Popular coupon code websites in US

Here are some popular coupon code websites in the US:

1. _RetailMeNot_

2. _(link unavailable)_ 

3. _Groupon_ 

4. _Slickdeals_ 

5. _CouponCabin_ 

6. _TechBargains_ 

7. _DealsPlus_ 

8. _PromoCodeWatch_ 

9. _CouponFollow_ 

10. _Krazy Coupon Lady_ 

These websites offer coupon codes, discounts, and promo codes for various online retailers, including those that sell mobile phones, such as:

- Amazon

- Best Buy

- Verizon

- AT&T

- T-Mobile

- Sprint

- Apple

- Samsung

- Google

Remember to always check the expiration dates and terms of the coupons before using them.