Vodafone Americas

In the United States, Vodafone owns 45% of Verizon Wireless, the country's largest mobile carrier after their merger with Alltel. The percentage of the customer base, and revenues of Verizon Wireless that Vodafone consolidates is slightly lower, since some Verizon Wireless subsidiaries have minority investors. (Hence the exact percentages that Vodafone and Verizon report vary from period to period: in June 2006 Vodafone reported that Verizon Wireless owned 98.6% of its customers at that date.) Before this joint venture was formed, Vodafone merged with AirTouch Communications of the U.S. in June 1999, and changed its name to Vodafone Airtouch plc. In September 1999, Vodafone Airtouch announced a $70-billion joint venture with Bell Atlantic Corp. Verizon Wireless was composed of Bell Atlantic's and Vodafone AirTouch's U.S. wireless assets, and began operations on 4 April 2000. However, Verizon Communications - the company formed when Bell Atlantic and GTE merged on 30 June 2000 - owns a majority of Verizon Wireless, and Vodafone's branding is not used, nor is the CDMA network compatible with GSM phones. This relationship has been quite profitable for Vodafone, but there have historically been three problems with it. The first is the above-mentioned incompatibility with the GSM 900/1800 MHz standard used by Vodafone's other networks, and the consequent difficulty of offering roaming between Vodafone's U.S. and other networks. The other two stem from the fact that Vodafone does not have management control over Verizon Wireless. Vodafone is thus unable to use the Vodafone brand for its U.S. operations, and (perhaps more importantly) has no control of dividend policy at Verizon Wireless, and is therefore entirely at the mercy of Verizon management with respect to cash flow from Verizon Wireless.

Perhaps as a consequence of these reasons, Vodafone made a bid for the entirety of AT&T Wireless when that company was for sale in 2004. Had this bid been successful, Vodafone would presumably have sold its stake in Verizon Wireless, and then rebranded the resultant business as Vodafone. However, Cingular Wireless, at the time a joint venture of SBC Communications and BellSouth (both now part of AT&T), ultimately outbid Vodafone and took control of AT&T Wireless (the combined wireless carrier is now AT&T Mobility), and Vodafone's relationship with Verizon has continued.

Early in 2006, Verizon re-iterated their desire to buy out the remaining 45% of stock of Verizon Wireless from Vodafone Group. Vodafone has also repeatedly indicated that it would be willing to buy out Verizon's stake.

Verizon has announced that its 4G data network will be LTE, which is considered part of the GSM path and not the CDMA2000 path Verizon has been using; it has been suggested[who?] this is to appease Vodafone, which uses GSM on its own networks.

On 11 May 2008, Vodafone sealed a trade agreement with the Chilean Entel PCS Chile, in which Entel PCS has access to the equipment and international services of Vodafone, and Vodafone will be one of the trademarks of Entel for the wireless business. This step will give the Vodafone brand access to a market of over 15 million people, currently divided among three companies: Telefonica Movistar, Claro, and Entel PCS.