• MOBILE
  • LANDLINE
  • VOIP
  • HUMAN

How to identify phone line types with your AI

Connect NumVerify to your agent to instantly classify phone numbers. Once connected, your AI handles the lookup and tells you exactly what kind of line you're dealing with.

Ask AI about this page

Short answer

How can my AI tell if a number is mobile or landline?

Your AI uses the get_phone_line_type tool to check the specific line type for any number you provide. This allows you to separate VoIP, mobile, and landline numbers for better routing. You'll see the breakdown of how this works below.

Routing outcomes

Where your data goes.

The AI sorts your numbers based on the line type it finds.

MOBILE

SMS-ready numbers

The AI identifies mobile lines so you can send text messages without worrying about landline errors.

LANDLINE

Voice-only lines

The AI flags landlines to prevent you from attempting to send SMS to numbers that can't receive them.

VOIP

Virtual number routing

The AI detects VoIP lines, helping you decide if these numbers are suitable for your specific calling needs.

HUMAN

Manual review needed

If the lookup fails or returns an unknown type, the AI flags the number for you to check manually.

The workflow

What your AI does when a number is provided.

The AI acts as a filter between your raw data and your communication tools.

  1. Receive number

    Your agent takes a phone number from your chat, a spreadsheet, or a contact list.

    get_phone_line_type

  2. Run lookup

    The AI calls the NumVerify tool to pull the specific line type for that number.

    get_phone_line_type

  3. Classify type

    The AI interprets the result to determine if it's a mobile, landline, or VoIP number.

    get_phone_line_type

  4. Route data

    The AI organizes the results so you can decide which numbers get a text and which get a call.

    get_phone_line_type

Try it

Copy these to start.

Use these prompts to kick off the process.

Starting points

Replace the bracketed text with your actual data sources like a CSV file or a specific contact name.

NumVerify Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_qJUzd0bUEJU7XQ6Mvmtl5EisPV9shJJWOFH8UTtG/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — NumVerify capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "numverify-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_qJUzd0bUEJU7XQ6Mvmtl5EisPV9shJJWOFH8UTtG/mcp"
    }
  }
}
Copy into chat04

  • Check the line type for the numbers in my contacts sheet.

  • Look up these phone numbers from my CSV and tell me which ones are mobile.

  • Go through my customer list and flag any VoIP numbers.

  • Can you tell me if the number in this contact record is a landline?

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect NumVerify once, then ask.

You only need to link the MCP once. Your credentials stay encrypted, and you can immediately start asking your agent to check numbers.

Connect NumVerify to your AI

FAQ

How this task behaves.

  • 01

    Can the AI change the phone number?

    No. The AI only reads the line type; it cannot edit or modify your contact data.

  • 02

    Will the AI delete any of my contacts?

    No. This tool is read-only. It fetches information without touching your existing records.

  • 03

    Can it tell me the owner's name?

    No. The get_phone_line_type tool only identifies the type of line, not the person's identity.

  • 04

    What happens if a number is invalid?

    The AI will report that the number could not be identified as a valid mobile, landline, or VoIP line.

  • 05

    Does it work with any phone number?

    It works with any number that the NumVerify service can successfully query.

  • More questions about NumVerify? The Connector page answers them. See everything the NumVerify Connector can do

Connect NumVerify to Claude, Cursor, ChatGPT & more