John Callachan's Location
North Branford, Connecticut, United States
John Callachan's Work
John Callachan's Education
John Callachan's Skills
John Callachan's Summary
John Callachan, based in North Branford, Connecticut, United States, is currently a Application Sales Director at At&t, bringing experience from previous roles at At&t, Broadwing Communications and Wiltel Communications. John Callachan holds a Bachelor Of Arts in English Literature. With a robust skill set that includes VoIP, IP, Wireless, Customer Relations, Colocation and more, John Callachan contributes valuable insights to the industry. John Callachan has 2 emails on RocketReach.