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Private company

Verizon Delaware

Logo: Verizon Communications, Turner Duckworth, Public domain, via Wikimedia Commons3

Delaware subsidiary of Verizon

Verizon Delaware LLC, formerly The Diamond State Telephone Company, is the Bell Operating Company of Delaware, and small parts of southeastern Pennsylvania. Founded in 1897, it became a part of the Bell System in 1905.2 It is headquartered in Philadelphia.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1897Founded1

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Verizon Delaware LLC, formerly The Diamond State Telephone Company, is the Bell Operating Company of Delaware, and small parts of southeastern Pennsylvania. Founded in 1897, it became a part of the Bell System in 1905.2

Corporate structure

Verizon Delaware is part of a group headed by Verizon. 77 entities, 12 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Verizon New York, New York, United States
    • Verizon Delaware Philadelphia
    • Adtech Subsidiary · Frankfurt am Main
    • Advertising.com Subsidiary · Baltimore
    • AOL Subsidiary · New York, New York, United States
    • Fleetmatics Subsidiary · Dublin
    • go90 Subsidiary
    • MCI Inc. Subsidiary · Ashburn
    • Moviefone Subsidiary
    • Netscape Subsidiary · Mountain View
    • Verizon Business Subsidiary · Basking Ridge
    • Verizon Hearst Media Partners Subsidiary · New York City
    • Verizon Ventures Subsidiary
    • Yahoo Subsidiary · 10% · United States
    • BAMS Communications LLC Subsidiary · Delaware, United States
    • Bell Atlantic - Pennsylvania Subsidiary · United States
    • Bell Atlantic Mobile Systems LLC Subsidiary · Delaware, United States
    • Bell Telephone Company of Pennsylvania Subsidiary · United States
    • Cellco Partnership (d/b/a Verizon Wireless) Subsidiary · Delaware, United States
    • GTE Wireless LLC Subsidiary · Delaware, United States
    • MCI Communications Services LLC Subsidiary · Delaware, United States
    • MCI International LLC Subsidiary · Delaware, United States
    • OATH (NETHERLANDS) B.V. Subsidiary · Amsterdam, Netherlands
      • OATH (EMEA) LIMITED Subsidiary · Dubiln, Ireland
    • TechCrunch Subsidiary
    • Verizon Americas LLC Subsidiary · Delaware, United States
    • VERIZON BUSINESS DPPA MASTER TRUST Subsidiary · Basking Ridge, New Jersey, United States
    • and 28 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

Products and brands

  • telephone

Listed on Wikidata.1

Timeline

  1. 1897Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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