Cell Phone Carriers that Recycle Mobile Phones
AT&T - With the AT&T Reuse & Recycle program, you can find a store location that allows you to drop off mobile phones, accessories and batteries or you can mail them in for free. You can print a postage-paid shipping label from the website or call and have one mailed to you. AT&T does not offer you any money or discount for recycling your phones with them, but it is free to use the service.
T-Mobile - The T-Mobile Handset Recycling program allows you to bring wireless phones to any of their retail locations. You may also print a postage-paid shipping label to mail in your device. T-Mobile offers the service for free, but does not offer any incentives or discounts for recycling your mobile phones.
Verizon Wireless - Verizon Wireless accepts old mobile phones through their HopeLine program. HopeLine recycles mobile phones that cannot be used again or refurbishes phones that are in good enough condition. Refurbished phones are then donated to various domestic violence agencies. Verizon Wireless provides the phones and 3,000 minutes of wireless service to be used by victims of domestic violence. To donate your old phone to the program you'll need to print a postage-paid mailing label from the website.
Sprint - Sprint Re:cycle program has a few different options for mobile device recycling. With Sprint Buyback program, new and existing Sprint customers are offered credit for eligible wireless devices. The eligible device can even be from other carriers. If your phone is not eligible for the buyback program, it can still be recycled with Sprint Project Connect. To recycle your mobile phone, batteries or accessories, simply stop by a local Sprint store to pick up a prepaid mailing envelope or print a postage-paid shipping label from their website. No credits are given if you use the Sprint Project Connect.