Voice Roaming Countries U-Z
| Ukraine | Kyivstar |
|---|
| | MTS (was UMC) |
|---|
| United Arab Emirates | Etisalat |
|---|
| United Kingdom | Telefonica O2 (unilateral outbound only. SURE customers on
the Telefonica network) |
|---|
| | Vodafone |
|---|
| | Orange (1800 only) |
|---|
| | T-Mobile (was One2One) (1800 only) |
|---|
| | Hutchison 3G (SURE customers require a 3G handset to use this
network) |
|---|
| | Cable & Wireless Worldwide (unilateral inbound
only. C&W UK customers on SURE network) |
|---|
| Uruguay | CLARO (was CTI Movil "AM Wireless") (1900 only) |
|---|
| U.S.A. | T-Mobile (was Voicestream/Powertel) (1900 only) |
|---|
| | T-Mobile (was Voicestream East Coast) (1900 only) |
|---|
| | T-Mobile (was Voicestream Central) (1900 only) |
|---|
| | T-Mobile (was Voicestream West Coast) (1900 only) |
|---|
| | Sprint Nextel (unilateral inbound only. Sprint Nextel customers
on SURE network) |
|---|
| | AT&T (was Cingular/Pac Bell) (1900 only) |
|---|
| | AT&T (was Cingular/BellSouth Mobility) (1900 only) |
|---|
| | AT&T (was Cingular Genesis) (1900 only) |
|---|
| | AT&T (was Cingular) (1900 only) |
|---|
| U.S. Virgin Islands | AT&T (was Cingular) (1900 only) |
|---|
| Uzbekistan | Unitel |
|---|
| Vanuatu | Digicel |
|---|
| Vietnam | Hanoi Telecom Joint Stock Company "Vietnamobile" |
|---|