Blank & Programmable USIM SIM Cards Supplier – 4G LTE / 5G SA | HKCARD Electronics
Programmable SIM Cards 4G/5G – Blank Writable USIM | HKCARD
HKCARD: Trusted supplier of blank writable programmable USIM cards since 2009. Program IMSI, Ki, ICCID. SysmoUSIM alternative. Bulk orders. OMNIKEY compatible.
https://www.hkcard-electronics.com/programmable-blank-usim-sim-cards
HKCARD ELECTRONICS: Your Global Source for Blank, Writable & Programmable USIM SIM Cards Since 2009
For over 15 years, HKCARD ELECTRONICS CO., LIMITED has been a trusted manufacturer and bulk supplier in the mobile phone SIM card industry—specializing in blank sim cards, writable programmable USIM cards, and test SIM solutions for 4G LTE and 5G networks.
Whether you’re developing private cellular networks, testing core systems, or building IoT devices, our programmable LTE USIM cards offer full compatibility with sysmoUSIM standards—giving you complete control to personalize critical parameters like IMSI, Ki, ICCID, OPC, and ADM keys.
We supply high-quality, factory-direct blank 4G sim cards, blank 5G sim cards, and white triple-format SIMs used by telecom engineers, MVNOs, researchers, and integrators worldwide.
What Are Programmable USIM Cards?
Programmable USIM cards (Universal Subscriber Identity Module) are blank, rewritable SIM cards that allow developers, network operators, and testers to write custom subscriber profiles. Unlike carrier-locked SIMs, these cards support:
- Full programming of IMSI, Ki, OPC, ICCID, SPN, and FPLMN
- Authentication algorithms: MILENAGE, COMP128v1/v2/v3
- Compatibility with Open5GS, srsRAN, Kamailio, and FreeDiameter
Ideal for lab environments, roaming tests, and private 5G deployments.
HKCARD’s Core Product Range
✅ Blank / Writable USIM Cards (4G LTE)
- Fully rewritable 128K memory
- Supports all standard USIM LTE applications
- Compatible with sysmoUSIM-SJS1
✅ Blank 5G SIM Card – 5G SA 128K USIM
- Meets 3GPP Release 15+ specs
- Enables SUCI (Subscription Concealed Identifier) encryption
- Direct alternative to sysmoISIM-SJA2 and sysmoISIM-SJA5
✅ Blank White Triple Format SIM
- Includes 2FF (full-size), 3FF (micro), and 4FF (nano) in one card
- Popular as empty sim card, dummy sim, or carte sim vierge
- Ready for SIM card printing (logo, QR code, serial number)
✅ Test & Development SIM Cards
- Used as white sim, bulk sim cards, or programmable sim card 5g
- Perfect for certification labs and interoperability testing
Supported Programming Tools & Workflows
Our writable programmable blank sim usim cards work seamlessly with industry-standard tools:
- HID OMNIKEY 3121 USB Smart Card Reader & Writer (most recommended)
- Any PC/SC-compliant sim card reader writer
- Open-source SIM card programming software:
- pySIM
- pysim-shell
- Sysmocom SIM card programming software
🔧 Tip: With an OMNIKEY 3121 and pySIM, you can program a full IMSI/Ki profile in under 2 minutes.
We also provide guidance on sim personalize tools and integration with HSS/HLR systems.
Key Applications Across Industries
| Industry | Use Case |
|---|---|
| Private 5G / LTE Networks | On-premise cellular for factories, ports, campuses |
| Telecom R&D Labs | Core network testing, roaming simulation |
| IoT & M2M | Secure device authentication with custom USIM LTE |
| MVNO Startups | Rapid provisioning without carrier dependency |
| Universities | Teaching 4G/5G protocols with hands-on SIM programming |
Why Partner with HKCARD?
✅ 15+ Years Expertise – Specialized in SIM manufacturing since 2009
✅ Factory Direct Pricing – No middlemen; competitive bulk rates (100–1M+ units)
✅ Sysmocom-Compatible Quality – Fully functional replacement for Sysmocom SIM cards
✅ Global Shipping – DHL/FedEx samples in 3–5 days
✅ Customization Services – SIM card printing, pre-personalization, laser engraving
Frequently Asked Questions (FAQ)
Q1: Can I program IMSI, Ki, and ICCID on your blank SIM cards?
A: Yes. All HKCARD writable SIM cards support full personalization of IMSI, Ki, ICCID, OPC, ADM1/ADM2, and more using standard tools like OMNIKEY 3121 and pySIM.
Q2: Are your cards compatible with sysmoUSIM-SJS1 or sysmoISIM-SJA5?
A: Absolutely. Our programmable USIM cards are functionally equivalent and widely used as cost-effective alternatives to Sysmocom SIM cards.
Q3: What’s the difference between a blank 4G SIM and a blank 5G SIM?
A: A blank 4G sim card supports LTE authentication only. A blank 5g sim card (5G SA 128K) adds SUCI calculation, larger file system, and 5G AKA—essential for Standalone 5G networks.
Q4: Do you sell dummy SIMs or empty SIM cards?
A: Yes. We supply empty sim, dummy sim, white sim card, and carte sim vierge in triple-cut format for testing and printing.
Q5: Which SIM card programmer do you recommend?
A: The HID OMNIKEY 3121 USB Smart Card Reader & Writer is the most reliable and widely supported device for programmable SIM cards.
Q6: Can I print my company logo on the SIM?
A: Yes. We offer professional SIM card printing services—including logos, ICCID numbering, and security features—for bulk orders.
Q7: What is a SUCI SIM card?
A: A SUCI SIM card is a 5G USIM that encrypts the subscriber identity (IMSI) during registration, enhancing privacy. Our sysmoISIM-SJA5-compatible cards fully support this feature.
Q8: Do you provide SIM card programming software?
A: While we don’t develop proprietary software, our cards work out-of-the-box with open-source tools like pySIM and Sysmocom-compatible programming software.
Q9: How quickly can I get samples?
A: Samples ship within 24 hours via DHL/FedEx and arrive in 3–5 business days globally.
Q10: How do I place a bulk order?
A: Contact our sales team with your required type (4G/5G), quantity, and customization needs. We respond within 2 hours.
- 1: “HKCARD blank white triple format programmable USIM SIM card for 4G LTE and 5G SA networks – sysmoUSIM compatible”
- 2: “Programming IMSI and Ki on HKCARD writable SIM card using HID OMNIKEY 3121 USB smart card reader writer”
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- White SIM Card Printing Services for Telecom Test Labs – HKCARD
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Ready to Order or Request Samples?
HKCARD ELECTRONICS CO.,LIMITED
Whatsapp/wechat:+8615817372512
Skype/Teams：byron1681
Email：byronhan@cardmfg.com
HKCARD ELECTRONICS CO., LIMITED – Your Reliable Partner in Programmable SIM Solutions Since 2009.
