| Business | Phone |
| Aaa Wireless 3201 Middle Country Rd, Lake Grove 11755 | (631) 738-1292 |
| Cellular Plus 2700 Middle Country Rd, Lake Grove 11755 | (631) 737-5354 |
| Cellular World 313 Smith Haven Mall, Lake Grove 11755 | (631) 366-4488 |
| Cingular Wireless 313 Smith Haven Mall, Lake Grove 11755 | (631) 979-1827 |
| Cingular Wireless 3207 Middle Country Rd, Lake Grove 11755 | (631) 588-2600 |
| Nextel Retail 313 Smith Haven Mall # G5, Lake Grove 11755 | (631) 361-5400 |
| Executive Cellular Phones 313 Smith Haven Mall, Lake Grove 11755 | (631) 863-3860 |
| Universal Network Inc 313 Smith Haven Mall, Lake Grove 11755 | (631) 265-1037 |
| Verizon Wireless 1 Smith Haven Mall, Lake Grove 11755 | (631) 382-3720 |