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Hong Kong: SMS delivery facts

SMS delivery to Hong Kong uses the +852 calling code. Alphanumeric sender IDs are allowed and commonly used without a centralized government sender-ID registry. The charset class is UCS-2 as Chinese characters force UCS-2 encoding at 70 characters per single segment, while English traffic fits GSM-7.

Country calling code+852 (ITU-T E.164 assigned country codes, retrieved 2026-07-27)
E.164 format+852 followed by the national subscriber number, no leading trunk zero, 15 digits maximum overall (ITU-T E.164)
Alphanumeric sender IDallowed (per Hong Kong mobile operator practice, retrieved 2026-07-26)
Registration regimeno registration scheme
Dominant language(s)Cantonese/English
Native-text charsetUCS-2 — 70 characters per single SMS, 67 per concatenated segment (GSM 03.38 default alphabet vs script analysis, retrieved 2026-07-27)
Published smsroute rateUSD 0.02 per message, dated snapshot (source, retrieved 2026-07-27). Current rate and send path: rate card for Hong Kong

Sender-ID rules

Alphanumeric sender IDs are commonly used without a centralized government sender-ID registry. (per Hong Kong mobile operator practice, verified 2026-07-26)

Alphanumeric sender IDs are commonly used without a centralized government sender-ID registry, reflecting a sender-ID no registration scheme per Hong Kong mobile operator practice. Chinese characters force UCS-2; English traffic fits GSM-7. UCS-2 therefore yields 70-character single segments or 67 concatenated, versus 160 and 153 for GSM-7.

Character set and message length

Native Cantonese/English text is classed as UCS-2 here: 70 characters fit a single SMS and 67 per segment once a message is concatenated.

Chinese characters force UCS-2; English traffic fits GSM-7.

To count segments for a concrete message, use the UDH segment surgeon; to compare all 40 countries side by side, the country requirements explorer reads the same open dataset (CC-BY 4.0).

Frequently asked

Are alphanumeric sender IDs allowed for SMS to Hong Kong?
Yes, alphanumeric sender IDs are allowed per Hong Kong mobile operator practice and are commonly used without a centralized government sender-ID registry.; there is no sender-ID registration scheme.
What charset and segment lengths apply to SMS in Hong Kong?
The charset class is UCS-2. Chinese characters force UCS-2; English traffic fits GSM-7. UCS-2 segments are 70 single or 67 concatenated; GSM-7 segments are 160 single or 153 concatenated.
What is the calling code and published SMS rate for Hong Kong?
The calling code is +852. The published rate is 0.02 USD, retrieved 2026-07-27.

Related

Facts on this page are dated snapshots with named sources; rates change — the linked rate card is authoritative. Corrections: ops@smsroute.cc. Last verified 2026-07-27.