Club Sim
eSIM + PhysicalCSL's no-contract, pack-based prepaid platform — keep a Hong Kong number for about HK$15-28/year
Best for: Parking a Hong Kong number for under HK$30/year; Greater-China roaming with 90-day validity; residents who want CSL-network quality without a contract
Overview
Club Sim is CSL Mobile's self-service prepaid brand (HKT group, sister of csl/1O1O): buy service packs — local data, voice, Greater-China roaming, Asia-Pacific day passes — in the app or website with no contract and no admin fee. Its keep-alive rule is the standout: buying any pack within 365 days of the last keeps the number alive, with packs starting at HK$15.
Club Sim is not a travel eSIM store — it is a Hong Kong operator's official pack-based prepaid platform, and that is exactly its value. For number parking, the rule is simple and official: purchase any service pack within 365 days of your last purchase and the number stays yours; miss the window and the number is permanently deactivated and may be reassigned. The cheapest keep-alive is the HK$15 Asia 24-hour roaming pass; the cheapest local pack is HK$28 (5GB local data or unlimited local voice, 90 days / 1 month).
Mainland China usability (official): a dedicated China-Macau roaming zone sells 1GB/HK$38 and 3GB/HK$88 with 90-day validity, plug-and-play on arrival, with the operator advertising unrestricted social-app access; VoLTE and Wi-Fi Calling are supported (VoLTE requires a voice pack). Note the local voice pack explicitly excludes roaming voice and international calls.
Fine print that matters: new-SIM orders carry a minimum charge of HK$50 (buy a $28 pack and you must add items to reach $50, or pick a $58 pack); real-name registration under Hong Kong law is mandatory — unregistered SIMs are suspended — though visitors can register with a passport (this is statutory registration, not 'no-KYC'); eSIM issuance is free by email and physical-to-eSIM conversion is self-service in the app (more than one eSIM swap per year costs HK$40 each); no 5G — the ceiling is 4.5G at 42Mbps; packs are non-refundable. Community 'free-KYC' and MeSIM/Xesim-import claims are not confirmed by any official page and are treated as unverified.
Popular plans
| Plan | Data from | Validity | Price |
|---|---|---|---|
| Asia data roaming pass (24h) | 24h unlimited full-speed | 24 hours | HK$15+ |
| Local data 5GB | 5GB full-speed local | 90 days | HK$28 |
| Local voice & SMS pack | No data; unlimited local calls + $6 SMS credit | 1 month | HK$28 |
| China Mainland & Macao roaming 1GB | 1GB high-speed roaming | 90 days | HK$38 |
| China Mainland & Macao roaming 3GB | 3GB high-speed roaming | 90 days | HK$88 |
| Local data+voice 20GB | 20GB @42Mbps then throttled + unlimited local calls | 1 month | HK$58 |
All packs verified on clubsim.com.hk 2026-09-27. New-SIM orders enforce a HK$50 minimum charge; packs are non-refundable.
Pros
- 365-day keep-alive with packs from HK$15 — one of the cheapest HK number parking options
- No contract, no admin fee, packs on demand
- Free eSIM by email; in-app physical/eSIM swap
- 90-day China-Macau roaming packs usable in the mainland
- CSL network with VoLTE/VoWiFi and MNP
Things to note
- HK$50 minimum charge on new-SIM orders
- Mandatory real-name registration (HK law); unregistered SIMs suspended
- No 5G — capped at 4.5G 42Mbps
- Local voice pack excludes roaming voice and international calls
- Packs non-refundable; number permanently recycled after 365 idle days
Key features
- Official CSL Mobile prepaid brand (HKT group)
- 365-day keep-alive rule, cheapest pack HK$15 (Asia 24h pass)
- Free eSIM delivery by email; physical/eSIM swap in-app
- China-Macau roaming packs with 90-day validity
- MNP supported, up to 10 SIMs per account