The AT&T 5G Non-Activated Post & Prepaid Nano SIM Card. Blue color. Model: (6531C)

Features:

• Dual-Service Compatibility: Works seamlessly with both AT&T Prepaid (formerly GoPhone) and Postpaid (contract) wireless plans.
• 5G & 4G LTE Ready: Engineered to maximize the speeds of 5G-capable devices while maintaining full backward compatibility with 4G LTE, 3G, and GSM networks.
• Nano SIM (4FF) Format: Specifically the Nano size (the smallest physical SIM standard), making it compatible with all modern flagship devices including newer iPhones and Samsung Galaxy models.