| Business | Phone |
| Carrier Services 1111 Brickyard Rd, Salt Lake City 84106 | (801) 467-9050 |
| Mci 175 S West Temple 130, Salt Lake City 84101 | (801) 736-1100 |
| A T & T 611 S Main St, Salt Lake City 84111 | (801) 364-2952 |
| Harmony Ip 370 E South Temple, Salt Lake City 84111 | (801) 924-5600 |
| Siemens Buiness Communication 215 Admiral Byrd Rd, Salt Lake City 84116 | (801) 524-2002 |