HKCARD – Reliable Supplier of Custom, Blank, and Programmable SIM Cards for 4G, 5G, IoT & More
Discover HKCARD Electronics Co., Ltd., a leading supplier of writable, reprogrammable, and programmable SIM cards. Get custom, blank, and white SIMs for 4G, 5G, IoT, and more. Compatible with Sysmocom, pySim, and Open Source Tools. Order now!
Introduction
In today’s rapidly evolving telecommunications landscape, SIM cards are the backbone of connectivity for mobile phones, IoT devices, and custom networks. As a trusted provider in the mobile phone SIM cards industry, HKCARD Electronics Co., Ltd. has been delivering high-quality, programmable, and writable SIM cards for over a decade. Our extensive experience ensures that we meet the diverse needs of telecom operators, enterprises, and innovators worldwide.
Whether you require writable IMSI SIM cards, reprogrammable blank SIMs, or custom 5G NR SA SIM cards, HKCARD offers a wide range of solutions. Our products are compatible with leading open-source tools and industry-standard platforms, making us a preferred choice for labs, universities, and developers.
Our Writable and Reprogrammable SIM Card Solutions
Writable IMSI SIM Cards & Writable Ki SIM Cards
HKCARD specializes in Writable IMSI SIM Cards and Writable Ki SIM Cards, allowing for easy reprogramming of IMSI and Ki values. This is essential for testing, development, and network management purposes.
Writable ICCID SIM Cards & Writable OP or OPc SIM Cards
We also offer Writable ICCID SIM Cards and Writable OP or OPc SIM Cards. These are ideal for telecom operators and network engineers who need to frequently update ICCID or OP/OPc information on SIM cards.
Writable KEY, SPN, and MNC/MCC SIM Cards
Our Writable KEY SIM Cards and Writable SPN SIM Cards ensure seamless integration with your network’s authentication and routing systems. Writable MNC/MCC SIM Cards are perfect for SIM cards used in multiple countries or regional networks.
Programmable SIM Cards for 4G, 5G, and IoT
USIM / LTE SIM Cards and 4G LTE/WCDMA Blank Cards
Our USIM / LTE SIM Cards are not limited to GSM networks. They support full 4G LTE and WCDMA, making them suitable for advanced mobile applications and IoT deployments.
IoT/Evaluation SIM Cards and Custom SIM Cards for 4G LTE & 5G NR Networks
We provide IoT/Evaluation SIM Cards and Custom SIM Cards for 4G LTE & 5G NR Networks. These SIMs are designed for rapid prototyping, testing, and deployment of IoT and 5G solutions.
HKCARD’s Programmable SIM Cards for 5G Networks
Our Programmable 5G NR 3GPP R16 SA 5G SIM Cards are compatible with next-generation 5G networks, offering superior performance and security for enterprise and commercial applications.
Custom and Bulk SIM Cards for Every Need
Available Form Factors and Sizes
Choose from a wide range of form factors, including 2FF, 3FF, and 4FF SIM Cards. We also offer white SIM cards, nano-USIM, blank SIM cards, blank USIM, and blank eSIM.
Multi-network 4G VoLTE SIM Cards and NFC-enabled SIMs
Our multi-network 4G VoLTE SIM Cards support seamless roaming and high-quality voice calls. NFC-enabled SIMs are perfect for secure mobile payments and contactless applications.
White Label, MVNO, and Offbrand SIM Cards
We provide white label MVNO SIM cards and offbrand SIM cards for businesses that want to establish their own mobile virtual network operator.
Bulk SIM Card Solutions and SIM Card Manufacturers
Whether you need bulk SIM cards or a reliable sim card manufacturer, HKCARD is your trusted partner for all your SIM card requirements.
Compatibility with Sysmocom, pySim, and Open-Source Tools
Many customers rely on Sysmocom SIM card solutions for their testing and development environments. At HKCARD, we understand the importance of compatibility and offer programmable SIM cards that work seamlessly with:
- Sysmocom SIM card / sysmocom SIM cards (including sysmoISIM‑SJA2, sysmoUSIM‑SJS1, sysmoISIM‑SJA5, SJA2)
- pySim and other PC/SC-based sim programming tools
- Open‑source stacks such as Open5GS, srsRAN, and similar setups
- USIM test solution environments in labs and universities
If you are currently using Sysmocom products, HKCARD can provide form-, function-, and file-system-compatible alternatives with better availability and competitive pricing.
Frequently Asked Questions
Q1: What are writable IMSI SIM cards used for?
A1: Writable IMSI SIM cards allow for easy reprogramming of the IMSI value, which is crucial for network testing, authentication, and development.
Q2: Are your SIM cards compatible with pySim and Open Source Tools?
A2: Yes, our SIM cards are fully compatible with pySim and other PC/SC-based programming tools, as well as open-source stacks for LTE/5G.
Q3: What form factors do you offer?
A3: We offer 2FF, 3FF, and 4FF SIM Cards, as well as nano-USIM and eSIM variants.
Q4: Can I get custom SIM cards for 5G NR networks?
A4: Absolutely! We provide custom SIM cards for both 4G LTE and 5G NR networks, including programmable 5G NR 3GPP R16 SA SIM Cards.
Q5: Do you supply white label MVNO SIM cards?
A5: Yes, we offer white label MVNO SIM cards for businesses that want to establish their own mobile virtual network operator.
Q6: What is the difference between a blank SIM card and a writable SIM card?
A6: A blank SIM card is empty and ready for programming, while a writable SIM card allows for easy reprogramming of key information such as IMSI, Ki, ICCID, OP, and more.
Q7: Are your SIM cards compatible with NFC?
A7: Yes, we offer a range of NFC-enabled SIM cards for secure mobile payments and contactless applications.
Q8: Can I purchase bulk SIM cards from HKCARD?
A8: Yes, we provide bulk SIM card solutions for businesses and enterprises with large-scale requirements.
Q9: Are your SIM cards suitable for IoT applications?
A9: Yes, our IoT/Evaluation SIM Cards and programmable SIM cards for 5G and 4G are ideal for IoT deployments and testing.
Q10: What is a reprogrammable SIM card?
A10: A reprogrammable SIM card can be updated or reprogrammed multiple times, unlike one-time burn SIM cards. This makes them perfect for testing, development, and dynamic network environments.
Why Choose HKCARD Electronics Co., Ltd.?
- Over 10 years of experience in the mobile phone SIM cards industry
- Wide range of products: Custom, blank, writable, reprogrammable, and programmable SIM cards
- Support for 4G, 5G, and IoT networks
- Compatibility with Sysmocom, pySim, and Open-Source Tools
- High-quality materials and advanced manufacturing processes
- Competitive pricing and reliable delivery
Contact Us Today
Ready to enhance your network’s performance and flexibility? Order from HKCARD Electronics Co., Ltd. and experience the difference of working with a trusted, experienced supplier in the SIM card industry.
HKCARD ELECTRONICS CO., LIMITED
📧 Email:byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp/Wechat: +8615817372512
- Top 10 Custom SIM Cards for 4G, 5G, and IoT Applications
- HKCARD: Leading Supplier of Writable and Programmable SIM Cards
- Blank SIM Cards for 4G, 5G, and IoT – Available in All Form Factors
- Reprogrammable SIM Cards Compatible with Sysmocom and pySim
- Custom 5G NR 3GPP R16 SA SIM Cards for Next-Gen Networks
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- : “HKCARD Electronics Co., Ltd. – Custom SIM Cards for 4G, 5G, and IoT”
- : “Reprogrammable SIM Cards Compatible with pySim and Open-Source Tools”
HKCARD ELECTRONICS CO., LIMITED
📧 Email:byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp/Wechat: +8615817372512
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