Area code 415

Get a local California phone number

Looking to expand into California? Start by getting a local phone number in the 415 area code from Sideline. The Sideline app conveniently adds a second number to your phone, and our patented technology provides reliable, carrier-level call quality and texting.

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415 area code
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Why choose Sideline for your 415 phone number?

Establish a local presence quickly and easily

There’s no need for a second phone when you’ve got Sideline. Just download the app to add a second number to the phone you already have, and connect with the local community.

Keep your communication separate and organized

Sideline helps you keep work separate from your personal life with a dedicated second number, a custom voicemail, personalized ringtones, and a Sideline-specific contacts list.

Identify callers and reduce spam

You’ll always know who’s calling with Sideline’s advanced Caller ID, and Spam Filtering automatically detects spam calls and sends them straight to voicemail for your review.

Access your second number from any device

Whether you’re on the go or working from home, your Sideline number is always there for you. Use the mobile app on your phone and tablet, or access Sideline on the web.

How do I get a 415 phone number with Sideline?

  1. Choose a local number
  2. Select a monthly or yearly plan*
  3. Start sharing your new phone number!

Sideline is more than just a second number

Superior Call Quality
Superior Call Quality

Sideline uses your carrier’s network for top-tier call quality.

No WiFi Needed
No WiFi Needed

Unlike VoIP services, Sideline gives you the freedom to leave your WiFi network.

Avoid Spam
Avoid Spam

We detect spam calls, telemarketers, and potential fraud so you can easily avoid them.

Auto-Reply
Auto-Reply

Send an automated text reply to any missed calls or messages.

Voicemail
Separate Voicemail

Record your Sideline greeting so people can leave a message after the beep.

Unlimited Messaging
Unlimited Messaging

Send unlimited SMS, MMS, and group messages.

Number Porting
Number Porting

Already have a second number? Bring it to Sideline from another device or landline.

Ring and Text Tones
Ring & Text Tones

Differentiate between numbers with unique ring and text tones.

*Plans start at $14.49/mo

About the 415 Area Code

Where the 415 area code covers

Area code 415 serves San Francisco (city and county), much of Marin County, and a small part of northern San Mateo County. Major communities in this area include San Francisco, San Rafael, Novato, Mill Valley, Sausalito, Larkspur, Tiburon, Corte Madera, Fairfax, Ross, Brisbane, and Daly City.

Overlays for the 415 area code

The 628 overlay took effect on March 21, 2015, bringing the same geographic coverage as 415. Because of this overlay, all local calls within the 415/628 region require 10-digit dialing (area code and phone number).

Time zone for the 415 area code

The 415/628 area follows Pacific Time (PST / PDT), just like the rest of California.

Interesting facts about the 415 area code in California

  • The Golden Gate Bridge opened in 1937 and remains one of the most photographed bridges in the world.
  • San Francisco's cable cars became a National Historic Landmark in 1964.
  • Alcatraz Island was a federal prison from 1934 to 1963 and now draws many visitors as part of Alcatraz Island National Park.
  • BART (Bay Area Rapid Transit) began operation in 1972, linking San Francisco to surrounding counties.
  • California joined the U.S. in 1850 (as the 31st state), during the era of the Gold Rush.
  • The Bay Area is home to world-renowned institutions like UCSF (San Francisco) and UC Berkeley (across the Bay).
  • San Francisco's Financial District is a major hub for banking, fintech, and venture capital on the West Coast.
  • The region features a Mediterranean climate, with cool, foggy summers heavily influenced by the Pacific Ocean.

FAQs about the 415 area code

Is area code 415 toll-free?
No, it's a standard geographic area code. Toll-free codes in the U.S. are 800, 833, 844, 855, 866, 877, and 888.
What time zone does area code 415 use?
Area code 415 uses Pacific Time (PST in winter, PDT in summer) - `the same as the rest of California.
Do I have to dial the area code for local calls in 415?
Yes. Due to the 415/628 overlay, 10-digit dialing is required for all local calls in the region.
Which states and cities use the 415 area code?
California. Specifically, San Francisco, San Rafael, Novato, Mill Valley, Sausalito, Larkspur, Tiburon, Corte Madera, Fairfax, Ross, Brisbane, Daly City, and nearby communities in Marin and northern San Mateo counties.
Can I keep my 415 number if I move or switch to a service like Sideline?
In most cases, yes, you can keep or "port" your 415 number when moving or switching to a service like Sideline - just check with your provider first to make sure number portability is available.

Get started with Sideline today

Available on iOS and Android.

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