Skip to main content
Surge supports three number types. Local and toll-free numbers are available via API. Short codes require a support request.

Prerequisites

  • Active account and API key: Both are required to call any phone number endpoint.
  • Plan that allows the number count you want: Hobby is capped at 1, Starter at 25, Growth and Custom are unlimited.
  • A campaign to attach to (eventually): Numbers can be purchased before a campaign is active, but they can’t send production traffic until they’re attached. See Attaching to a Campaign.

Number types

The dashboard at hq.surge.app walks you through the same purchase via UI, useful for one-off numbers or for confirming pricing and approval timelines: Dashboard "Select number type" page comparing toll-free vs local with prices, setup fees, and registration approval times After choosing the type, the dashboard shows currently-available numbers with city/state for local numbers: Dashboard local-number search results with phone numbers and city/state

Purchase a local number

Pass type: "local" and an area_code to find an available number in that area:
If no numbers are available for the area code you specified, the API returns a no_matching_numbers error. Try a nearby area code or omit the area_code to get any available number. If your account has reached its phone number limit, the API returns a phone_number_limit error. Limits by plan:
Contact support to upgrade your plan if you need more numbers.

Purchase a toll-free number

Toll-free numbers need to go through verification before they can send production traffic. See Toll-Free Verification.

List existing numbers

Retrieve all phone numbers on an account:

Attaching to a campaign

A freshly purchased number has campaign_id: null. Surge attaches phone numbers to campaigns automatically. You don’t call a separate endpoint. Two things trigger attachment:
  • Purchase while a campaign is active: Surge attaches the number immediately.
  • Campaign becomes active after purchase: Surge attaches all existing unattached numbers on the account when the campaign is approved.
When attachment completes, Surge fires a phone_number.attached_to_campaign webhook event. Once you receive that event, the number can send production traffic. See Attaching to a Campaign.

Short codes

Short codes (5-6 digit numbers like 12345) are available to all customers via a support request. They support very high message volumes and are the standard for large-scale marketing programs. Contact Surge support to start a short code request.