Xiaomi 18 'madrid' Spotted in GSMA IMEI Database

• 2611FPNFAR: Japan
• 2611FPNFAG: Global
• 2611FPNFAI: India
• M154FF: China / China-linked variant

This spread of model numbers across Japan, India, global markets, and China is a strong signal that "madrid" is not a China-exclusive test unit, but a device being prepared for a wide commercial launch . However, it's important to remember that Xiaomi has not yet officially confirmed the device .

Which phone is 'madrid'? The evidence points toward it being the standard Xiaomi 18 or a compact flagship variant, but the picture isn't entirely clear. One report describes "madrid" as Xiaomi’s “next compact flagship” and ties it to the Xiaomi 18 series . Another notes that the lineup configuration is "less clear" from the IMEI data alone . For now, the most likely interpretation is that "madrid" is the base-model Xiaomi 18, but its use as a series-level codename can't be ruled out.

The "2611" Prefix and the Launch Date Mystery

The "2611" prefix found in three of the four model numbers has become a source of conflicting launch-date rumors . Here’s the critical point: no source provided confirms that "2611" is an official Xiaomi date code, and any interpretation of it pointing to a November 2026 launch is a leak-based reading, not a hard fact.

This speculation creates a direct conflict with other, more fleshed-out leaks. Multiple reports about the higher-end Xiaomi 18 Pro Max, including those attributed to the well-known leaker Digital Chat Station, point to a September 2026 launch window . For the base Xiaomi 18, the safest conclusion is that the IMEI listing confirms the phone is moving toward certification, but it does not pin down a precise launch month .

The Bigger Picture: Xiaomi 18 Pro Max Leaks

While the "madrid" IMEI listing reveals little about the phone’s hardware, a separate and more detailed set of leaks is painting a picture of the rumored top-tier model, the Xiaomi 18 Pro Max. These specifications have not been linked to the "madrid" codename in the available sources but provide context for the series’ high-end ambitions .

Key rumored specs for the Pro Max include:

• Chipset: Snapdragon 8 Elite Gen 6 Pro
• Display: A large, flat 6.9-inch panel
• Battery: An 8,500mAh capacity, which one report described as using silicon-carbon technology
• Cameras: A dual 200MP setup, with reports describing a 200MP main sensor and a 200MP telephoto/periscope camera

Rumors regarding a potential Xiaomi 18 Ultra model remain unverified. While some sources discuss an Ultra variant , the provided sources do not confirm that an 18 Ultra has been canceled in favor of the Pro Max configuration. The current leak landscape primarily establishes a rumored Pro Max tier, not the confirmed removal of an Ultra model .

Key Takeaway

The GSMA IMEI listing of "madrid" is the first strong, source-backed sign that a Xiaomi 18-series compact flagship is on the way, with model numbers already tied to China, India, Japan, and global markets . The model number has triggered launch-timing speculation, but no concrete evidence confirms a November 2026 date, leaving a September 2026 window from other leaks as a strong competing narrative. The high-end of the series is shaping up around a rumored Pro Max model, with leaks pointing to a 6.9-inch display, dual 200MP cameras, and a leading 8,500mAh battery .