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Arcor was a German fixed-line telecommunications and Internet brand that became Vodafone Germany's integrated broadband and fixed-network business before being retired in 2009.

Last updated November 4, 2026

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Overview

Arcor is a German telecommunications service provider, founded in 1997, headquartered in Eschborn. The company offers internet access, telephone, and broadband services, and is one of the major telecom operators in Germany. It is now part of Vodafone Germany.

History

Arcor was established in 1996 as Mannesmann Arcor AG & Co. KG, a joint venture formed by Mannesmann, Deutsche Bank and DBKom, the telecommunications subsidiary of Deutsche Bahn. Its creation reflected the liberalization and restructuring of the German telecommunications market, where new operators sought to challenge Deutsche Telekom's long-standing dominance in fixed-line services. The company developed a business spanning fixed telephone connections and Internet access and became one of the most important alternative providers in Germany. The business was technically distinctive because it operated an ISDN network independent of Deutsche Telekom's network. This infrastructure allowed Arcor to offer fixed-line voice and data services under its own network arrangements rather than functioning only as a reseller of the incumbent's services. It also introduced flat-rate tariffs for ISDN lines, making it one of the first German providers to offer customers a predictable recurring price for extensive ISDN use. As Internet adoption increased, Arcor expanded its relevance through ADSL broadband access. Mannesmann's acquisition by Vodafone changed the ownership context of the company. Following Vodafone's takeover of Mannesmann, the business adopted the shorter Arcor AG & Co. KG name while continuing to operate as a major German fixed-line and Internet provider. Vodafone held the controlling interest, but Deutsche Bahn and Deutsche Bank remained minority shareholders. On 19 May 2008, Vodafone purchased those remaining interests, reported as 18.17% from Deutsche Bahn and 8.18% from Deutsche Bank. This gave Vodafone complete ownership and removed the minority-shareholder structure that had existed since Arcor's formation. By 2008, the associated Vodafone Germany fixed-line operation had approximately 2.1 million ADSL customers and 1.1 million ISDN customers. Arcor was regarded as the second-largest German fixed-line provider after Deutsche Telekom. Its scale made it an important component of Vodafone's effort to combine mobile, fixed-line, voice and broadband services in the German market. Arcor also maintained a visible consumer and public-facing presence. From 2002 through 2006, it sponsored Hertha BSC, a major football club in Berlin. In 2007, reports that the provider had blocked a limited number of adult websites led to a censorship controversy. The issue involved questions about whether Internet providers should restrict access to websites lacking adequate age-verification systems and whether private network operators should impose access controls in response to legal complaints. After Vodafone obtained full ownership, the Arcor name was retired from the fixed-line and Internet business on 1 August 2009. The operation was subsequently represented under Vodafone's German branding. Arcor is therefore a historical telecommunications brand rather than an active standalone company. Its principal legacy is as a major German challenger to Deutsche Telekom, an operator of independent ISDN infrastructure and an early participant in flat-rate fixed-line and broadband pricing.

  • 2011

    Former Arcor legal entity is deleted

    [2]

    Arcor AG & Co. KG was removed from the commercial register and no longer existed as an independent legal entity.

  • 2009

    Arcor is rebranded as Vodafone

    [5]

    On 1 August, the Arcor corporate identity and product brand were replaced by Vodafone as part of the integration of fixed-line and mobile operations.

  • 2008

    Vodafone becomes Arcor's sole owner

    [4]

    Vodafone bought the remaining shares held by Deutsche Bahn and Deutsche Bank and completed its takeover of Arcor.

  • 2007

    Internet access-blocking controversy

    [10]

    Arcor's temporary blocking of selected adult websites generated a public dispute over content controls, age verification and the responsibilities of Internet service providers.

  • 2006

    Expansion of next-generation network technology

    [2]

    Arcor increasingly migrated portions of its voice network toward next-generation network technology and ended its Hertha BSC shirt sponsorship.

  • 2005

    Launch of Arcor Sprache VoIP

    [2]

    Arcor entered the IP-telephony market and began adding voice services delivered over broadband networks.

  • 2002

    Arcor becomes a main sponsor of Hertha BSC

    [9]

    Arcor began a prominent sponsorship of Berlin football club Hertha BSC, increasing consumer visibility for the telecommunications brand.

  • 2000

    Vodafone takes control through the Mannesmann acquisition

    [8]

    Vodafone's acquisition of Mannesmann brought Arcor into the Vodafone group, after which the company operated under the Arcor AG & Co. KG name.

  • 1999

    Acquisition of o.tel.o's fixed-line business

    [2]

    Arcor acquired the fixed-line telecommunications business of o.tel.o communications, significantly expanding its network and customer position.

  • 1996

    DBKom enters a new Mannesmann and Deutsche Bank venture

    [2]

    Communications Network International acquired a 49 percent interest in DBKom, the former telecommunications arm of Deutsche Bahn, laying the corporate foundation for Arcor.

Products and positioning

A large German alternative fixed-line and Internet provider positioned against Deutsche Telekom, with emphasis on independent network infrastructure, ISDN services, broadband access, business connectivity and flat-rate pricing.

  • Fixed-line telecommunications · 1996

    Arcor Fixed-Line Telephony

    Arcor's core business was fixed-line voice service for households, businesses and institutional customers. The company used its own long-distance and regional network infrastructure while relying on access arrangements for portions of the local loop. Its principal competitive advantage was the ability to offer an alternative to Deutsche Telekom with separate pricing, bundled calling plans and a network that reached a large number of German exchanges.

  • Digital telephony

    Arcor ISDN

    ISDN was one of Arcor's best-known product areas. The company marketed digital telephone connections to consumers and business users and associated the brand with ISDN packages and flat-rate calling. ISDN supported multiple channels and supplementary digital services at a time when German households and small businesses were moving beyond conventional analog telephone lines.

  • Broadband Internet

    Arcor ADSL Internet

    Arcor's ADSL service provided fixed broadband Internet access and was commonly sold with telephone connections or flat-rate Internet packages. The product helped shift Arcor's identity from a long-distance telephone challenger to a broader residential communications provider competing in the rapidly expanding German broadband market.

  • Telecommunications tariffs

    Arcor Flat-Rate Tariffs

    Arcor marketed flat-rate packages covering combinations of fixed-line calling and Internet use. These offers were central to its consumer positioning because they simplified billing and emphasized predictable monthly costs. The packages were designed to differentiate Arcor from Deutsche Telekom and other providers during the period when broadband adoption and fixed-line price competition were accelerating.

  • Voice over IP · 2005

    Arcor Sprache VoIP

    Arcor Sprache VoIP was Arcor's IP-telephony service, introduced in 2005 and initially integrated with the company's Personal Internet Assistant environment. The service reflected the industry's transition from circuit-switched voice to broadband-based communications. From the end of 2006, Arcor increasingly used next-generation network technology for voice delivery in selected access arrangements.

  • Online services

    Arcor.de Portal and E-mail

    The arcor.de portal supported consumer Internet services including e-mail and, for a period, personal web space and hosting. Arcor's online activities developed through the company's involvement with germany.net and related services. Although the telecommunications brand was retired in 2009, some legacy portal and e-mail functions continued beyond the brand transition.

  • Enterprise telecommunications · 1996

    Arcor Business Network Services

    Arcor provided business customers with leased lines, data connectivity, fixed-network services and other communications infrastructure. These offerings used the company's national network and complemented its household telephone and broadband products. Business telecommunications remained part of Arcor's portfolio from its early corporate formation through its integration into Vodafone.

Controversies

  • 2007

    Blocking of selected adult websites

    Arcor temporarily blocked access to a small number of adult websites after concerns were raised about their age-verification practices. The decision became a public controversy because it placed an Internet access provider in the role of restricting access to content and prompted debate about legal standards, private enforcement and network neutrality.

Read more

Marketing campaigns

  • 2006Hertha BSC loyalty campaign

    Germany

    When Arcor continued its relationship with Hertha BSC for the 2006-07 season as an exclusive partner, the partnership included a loyalty campaign aimed at Hertha supporters.

    Outcome. The sponsorship did not continue as Hertha's primary shirt partnership after the 2005-06 season.

  • 2002Hertha BSC main sponsorship

    Germany

    Arcor became a prominent sponsor of Berlin football club Hertha BSC, using shirt sponsorship and club association to build consumer recognition in the German market.

    Outcome. The partnership continued through the 2005-06 season and ended when Deutsche Bahn became Hertha's main sponsor in 2006.

Brand decisions

  • 2009

    Retire the Arcor brand and integrate fixed-line products into VodafoneStrategy

    Background

    Vodafone wanted to present mobile, fixed-line, Internet and television services under one German consumer identity rather than maintain separate Vodafone and Arcor brands.

    Action taken

    On 1 August 2009, Arcor AG & Co. KG was renamed Vodafone AG & Co. KG and Arcor products were transferred into Vodafone's product portfolio.

    Aftermath

    Arcor ceased to exist as an independent telecommunications brand. Vodafone AG & Co. KG later merged with Vodafone D2 GmbH in December 2009.

  • 2008

    Vodafone buys the minority interests in ArcorM&A

    Background

    Vodafone had controlled Arcor through its ownership of Mannesmann but Deutsche Bahn and Deutsche Bank still held minority stakes.

    Action taken

    Vodafone acquired Deutsche Bahn's 18.17 percent holding and Deutsche Bank's 8.18 percent holding, becoming Arcor's sole shareholder.

    Aftermath

    The transaction enabled Vodafone to combine its mobile business and Arcor's fixed-line operations under a single German strategy and management structure.

    Purchase price for minority interests. EUR 474 million (May 2008)

  • 2006

    Migrate selected voice services to next-generation networksGeneration change

    Background

    The economics of broadband delivery encouraged Arcor to reduce dependence on traditional circuit-switched voice technology.

    Action taken

    Arcor began moving parts of its conventional voice service toward NGN infrastructure, initially focusing on broadband customers and access arrangements where direct local-loop access was unavailable.

    Aftermath

    By late 2008, Arcor was offering customers a choice between conventional ISDN and NGN-based access in relevant products.

  • 2005

    Introduce Arcor Sprache VoIPProduct launch

    Background

    Broadband access was enabling fixed-line providers to move voice traffic from traditional circuit-switched systems to IP networks.

    Action taken

    Arcor introduced a Voice over IP product and initially integrated it into its Personal Internet Assistant environment.

    Aftermath

    IP telephony became increasingly important in Arcor's access strategy and supported the later migration toward next-generation network architecture.

  • 1999

    Acquire o.tel.o's fixed-line businessM&A

    Background

    Germany's newly liberalized fixed-line market was consolidating as alternative operators sought scale, customers and network assets.

    Action taken

    Arcor acquired the fixed-line telecommunications business of o.tel.o communications.

    Aftermath

    The acquisition strengthened Arcor's position as the leading alternative fixed-line competitor to Deutsche Telekom and broadened its network and customer base.

Sources11 sources

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