/**
 * Phone Number Formatting Constants
 *
 * Constants for phone number validation and formatting across different countries.
 *
 * @module locale/phone
 */
/**
 * Phone number formats and validation
 */
export declare const PHONE_FORMATS: {
    /**
     * International prefix
     */
    readonly INTERNATIONAL_PREFIX: "+";
    /**
     * International direct dialing prefix
     */
    readonly IDD_PREFIX: "00";
    /**
     * US country code
     */
    readonly US_COUNTRY_CODE: "1";
    /**
     * UK country code
     */
    readonly UK_COUNTRY_CODE: "44";
    /**
     * Germany country code
     */
    readonly DE_COUNTRY_CODE: "49";
    /**
     * France country code
     */
    readonly FR_COUNTRY_CODE: "33";
    /**
     * Japan country code
     */
    readonly JP_COUNTRY_CODE: "81";
    /**
     * China country code
     */
    readonly CN_COUNTRY_CODE: "86";
    /**
     * India country code
     */
    readonly IN_COUNTRY_CODE: "91";
    /**
     * Brazil country code
     */
    readonly BR_COUNTRY_CODE: "55";
    /**
     * US phone number length (without country code)
     */
    readonly US_PHONE_LENGTH: 10;
    /**
     * UK phone number length (without country code)
     */
    readonly UK_PHONE_LENGTH: 10;
    /**
     * International phone minimum length
     */
    readonly MIN_PHONE_LENGTH: 7;
    /**
     * International phone maximum length
     */
    readonly MAX_PHONE_LENGTH: 15;
    /**
     * E.164 format maximum length (with +)
     */
    readonly E164_MAX_LENGTH: 16;
    /**
     * E.164 format minimum length (with +)
     */
    readonly E164_MIN_LENGTH: 8;
    /**
     * Area code length (US)
     */
    readonly US_AREA_CODE_LENGTH: 3;
    /**
     * Exchange code length (US)
     */
    readonly US_EXCHANGE_CODE_LENGTH: 3;
    /**
     * Line number length (US)
     */
    readonly US_LINE_NUMBER_LENGTH: 4;
    /**
     * Extension maximum length
     */
    readonly MAX_EXTENSION_LENGTH: 6;
    /**
     * Country code maximum length
     */
    readonly MAX_COUNTRY_CODE_LENGTH: 3;
    /**
     * National number maximum length
     */
    readonly MAX_NATIONAL_NUMBER_LENGTH: 15;
};
/**
 * Phone number format patterns
 */
export declare const PHONE_PATTERNS: {
    /**
     * US phone format pattern
     */
    readonly US_FORMAT: "(XXX) XXX-XXXX";
    /**
     * UK phone format pattern
     */
    readonly UK_FORMAT: "XXXX XXX XXXX";
    /**
     * International format pattern
     */
    readonly INTERNATIONAL_FORMAT: "+X XXX XXX XXXX";
    /**
     * E.164 format pattern
     */
    readonly E164_FORMAT: "+XXXXXXXXXXXX";
    /**
     * Extension format
     */
    readonly EXTENSION_FORMAT: "ext. XXXX";
};
/**
 * Type exports
 */
export type PhoneFormat = (typeof PHONE_FORMATS)[keyof typeof PHONE_FORMATS];
export type PhonePattern = (typeof PHONE_PATTERNS)[keyof typeof PHONE_PATTERNS];
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