Phang Nga (Thai: พังงา, pronounced [pʰāŋ.ŋāː]) is one of the southern provinces (Changwat) of Thailand, on the shore of the Andaman Sea to the west and Phang Nga Bay to the south. Neighbouring provinces, from north and moving clockwise, are Ranong, Surat Thani, and Krabi. Towards the south of Phang Nga is the Phuket province, connected by the Sarasin Bridge.
Ranong is one of Thailand's southern provinces (changwat), on the west coast along the Andaman Sea. It has the fewest inhabitants of all Thai provinces (making it the least populous of all the Thai provinces). Provinces neighboring Ranong are (clockwise) Chumphon, Surat Thani, and Phang Nga. To the west, it borders Kawthaung, Tanintharyi, Myanmar.
Chumphon (Thai: ชุมพร, pronounced [t͡ɕʰūm.pʰɔ̄ːn]) is a southern province (changwat) of Thailand on the Gulf of Thailand. Neighbouring provinces are Prachuap Khiri Khan, Surat Thani, and Ranong. To the west it borders the Burmese province of Tanintharyi.
Pan Pan or Panpan was a small Hindu kingdom believed to have existed around the 3rd to 7th century CE. It is believed to have been located on the east coast of the Malay Peninsula, with opinion varying from somewhere in Kelantan or Terengganu, in modern-day Malaysia to the vicinity of Phunphin district, Surat Thani province, in modern Thailand.
According to the Chinese text Jiu Tang Shu, Pan Pan was bordered in the south with Langkasuka, and in the north with Tun Sun near the Kra Isthmus. Jacq-Hergoualc'h speculates that the border may have been south of Nakhon Si Thammarat, possibly near Songkhla.