They also call it "Lagna" in Thailand.
I am very happy to know that there is one stall now in Kuala Lumpur selling this kind of noodle and that is in Bandar Menjalara. The taste and quality is quite close to those found in Penang, the 2 prawns were fresh and yummy. RM4.50 for this.
They served with this sambal belacan instead of pickled chilli.
This stall is located at the same shop selling my favourite fish ball noodle. See here.
Chow Kee Coffee ShopJalan 9/62A
GPS : 3.19454, 101.631946