I would like to know my iPhone's model no. Is that GSM or Global? On the back of the phone it says “Designed by Apple in California Assembled in China – Model A1530”.
I am from India. Where do I find the model number? Is that GSM or Global?
You can find the model number of your iPhone in Settings > General > About. There is an entry under "Model". This describes your phones model configuration, such as colour and memory size.
The model number you mention is the region and network configuration as per below table. So you have the Asia Pacific model.
iPhone 5s Model Number ---------------------------------- GSM/North America A1533 CDMA/Verizon A1533 CDMA/China Telecom A1533 CDMA/US/Japan A1453 UK/Europe/Middle East A1457 China Unicom A1528 Asia Pacific A1530 China Mobile A1518
What do you mean by "Global"? GSM is a telecommunications networking standard defining the protocols for what is commonly known as 2G.
Since you tagged your question as "iphone-5s", the networks it supports are