HID Corporate 1000 48-Bit Card (H2XXXXXX): Buyer's Guide

HID Corporate 1000 48-bit is a managed proximity card format that HID Global assigns exclusively to organizations that enrolled in the Corporate 1000 program after February 2015. If your building uses this format, your cards carry a unique H2XXXXXX format code — and replacing them requires a supplier who can program that specific managed format, not just any 125 kHz prox card house. American Key Cards supplies compatible Corporate 1000 48-bit cards programmed to your format code; contact us with your H2XXXXXX code to confirm availability.

What Is the HID Corporate 1000 48-Bit Format?

The Corporate 1000 program is HID Global’s managed proximity format system. Instead of using the open, universally shared 26-bit Wiegand standard (H10301), Corporate 1000 assigns each enrolled organization its own unique format code. Cards issued under that code will not be read by readers programmed for a different organization’s format — in theory, eliminating cross-site card confusion across a large estate.

The 48-bit variant, identified by H2XXXXXX format codes, became the standard for new Corporate 1000 enrollees starting February 2015. Organizations that enrolled before that date received a 35-bit format (H5XXXX) — a different but related program described on our HID Corporate 1000 35-bit format page.

Technical Specifications

Parameter	HID Corporate 1000 (48-Bit)
Frequency	125 kHz
Chip	HID Prox (same platform as standard HID ProxCard II)
Bit format	48-bit Wiegand
Structure	3 parity bits + 22-bit company ID + 23-bit card number
Format code system	H2XXXXXX (seven-character code assigned by HID)
Unique card numbers per format	Over 8,388,608
OEM card part numbers	1386, 1326, 1346 (same HID body SKUs as standard prox)
Cloneable	Yes (no chip-level encryption)
Enrollment program	HID Corporate 1000 (post-February 2015)

The 22-bit company ID field is what makes each organization’s cards unique. HID guarantees no two enrolled organizations receive the same company ID, so a card from one Corporate 1000 customer cannot be enrolled in another organization’s system. The 23-bit card number field gives each format over 8 million addressable credentials — substantially more than the approximately 1 million available in the older 35-bit variant.

How to Identify Whether Your System Uses 48-Bit Corporate 1000

Several indicators point to 48-bit Corporate 1000 credentials:

On the card itself. Look for a printed format code beginning with H2 — for example, H2001234. This is the definitive identifier. The card may also carry standard HID body part numbers such as 1386LGGMN, 1326LSGMN, or 1346LSGMN with no additional labeling that distinguishes it from a standard prox card.

From your integrator or HID account records. Organizations enrolled in Corporate 1000 receive documentation of their format code. Your security integrator or HID account representative can provide this if you no longer have records.

From the reader model. The same HID Prox reader family — MaxiProx 5375, ProxPro 5355, MiniProx 5365, multiCLASS SE 940 — handles both standard 26-bit and Corporate 1000 48-bit formats. The format is a software configuration at the panel level, not a hardware distinction at the reader.

By enrollment date. If your organization enrolled in Corporate 1000 after February 2015, you almost certainly have 48-bit (H2XXXXXX) credentials. Pre-2015 enrollees use 35-bit (H5XXXX).

OEM Part Numbers and What They Tell You

HID uses the same card body part numbers across multiple formats. The 1386, 1326, and 1346 series cards are ISO-format proximity cards used for standard 26-bit H10301, Corporate 1000 35-bit, and Corporate 1000 48-bit alike. The format code printed on the card — not the part number suffix — is the reliable indicator of which programming was loaded at the factory.

Common OEM SKUs you may see on Corporate 1000 48-bit cards:

• 1386LGGMN — ISO PVC, standard credit card thickness, no hole
• 1326LSGMN — ISO PVC, slim card format
• 1346LSGMN — ISO PVC with slot punch
• 1346LGGMN — ISO PVC with no hole

These numbers describe the card body. The format code (H2XXXXXX) describes the credential programming. Both are needed when ordering replacements.

Corporate 1000 48-Bit vs. Standard 26-Bit: Is It Worth the Complexity?

For most organizations already enrolled in Corporate 1000, the question is academic — their reader infrastructure and access control software are already configured for the 48-bit format and they cannot simply switch to standard 26-bit cards. But it is worth understanding what the Corporate 1000 program actually provides versus what it does not.

What it provides: Supply-chain exclusivity. Only HID and a small number of authorized aftermarket suppliers can produce cards in your specific format. This reduces the risk that a random card vendor can produce working credentials for your site without knowing your format code.

What it does not provide: Chip-level encryption. Corporate 1000 cards operate on the same 125 kHz HID Prox chip platform as standard proximity cards. That chip carries no cryptographic protection. A person with a commercially available RFID duplicator tool and physical access to a valid card can clone it — the Corporate 1000 format does not prevent this. The format code is not a secret key embedded in the chip; it is a Wiegand bit structure that can be read and reproduced.

Organizations that need genuine clone resistance should look at HID iCLASS SE or HID Seos, both of which use AES cryptographic mutual authentication. American Key Cards does not supply iCLASS SE or Seos credentials — those require enrollment through HID’s Trusted Identity Platform — but we describe both formats honestly on their respective format pages so buyers understand the distinction.

Compatible Readers and Access Control Panels

Corporate 1000 48-bit cards work across the full HID Prox reader lineup, provided the reader has been configured at the panel level to accept 48-bit Wiegand output:

• HID MaxiProx 5375 — long-range proximity reader
• HID ProxPro 5355 — standard keypad proximity reader
• HID MiniProx 5365 — compact surface-mount proximity reader
• HID multiCLASS SE 940 — multi-technology reader (also reads iCLASS SE and Seos)
• Lenel OnGuard, Software House C•CURE 9000, Genetec Security Center panels configured for 48-bit Wiegand input

If your panel software shows 48-bit as the configured format and the existing cards work normally, compatible replacement cards programmed to the same H2XXXXXX code and the same card number range will enroll and operate identically.

How to Order Compatible HID Corporate 1000 48-Bit Cards

Because this is a managed format, ordering replacement cards requires more information than a standard 26-bit order. Here is what you will need:

1. Your H2XXXXXX format code. This is on your existing cards or in records from your HID account representative or security integrator. Without it, the cards cannot be programmed correctly.
2. The card number range. Specify which card numbers you need in the batch — for example, cards 5001 through 5050.
3. Quantity and form factor. ISO credit card format is the standard; clamshell (CR80 thickness with an outer shell) is available if your existing cards are clamshell.

American Key Cards is one of a small number of aftermarket suppliers with the programming capability for Corporate 1000 48-bit. We are not affiliated with HID Global or ASSA ABLOY — we produce compatible cards by specification. Visit our Corporate 1000 48-bit format page for current availability details, or see how the standard HID 26-bit H10301 format compares if you are evaluating a format migration.

Why Non-OEM Costs Less

HID Global distributes replacement Corporate 1000 credentials through its authorized dealer network. For many organizations, that means going through the same integrator who installed the system, which adds a distributor margin to the card cost and often requires minimum order quantities that make small replenishment orders impractical.

Compatible aftermarket cards produced to the same specification by an independent supplier — with your format code and card number range programmed in — cost less primarily because there is no multi-tier distribution markup. The card performs identically at the reader. The only thing you give up is the HID brand name on the card body, which has no functional significance at the reader or panel level.

Summary

HID Corporate 1000 48-bit is a managed 125 kHz proximity format (H2XXXXXX) used by organizations that enrolled in the program after February 2015. It provides supply-chain exclusivity through format code control, not chip-level security. Cards operate on the standard HID Prox platform and work with all HID Prox readers and enterprise panels configured for 48-bit Wiegand. Replacing them requires knowing your format code, which is printed on existing cards or available from your integrator.

To request a quote for compatible Corporate 1000 48-bit cards programmed to your format code, contact American Key Cards with your H2XXXXXX code and the card number range you need. We will confirm programming capability and turnaround before you commit to an order.