial you without worrying about long-distance charges. Plus, customers and prospects are more likely to answer local calls.

Local numbers add credibility, especially when associated with a cultural and economic hub like area code San Diego. It helps that the area has two companies on the Fortune 500 list- telecom equipment firm Qualcomm and Sempra Energy-and is home to the NPA.

San Diego is known for its healthcare, scientific, tech, and defense industries. The area has an average household income higher than the US average­, making it a particularly good place to establish your brand.

Even better, the 858 area code for San Diego has enough capacity to last another 30 years or more.

Get your 858 area code business phone number in 4 easy steps

It’s super-easy to look up area codes and add a local number in Dialpad. When you sign up for a free 14-day trial, which takes just a few minutes, you’ll also be set up with a phone number with your area code of choice—in this case, a 858 area code.

Or, if you’re already with Dialpad, area code lookup and local number activation are also really easy. To add another VoIP number, just:

Step 1. Navigate to Settings

Step 2. Choose “Add a Number”

Step 3. Check your local licenses and add a business phone line

Step 4. Confirm the new phone number or select it from the Change menu.

That’s it!

Get a communications platform along with your 858 area code number




$20 USD if billed monthly

1 License Minimum

  • Unlimited calling2
  • Call controls (call forwarding, transfer, hold, mute)
  • Custom voicemail greeting
  • Voicemail transcription
  • G Suite & Office 365 integrations
  • Fax (add-on)1
  • Custom off-hours routing


Contact us

100 License Minimum

All Pro plan features, plus:

  • 100% uptime Service Level Agreements (SLA)
  • Extensions
  • Unlimited office locations
  • Enhanced 24/7 Phone Support
  • Unlimited ring groups (departments)
  • Azure Integration
  • IAM/SSO Integrations (Okta, OneLogin)
  • Retention policies