HID Corporate 1000 (35-Bit) Compatible Cards & Fobs
HID Corporate 1000 35-bit is a managed, exclusive proximity format where HID assigns each organization a unique H5XXXX format code with a 12-bit company ID and 20-bit card number, used by enrollees prior to February 2015.
Unlike the open 26-bit standard, Corporate 1000 35-bit is a licensed program: HID controls which vendors can produce cards in your specific format code, providing a meaningful layer of supply-chain security on top of the standard 125 kHz proximity platform. American Key Cards is one of the few aftermarket suppliers able to produce Corporate 1000 compatible cards — contact us with your H5XXXX format code for a quote.
HID Corporate 1000 (35-Bit) specifications
- Brand / OEM
- HID Global / ASSA ABLOY
- Technology
- 125 kHz Passive Proximity
- Frequency
- 125 kHz
- Chip
- HID Prox
- Bit formats
- 35-bit Wiegand (3 parity bits + 12-bit company ID code + 20-bit card number). Format codes appear as H5XXXX.
- OEM part numbers
- 1386, 1326, 1346
Our compatible HID Corporate 1000 (35-Bit) credentials
American Key Cards manufactures non-OEM credentials engineered to work with your existing HID readers — no hardware changes, encoded to your facility code and card-number range.
Can HID Corporate 1000 (35-Bit) cards be copied?
HID Corporate 1000 (35-Bit) is an open format, so a compatible card can be produced from your facility code and card number. We don't copy individual cards on request — we manufacture new, correctly-encoded credentials for systems you own or manage.
Corporate 1000 35-bit is a managed, licensed format: HID assigns each enrolled organization a unique format code (H5XXXX) and controls which card suppliers may produce cards in that format, making it significantly harder to source blanks from unapproved vendors. HID guarantees no duplication of format codes across customers. Despite this managed scarcity, the underlying 125 kHz proximity technology is still physically clonable with standard RFID duplicators. Pre-February 2015 enrollees use this 35-bit variant.
Where HID Corporate 1000 (35-Bit) is used
- Enterprise corporate campuses requiring format exclusivity
- Financial institutions
- Government contractors
- Facilities that registered with the HID Corporate 1000 program before February 2015
Compatible readers
Related formats
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HID Corporate 1000 (48-Bit)
HID Corporate 1000 48-bit is HID's current managed proximity format (post-February 2015), assigning each organization a unique H2XXXXXX format code with a 22-bit company ID and 23-bit card number for over 8 million card capacity.
View compatible cardsHID Prox H10301 (Standard 26-Bit)
The HID H10301 26-bit format is the most widely deployed proximity card format in North America, used on millions of doors across commercial and residential buildings.
View compatible cardsHID iCLASS SE
HID iCLASS SE is the second-generation 13.56 MHz smart card platform, introducing Secure Identity Objects (SIOs) and AES encryption to make credential cloning technically infeasible.
View compatible cardsHID Corporate 1000 (35-Bit) — FAQ
What makes Corporate 1000 35-bit different from standard 26-bit HID cards?
Corporate 1000 35-bit uses a 12-bit company ID code and 20-bit card number in a 35-bit Wiegand frame, with three parity bits. More importantly, HID assigns each organization a unique format code (H5XXXX) and controls production, guaranteeing that no other organization gets the same format — a level of exclusivity not possible with the open 26-bit format.
How many card numbers does Corporate 1000 35-bit support?
The 20-bit card number field supports over 1,048,576 unique card numbers per assigned format, far more than the 65,535 limit of 26-bit H10301.
Can I get Corporate 1000 35-bit cards from American Key Cards?
Yes — we supply compatible Corporate 1000 35-bit cards programmed to your existing company ID code and card number range. Contact us with your format details (H5XXXX code) and we will confirm compatibility and pricing.