Answer

No. Continuously 5 Upvas is generally called Panch Upvas or 5 Upvas.

Attham / Atham means 3 continuous Upvas.

Explanation

In common Jain practice:

• 1 Upvas = one full fast
• Bey Upvas = 2 continuous fasts
• Attham / Atham = 3 continuous fasts
• Chauvihar Attham = 3 continuous fasts with Chauvihar rules
• 5 Upvas = Panch Upvas

So, 5 continuous Upvas is not called Attham.

Takeaway

Attham = 3 Upvas, while 5 continuous Upvas = Panch Upvas / 5 Upvas.