As a group, Tai-Lao spoken Tai yo in Nong Khai, Nakhon phanom and Sakon Nakhon province of prachin buri, Muang saraburi, where this group migrated from Laos. Some of them can speak Thai ISAN.
A Tai - Lao spoken among the Tai Yo Maha Nakhon Phanom in Nakhon Nayok, Prachin Buri and Saraburi. This group of immigrants from Laos. Some can speak Isaan Thailand.
A language group Tai - Lao said in Zabrze NYO in Sakon Nakhon Phanom, Nong Khai, Maha Sarakham, prachinburi and Saraburi. This group migrated from Laos. Some groups can speak Thai isan.