A Noongar man from Perth says a petition he started pushing for the Aboriginal and Torres Strait Islander flags to be turned into emojis has had a strong response.

Derek Nannup said he got the idea when he saw a string of international flag emojis on social media and wondered why Australia's Aboriginal and Torres Strait Islander flags were not among them.

Mr Nannup says he is "determined to get [the Indigenous flags] as an emoji". ( Change.org: Derek Nannup )

"I don't really know half of the flags," he said.

"So it kinds of make me curious to figure out and know what they are.

"I'm wondering if other people would be the same as me, and if they saw the Aboriginal flag it'd make them want to look into it and learn more about our culture and our people."

He said the Change.org petition he started in March had attracted almost 2,000 signatures, and its success had spurred him to push harder.

"When I wrote statuses to ask friends to share, I got heaps of shares and I was really surprised once I saw the signatures coming through, and the support," he said.

"I was really happy and determined to get this as an emoji."

He has started lobbying technology companies that have already produced emojis of national flags.

"Aboriginal and Torres Strait Islander People belong to the longest continuous living culture in the world and have their own traditions, customs, languages, spirituality, culture, and FLAG, amongst many things," the petition reads.

"I feel having both an 'Aboriginal' flag and a 'Torres Strait Islander' flag as an emoji will let the world know we are an independent, proud culture.

"I also strongly believe it'll help bring conversation to reshape our constitution globally."

There are more than 200 flags in the Apple emoji lineup.

There are hundreds of flag emojis available. ( Supplied: Emojipedia )

ABC/wires