| Business | Phone |
| Civilization Communication Inc 124 Lawrence St, Uniondale 11553 | (516) 481-8580 |
| Clark Communications 1 Eab Plz, Uniondale 11556 | (516) 522-2701 |
| Nuera Communications Inc 1 Eab Plz, Uniondale 11556 | (516) 522-2616 |
| Teleport Communications Group 50 Charles Lindbergh Blvd, Uniondale 11553 | (516) 247-5700 |