SoftBank SIM cards initially enabled Apple’s 2008 emoji support.
Apple introduced its first Apple Color Emoji set with iPhone OS 2.2 in November 2008, initially limiting the emoji keyboard to Japanese iPhone users. The system used SoftBank’s private-use encoding, so support was associated with iPhones using a SoftBank SIM card, the carrier connected with Apple’s Japanese launch.
This arrangement reflected the fragmented state of Japanese mobile emoji. Carriers such as SoftBank, au by KDDI, and NTT DoCoMo had their own pictographic sets and incompatible encodings. Apple’s early implementation drew heavily on the SoftBank system, and several Apple designs resembled SoftBank’s icons.
The restriction did not last forever. Users outside Japan found ways to expose the Japanese emoji keyboard, helping create demand for broader access. Apple eventually made emoji available worldwide, and later iOS releases shifted from SoftBank’s private-use encoding to standard Unicode. That is why modern emoji can travel between platforms more reliably, even though their artwork still varies by company.