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  • NYMCARD DOCUMENTATION
  • Get Started
    • nCore API Quick Tutorial
    • API Core Principles
    • Program management
      • Manage documents by APIs
      • User KYB process
      • Necessary parameters per user type
      • User ID verification by SDK
      • User KYC process
    • Issuance
      • Users
      • Cards
    • Issuing Physical Cards
      • Individual card issuance
      • Bulk card issuance
      • Card fulfillment
      • Card PIN management
      • Card replacement
      • Proxy number usage
    • Issuing Virtual Cards
      • Migration of virtual to physical card
    • Funding and transfers
      • Funding
      • Internal funding source
      • External funding source
        • From card
        • From bank account
        • Lean API flow
        • DAPI direct API flow
      • Transfers
      • Western Union APIs
      • Checkout widget
    • Product Management
      • Card product
      • Balance limits
      • Velocity limits
      • Fees
      • Charges
      • Multi-currency
      • Authorization controls
        • Enhancements for MCC list management
    • Transactions
      • Payment ecosystem
      • Transaction lifecycle
      • Transaction types
      • Transaction endpoints scenarios
      • Multi-clearing process
    • Webhooks
      • Introduction to webhooks
      • nCore webhook events
      • Steps to configure a webhook
      • Webhooks samples
      • Webhook changes for simulation
      • Webhooks management
    • Security
      • PCI widget
      • 3D Secure
      • OTP SMS templates
    • Release announcements
      • Embedded Lending Release Notes
      • Changes in the release on 13/07/2023
      • Changes in the release on 23/05/2023
      • Changes in the release on 04/04/2023
  • For developers
    • nCore API catalog
    • nFront API catalog
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  1. Get Started
  2. Issuing Physical Cards

Proxy number usage

You can use a proxy number instead of card ID in many cases.

A proxy number can be printed on the card envelope as a nonsensitive unique identifier of the card and can be used to activate the plastic card once received from the cardholder instead of PAN, CVV and expiration date. There are two reasons why not to use the card ID for card activation:

  • it is too long (32 characters)

  • it has a very specific format that may not fit with customer requirements.

The power of the Proxy number is the flexibility that NymCard offers to the customer to define the length and the format. For example, one client asked for 9 digits proxy number that does not start with 0. We are open to any other format as well.

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Last updated 10 months ago

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