HID® Prox H10301 (Standard 26-Bit) Compatible Cards & Fobs
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.
Does American Key Cards make HID Prox H10301 (Standard 26-Bit) compatible cards?
Yes — American Key Cards supplies unbranded HID Prox H10301 (Standard 26-Bit) compatible cards and key fobs (AKC H10301-Compatible 26-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
- 6+
- OEM part nos.
- American Key Cards
- Order from
H10301 is the open, published 26-bit format that most of the American access-control industry standardized on. Its structure is public — one leading parity bit, an 8-bit facility code, a 16-bit card number, one trailing parity bit — which is exactly why so many panels, readers, and credential suppliers interoperate around it, and why a facility running HID Global readers from the 1990s can still order working credentials today. The format's ubiquity is its strength: readers are everywhere, integrators know it cold, and replacements never depend on a single source. We manufacture unbranded, compatible-by-specification H10301 credentials programmed to your facility code and card-number range and verified against the published bit structure before shipping. They enroll in your panel exactly as your existing cards do, with no reader or panel changes — order a single replacement or a facility-wide batch without a dealer account.
HID Prox H10301 (Standard 26-Bit) 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
- 26-bit Wiegand (1 parity + 8-bit facility code + 16-bit card number + 1 parity)
- OEM part numbers
- 1386, 1326, 1346, 1586, 1336, 1391
Specifications reviewed August 2026
Our compatible HID Prox H10301 (Standard 26-Bit) 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 H10301 (Standard 26-Bit) is used
- Commercial office buildings
- Multi-tenant apartment buildings
- Parking access
- Legacy commercial door access
- Schools and universities
Works with these readers
Related formats
You might also need
HID iCLASS SE
HID's second-generation AES-secured smart card and the platform most large sites migrate through — a facility-operations guide to deploying, issuing, and expanding iCLASS SE.
How it worksIndala FlexPass 26-Bit
The classic Indala credential: standard 26-bit facility-code-plus-card-number data delivered over Indala's PSK-modulated air interface — a different radio language from other 125 kHz systems, on millions of legacy doors.
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 H10301 (Standard 26-Bit) — FAQ
What is the HID Prox H10301 format?
It is the standard 26-bit Wiegand proximity layout on the 125 kHz HID Prox platform: an 8-bit facility code (1–255), a 16-bit card number (1–65,535), and two parity bits. It became the de-facto baseline format for U.S. commercial access control, so most legacy readers and panels accept it.
Will compatible H10301 cards work with my existing readers?
Yes — that is the point of compatible-by-specification manufacturing. The credential presents the same 26-bit data over the same air interface your readers already decode, so nothing about your readers, wiring, or panel changes. You enroll the new numbers just as you would OEM-branded cards.
What do I need to provide to order?
Two numbers: your facility code and the card-number range to program. Both usually appear on your existing cards or in your access-control software's credential report. If you only have a working card, clear photos of both sides are usually enough for us to confirm the format and pick up your sequence.
26-bit numbers repeat across sites — does that matter for ordering?
It can. Because the number space is small, two buildings can legitimately hold cards with the same facility code and overlapping numbers. When you order, we program the exact range you specify so you avoid collisions with credentials already enrolled — your access-control report of issued numbers is the authoritative list to work from.
Should a new installation still choose 26-bit?
New systems are usually better served by higher-capacity or secured formats, and many integrators now deploy 13.56 MHz platforms by default. But for the installed base of 26-bit systems, continuing the format is the practical, zero-disruption choice — replacement credentials keep a healthy system running for years.