| Business | Phone |
| A T & T 3540 S Lawrence St, Philadelphia 19148 | (215) 468-6746 |
| A T & T Cits 270 S 9th St, Philadelphia 19107 | (215) 923-2922 |
| American Telephone 500 S 27th St, Philadelphia 19146 | (215) 875-4400 |
| Bell Telephone Co 26 W Chelten Ave, Philadelphia 19144 | (215) 849-0040 |
| Broadwing Communications 701 Market St, Philadelphia 19106 | (215) 701-8500 |
| Cynergy Group 3259 Longshore Ave, Philadelphia 19149 | (215) 708-7300 |
| Wireless One 7714 Castor Ave, Philadelphia 19152 | (215) 728-7243 |
| V-Linc Inc 401 N Broad St, Philadelphia 19108 | (215) 629-2420 |
| G D's National Score Phone 6610 Haverford Ave, Philadelphia 19151 | (215) 474-3500 |
| Globalone 401 N Broad St, Philadelphia 19108 | (215) 923-1201 |
| Instructional Telecomm Fndtn Philadelphia 19128 | (215) 483-9007 |
| My Digital Advantage 532 S 15th St, Philadelphia 19146 | (215) 670-0088 |
| North America Telecomms 5621 Lancaster Ave, Philadelphia 19131 | (215) 871-7674 |
| Pennsylvania Telephone Guild 1342 W Porter St, Philadelphia 19148 | (215) 271-3500 |
| Phone Tech 508 Dickinson St, Philadelphia 19147 | (215) 389-0834 |
| Qwest Communications 2400 Market St, Philadelphia 19103 | (215) 587-9088 |
| Shared Communications Svc 1800 John F Kennedy Blvd, Philadelphia 19103 | (215) 587-1500 |