Austria doesn't have one central pet-emergency phone number. According to the Österreichische Tierärztekammer (the Austrian Veterinary Chamber), emergency cover is organised regionally — most states or municipalities run an on-call service reachable by phone around the clock, and many animal clinics run their own 24-hour services as well.

The Chamber's own official guidance recommends asking your regular vet in advance who to contact in an emergency, since distances to the nearest on-call practice vary significantly by region, and calling ahead before travelling to an emergency practice is specifically advised so staff know you're coming and can flag an especially long drive. If you're staying somewhere for more than a day or two, finding and saving the nearest regional on-call number as soon as you arrive is the practical equivalent of that advice for a visiting pet owner.

In Vienna specifically, the city runs a separate animal welfare helpline on 01-4000-8060 (Monday to Friday 8:00-18:00, Saturday 9:00-15:00) — worth knowing as a resource, though it's an animal welfare line rather than a clinical emergency dispatch service, so a genuine medical emergency still needs an actual emergency vet practice, not this number. Emergency treatment costs more than a routine visit because of the extra staffing involved, and Austrian practices generally expect payment on the spot, in cash or by card, rather than billing afterward.