HID® Prox H10302 (37-Bit, No Facility Code) Compatible Cards & Fobs
The flat-numbering 37-bit format: a single 35-bit card number — over 34 billion unique values, no facility code — on the 125 kHz HID Prox platform, built for enterprises that outgrew 26-bit.
Does American Key Cards make HID Prox H10302 (37-Bit, No Facility Code) compatible cards?
Yes — American Key Cards supplies unbranded HID Prox H10302 (37-Bit, No Facility Code) compatible cards and key fobs (AKC H10302-Compatible 37-Bit Card), encoded to your facility code and card-number range and ready to use on your existing HID readers. No hardware changes and no dealer account required.
- 125 kHz
- Frequency
- 125 kHz prox
- Technology
- 1
- Bit format
- 4+
- OEM part nos.
- American Key Cards
- Order from
H10302 solves the 26-bit collision problem by brute force: it removes the facility code and gives every credential a globally unique number from a 35-bit space. Big campuses, hospital networks, and government sites picked it precisely because nobody has to coordinate facility codes across buildings — a card number is issued once, anywhere in the organization, and never repeats. The reader hardware is the same 125 kHz Prox family as 26-bit systems; only the panel's format configuration differs, which your integrator set when the system was commissioned. Ordering replacements is therefore purely sequential: tell us where your number range stands, and we program unbranded, compatible-by-specification cards and fobs that continue it. Every batch is verified against the H10302 bit structure — 35-bit number framed by two parity bits — before it ships.
HID Prox H10302 (37-Bit, No Facility Code) specifications
- System brand
- HID Global / ASSA ABLOY
- Technology
- 125 kHz Passive Proximity
- Frequency
- 125 kHz
- Credential platform
- 125 kHz low-frequency proximity platform (HID Prox line)
- Bit formats
- 37-bit Wiegand (1 parity + 35-bit card number + 1 parity, no facility-code field)
- OEM part numbers
- 1386, 1326, 1346, 1586
Specifications reviewed August 2026
Our compatible HID Prox H10302 (37-Bit, No Facility Code) credentials
American Key Cards manufactures unbranded credentials engineered to work with your existing HID readers — no hardware changes, encoded to your facility code and card-number range before they ship.
Full specifications, form factors and ordering FAQ: Standard 125 kHz proximity cards
American Key Cards is an independent manufacturer of unbranded, compatible-by-specification credentials. We are not affiliated with, endorsed by, or sponsored by HID, and we never supply OEM-branded product — for brand-original credentials, order from HID or an authorized dealer. Brand names appear only to identify compatibility, and all trademarks remain the property of their respective owners.
Where HID Prox H10302 (37-Bit, No Facility Code) is used
- Large enterprise campuses requiring unique card numbers without facility-code management
- Healthcare facilities
- Government buildings using 37-bit compatible panels
- Deployments on panels configured for 37-bit input
Works with these readers
Related formats
You might also need
HID Prox H10301 (Standard 26-Bit)
The most widely deployed proximity format in North America: 26-bit Wiegand — an 8-bit facility code plus 16-bit card number — on the 125 kHz HID Prox platform, live on millions of doors.
View compatible cardsHID Prox H10304 (37-Bit with Facility Code)
The structured 37-bit format: a 16-bit facility code (up to 65,535 sites) plus a 19-bit card number (up to 524,287 per site) on the 125 kHz HID Prox platform — 26-bit's layout, scaled for enterprises.
View compatible cardsAWID 26-Bit
A 125 kHz proximity format that outputs standard Wiegand 26-bit data — facility code 1–255, card number 1–65,535 — over AWID's own air interface, found on decades of commercial and residential installations across the U.S.
View compatible cardsHID Prox H10302 (37-Bit, No Facility Code) — FAQ
What is the difference between H10302 and H10304?
Both are 37-bit formats on the same platform, but H10302 spends all 35 data bits on one flat card number, while H10304 splits them into a 16-bit facility code plus 19-bit card number. Organizations that want structured site codes choose H10304; those that want one global number space choose H10302.
Do standard 125 kHz proximity readers support H10302?
The readers pass the data through regardless — format handling happens at the panel. If your system was commissioned on H10302, your panel is already configured for 37-bit input and compatible credentials will enroll normally. No reader changes are involved in ordering replacements.
What information do you need to program H10302 cards?
Just the card-number range — there is no facility code in this format. Your access-control software's credential report shows the highest number issued; we typically continue from there so the fleet stays collision-free.
Can compatible 37-bit cards mix with existing OEM-branded ones?
Yes. The panel sees an identical 37-bit data stream either way, so compatible and original credentials coexist on the same doors. Facilities routinely top up existing fleets with compatible stock as headcount grows.