Number format
Hong Kong's country code is +852. Local numbers have 8 digits and there is no leading 0 to remove: mobile numbers commonly start with 5, 6 or 9, for example 9123 4567. International format: +852 9123 4567 (or 85291234567).
Language
Hong Kong customers read Traditional Chinese and English. Chinese characters use a different encoding from plain English, so fewer characters fit in one message and longer texts are split into parts, each charged. If you send in both languages, check the length of each.
Promotional messages
Hong Kong has an ordinance on unsolicited electronic messages, with a do-not-call register, rules on identifying the sender and a requirement to provide an unsubscribe option. Check the current rules with a local adviser before sending marketing messages. Do not send promotions to people who have not agreed to receive them.
Sender ID
Ask us what sender name options are available for Hong Kong on your account before you launch. Do not assume a custom name will be displayed.
Typical uses
OTP for apps and trading or payment services, booking and delivery notices, reminders, and promotions to opted-in customers.
Billing
Prepaid balance, billed per message to Hong Kong. Rates are inside your account. See pricing.