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Validates a 12-digit Uzbekistan phone number without the leading '+' sign. It matches the country code 998, followed by a two-digit operator code — either a landline code composed of digits 3, 7, or 8 (e.g., 71, 78, 33, 88), or a mobile code 90, 91, 93, 94, 95, 97, 98, or 99 — and ends with a 7-digit subscriber number. Commonly used for form validation and sanitizing Uzbek phone numbers in international format.