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! colspan="2" | {{Tnavbar-collapsible|]|Bell System}} | ||
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| ! style="font-size: 110%; background: #DEDDE2; text-align: center;" colspan="2" | Corporate Operations | ! style="font-size: 110%; background: #DEDDE2; text-align: center;" colspan="2" | Corporate Operations | ||
Revision as of 00:39, 15 April 2008
| Bell System | |
|---|---|
| Corporate Operations | |
| Holding Company: | American Telephone & Telegraph |
| Local Telephone Operations | |
| Bell Operating Companies: | Bell Telephone Company of Nevada · The Bell Telephone Company of Pennsylvania · The Chesapeake & Potomac Telephone Company · The Chesapeake & Potomac Telephone Company of Maryland · The Chesapeake & Potomac Telephone Company of West Virginia · The Chesapeake & Potomac Telephone Company of Virginia · Diamond State Telephone · Illinois Bell · Indiana Bell · Michigan Bell · Mountain Bell · New England Telephone & Telegraph · New Jersey Bell · New York Telephone · Northwestern Bell · Ohio Bell · Pacific Northwest Bell · Pacific Telephone · South Central Bell · Southern Bell · Southwestern Bell · Wisconsin Telephone |
| Franchisees: | Southern New England Telephone · Cincinnati Bell |
| Other AT&T Subsidiaries | |
| Manufacturing: | Western Electric |
| R&D Operations: | Bell Labs |
| Long Distance Services: | AT&T Long Lines |
| Wireless Services: | Advanced Mobile Phone Service |