| Business | Phone |
| Level 3 Communications 8 Garamond Crt, North York M3C 1Z4 | (416) 510-8701 |
| Mactel Communications Inc 32 Kern Rd, North York M3B 1T1 | (416) 447-7100 |
| Mactel Communications Inc 85 Scarsdale Rd, North York M3B 2R2 | (416) 446-7350 |
| Rola Telecommunications 121 Combermere Dr, North York M3A 2W7 | (416) 391-2454 |
| Berman, B 1131 Steeles Ave W, North York M2R 3W8 | (416) 667-7113 |
| Storage Asp 515 Consumers Rd, North York M2J 4Z2 | (416) 750-4002 |
| Telephonix Tech 3235 Dufferin St, North York M6A 2T2 | (416) 780-0881 |
| Telsave Communications 92 Whitehorn Cres #100, North York M2J 3B2 | (416) 492-7527 |
| Communications Manufacturing 530 Gordon Baker Rd, North York M2H 3B4 | (416) 497-5757 |
| Complete Communication Svc Inc 255 Duncan Mill Rd, North York M3B 3H9 | (416) 385-1168 |
| Cross Connect Telecom 468 Mcnicoll Ave, North York M2H 2E1 | (416) 498-4700 |
| Fei Jie Telecommunication Co 6013 Yonge St, North York M2M 3W2 | (416) 221-9112 |
| Fox Wireless Communications 3250 Dufferin St, North York M6A 2T3 | (416) 398-9788 |