Question: Where is the company based that sold Vodafone it's New Zealand operations?

full_context: Document 1: Brasil Telecom: Brasil Telecom S.A. (BrT, ] ) was a major Brazilian telecommunications company headquartered in the Brazilian capital Brasilia. The company is one of three land lines, one long distance and eight mobile telephone companies in Brazil that emerged from the break-up of Telebrás. Originally the company was called Tele Centro Sul, because its service covered the states in the central and southern parts of Brasil, namely Acre, Rondônia, Goiás, Tocantins, Mato Grosso, Mato Grosso do Sul, Paraná, Santa Catarina and Rio Grande do Sul, as well as the Distrito Federal. Since January 9, 2009, the company is a subsidiary of Oi.
Document 2: Vodafone New Zealand: Vodafone New Zealand is a telecommunications company operating in New Zealand; it is a subsidiary of the London-listed company Vodafone Plc. It is New Zealand's largest mobile phone operator, based in Auckland, and was formed in 1998, after Vodafone purchased BellSouth's New Zealand operations. The company employs over 3,000 people and has operations nationwide, with its main offices based in Auckland, Wellington and Christchurch. The company is part of New Zealand Telecommunications Forum.
Document 3: AnyWho.com: AnyWho.com is an online telephone directory owned by AT&T. It was founded under ownership by AT&T Corporation, and became a subsidiary of The New AT&T in November 2005. Its listings are currently provided by YELLOWPAGES.COM, a wholly owned company of AT&T that was formerly a BellSouth - AT&T joint venture. AnyWho.com was to be integrated into YELLOWPAGES.COM, however, BellSouth rejected due to issues relating to AT&T's stake in YELLOWPAGES.COM. That integration is to be likely, however, due to BellSouth's acquisition by AT&T.
Document 4: BellSouth: BellSouth Corporation (stylized as "BELLSOUTH") was an American telecommunications holding company based in Atlanta, Georgia. BellSouth was one of the seven original Regional Bell Operating Companies after the U.S. Department of Justice forced the American Telephone & Telegraph Company to divest itself of its regional telephone companies on January 1, 1984.
Document 5: Vodafone Hungary: Vodafone Hungary, member of the Vodafone Group is a mobile telephone company in Hungary. It started to operate in 1999 after securing the third GSM 900/1800 MHz license of the country and it was the first provider operating in the DCS-1800 band in Hungary. Vodafone is the third largest mobile network operator of the country, and controlling 22,84% of the market as of June 2012.
Document 6: Vodafone Events Centre: Vodafone Events Centre (originally the TelstraClear Pacific Events Centre) is a multi-purpose event centre located in Manukau, Auckland, New Zealand (suburb of the former Manukau City), with an indoor arena, theatre and meeting halls hosting community, cultural and sports events, concerts and plays, exhibits, trade shows and expos, corporate functions, meetings, weddings and other special events. The event centre has cost an estimated NZ$ 48.7 million, of which somewhat less than half came from Manukau City Council. The naming rights sponsor was TelstraClear. but after it was purchased by Vodafone New Zealand, the center was subsequently renamed.
Document 7: Black + White Mobile: Black+White is a New Zealand mobile virtual network operator which uses Vodafone New Zealand's GSM (and UMTS networks, where available). Their handsets are compatible with the Vodafone network and some may also be compatible with Spark's network. The handsets are similar to Vodafone's handset range but are sold at different prices. Although they operate on Vodafone's network, Black+White use their own mobile numbers with the 028 prefix at the beginning of the mobile number.
Document 8: Jeni Mundy: Jeni Mundy FREng (born in 1965) is Director, Products and Innovations at Vodafone. She emigrated from the UK to New Zealand in 1994 with a master’s in electronic engineering and began her telecoms career with Bellsouth as an RF engineer. By 2001 she was head of the technology team at Vodafone New Zealand (after the UK carrier bought up Bellsouth in 1998). She moved to the UK CTO position in 2007.
Document 9: AT&amp;T: AT&T Inc. is an American multinational telecommunications conglomerate, headquartered at Whitacre Tower in downtown Dallas, Texas. AT&T is the world's largest telecommunications company. AT&T is the second largest provider of mobile telephone services and the largest provider of fixed telephone services in the United States, and also provides broadband subscription television services through DirecTV; combined with AT&T's legacy U-verse service, this also makes AT&T the largest pay television operator. AT&T is the second-largest company in Texas, behind ExxonMobil. s of February 2017 , AT&T is the 12th largest company in the world (non-oil and overall) as measured by a composite of revenues, profits, assets and market valuation. AT&T is the largest telecommunications company in the world by revenue. s of 2017 , it is also the 18th-largest mobile telecom operator in the world, with 134 million mobile customers. AT&T was ranked at #4 on the 2017 rankings of the world's most valuable brands published by Brand Finance.
Document 10: Verizon New Jersey: Verizon New Jersey, Inc., formerly New Jersey Bell Telephone Company, is the Bell Operating Company serving the U.S. state of New Jersey. In 1984, the Bell System Divestiture split New Jersey Bell off into a Regional Bell Operating Company, along with the 21 other BOCs AT&T had a majority stake in. On January 1, 1984, New Jersey Bell became part of Bell Atlantic.
Document 11: Indiana Bell: Indiana Bell Telephone Company, Incorporated, is the Bell Operating Company serving Indiana. It is an indirect subsidiary of AT&T Inc., owned by AT&T Teleholdings.
Document 12: Vodafone: Vodafone Group plc is a British multinational telecommunications company, with headquarters in London. It predominantly operates services in the regions of Asia, Africa, Europe, and Oceania.
Document 13: Optus: Singtel Optus Pty Limited is the second largest telecommunications company in Australia. It is a wholly owned subsidiary of SingTel (a company headquartered in Singapore) since 2001. The company primarily trades under the Optus brand, while maintaining several wholly owned subsidiary brands, such as Virgin Mobile Australia in the mobile telephony market, Uecomm in the network services market and Alphawest in the ICT services sector.
Document 14: Vodafone Czech Republic: Vodafone Czech Republic a.s. is a Czech telecommunications company. It is among the largest Czech companies by revenue. It was established as Český Mobil (Czech Mobile) in 1999, when the government of Miloš Zeman granted it a free license to operate the third mobile GSM network. Its mobile network was called Oskar; the company itself was renamed in September 2004 to Oskar Mobil. In 2005 the international company Vodafone became the sole shareholder, which in November 2005, approved the most recent change in the company name. Czech Vodafone currently has over 3 million customers. The director is Balesh Sharma since the end of 2013.
Document 15: Sprint Corporation: Sprint Corporation, commonly referred to as Sprint, is an American telecommunications holding company that provides wireless services and is an internet service provider. It is the fourth largest mobile network operator in the United States, and serves 59.7 million customers, as of April 2017. The company also offers wireless voice, messaging, and broadband services through its various subsidiaries under the Boost Mobile, Virgin Mobile, and Assurance Wireless brands, and wholesale access to its wireless networks to mobile virtual network operators. The company is headquartered in Overland Park, Kansas. In July 2013, a majority of the company was purchased by Japanese telecommunications company SoftBank Group Corp., although the remaining shares of the company continue to trade on the New York Stock Exchange.
ground_truth: Atlanta, Georgia