AABB Numbers

AABB numbers (เบอร์คู่) end with two pairs of repeated digits, e.g. xxx-xx5-5566 or xxx-xx8-8899. They are easy to remember, look balanced and are popular for business lines.

93 numbers found

Frequently asked questions

How is AABB different from ABAB?

AABB is two doubles side by side (5566), while ABAB alternates two digits (5656).