What is phoenix phone number? The customer support phone number of City of Phoenix is 602-262-6011 (Click phone number to call). The postal and official address, email address and phone number (helpline) of City of Phoenix Service Center and City of Phoenix customer service phone number is given below.What is the phone number for ups human resources phoenix az? The phone number for the UPS national human resources department is 1-800-877-1508. This line is primarily used for salary and employment verification by former employees, although live employee assistance is provided.What is the phone number for valley metro phoenix? Phone Number of Valley Metro Contact is +1-602-253-5000, 602-251-2039 . Valley Metro is well known for regional public transportation system operated by Valley Metro Regional Public Transportation Authority, a government agency. It serves the metropolitan area of phoenix region as well as nearby areas. Valley Metro History.