The “XX” series is another JPJ-offered vanity prefix, essentially extending the concept of the single-letter X. Starting around 2020, JPJ began auctioning “XX” plates in batches, often alternating with the “YY” series and others. The double-X has a strong visual symmetry, making plates like XX 11, XX 88, XX 8080 very attractive to bidders. Certain numbers with X form popular Roman numerals (e.g., XX 20 could be read as “2020” or just aesthetically balanced). Like the X series, “XX” is not tied to any particular cause or region; it’s purely for those who want a unique, short plate. The series goes up to XX 9999, and releases have been staggered – ensuring sustained interest. One notable aspect: because “X” is commonly associated with extreme sports or the unknown, some buyers of XX plates are businesses or brands that want to convey edginess (e.g., a custom car shop might use “XX 1”). With each batch, JPJ has raked in solid revenue. The series is ongoing until all numbers are allocated. Already, some record bids have been noted (one source mentioned XX 88 went for a significant sum given 8’s luck in Chinese culture). Over time, as the series concludes, “XX” plates will be among the shortest possible (two letters, no state code) registrations. They are transferable like normal plates. Ultimately, the “XX” prefix offers drivers a chance to stand out with a plate that’s visually striking and exclusive to those in-the-know of JPJ’s auctions. Key Facts: Issue Date: 2020 Issuance Range: 1 - 9999 Rarity: Limited by periodic release (will be 9,999 total; many already issued) Transfer Rules: Standard