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Mask Designer ID (MDID) Assignment

Per GS1's EPC Tag Data Standard (TDS),the TID memory bank (MB10) of an EPC/RFID chip shall contain an 8 bit ISO/IEC 15963 allocation class identifier of E2h at memory locations 00h to 07h. TID memory above location 07h of MB10 SHALL be configured as follows:

  • 08h: XTID (X) indicator (whether a Tag implements Extended Tag Identification, XTID)
  • 09h: Security (S) indicator (whether a Tag supports the Authenticate and/or Challenge commands)
  • 0Ah: File (F) indicator (whether a Tag supports the FileOpen command)
  • 0Bh to 13h: a 9-bit mask-designer identifier (MDID), available upon application to GS1
  • 14h to 1Fh: a 12-bit, Tag-manufacturer-defined Tag Model Number (TMN)
  • above 1Fh: as defined in TDS section 16.2

The following list of MDIDs is also available as a machine-readable JSON file, which includes some manufacturer-specific Tag Model Number entries.  Updated 22 April 2026

Chip manufacturer
9-bit MDID
Impinj 000000001
Texas Instruments 000000010
Alien Technology 000000011
Intelleflex 000000100
Atmel 000000101
NXP Semiconductors 000000110
ST Microelectronics 000000111
EP Microelectronics 000001000
Motorola (formerly Symbol Technologies) 000001001
Sentech Snd Bhd 000001010
EM Microelectronic 000001011
Renesas Technology Corp. 000001100
Mstar 000001101
Tyco International 000001110
Quanray Electronics 000001111
Fujitsu 000010000
LSIS 000010001
CAEN RFID srl 000010010
Productivity Engineering GmbH 000010011
Federal Electric Corp. 000010100
ON Semiconductor 000010101
Ramtron 000010110
Tego 000010111
Ceitec S.A. 000011000
CPA Wernher von Braun 000011001
TransCore 000011010
Nationz 000011011
Invengo 000011100
Kiloway 000011101
Longjing Microelectronics Co. Ltd. 000011110
Chipus Microelectronics 000011111
ORIDAO 000100000
Maintag 000100001
Yangzhou Daoyuan Microelectronics Co. Ltd 000100010
Gate Elektronik 000100011
RFMicron, Inc. 000100100
RST-Invent LLC 000100101
Crystone Technology 000100110
Shanghai Fudan Microelectronics Group 000100111
Farsens 000101000
Giesecke & Devrient GmbH 000101001
AWID 000101010
Unitec Semicondutores S/A 000101011
Q-Free ASA 000101100
Valid S.A. 000101101
Fraunhofer IPMS 000101110
ams AG 000101111
Angstrem JSC 000110000
Honeywell 000110001
Huada Semiconductor Co. Ltd (HDSC) 000110010
Lapis Technology Co., Ltd. 000110011
PJSC Mikron 000110100
Hangzhou Landa Microelectronics Co., Ltd. 000110101
Nanjing NARI Micro-Electronic Technology Co., Ltd. 000110110
Southwest Integrated Circuit Design Co., Ltd. 000110111
Silictec 000111000
Nation RFID 000111001
Asygn 000111010
Suzhou HCTech Technology Co., Ltd. 000111011
AXEM Technology 000111100
Guangzhou Syschip Technology Co., Ltd 000111101
MaxWave Microelectronics Ltd. 000111110
IDRO Co., Ltd 000111111
Shanxi Zhongshuo Microelectronics Co., Ltd. 001000000
Beijing SmartChip Microelectronics Technology Company Limited 001000001
Shanghai Yilian Internet of Things Co., Ltd. 001000010
T-Head Semiconductor Co., Ltd. 001000011
P&M Information Technology (Shenzhen) Co.,Ltd. 001000100
Brompton Technologies Pte Ltd. 001000101
Along Star Technology (Hangzhou) Co., Ltd. 001000110
3ALogics Inc. 001000111
Onecent Technology (Singapore) Pte. Ltd. 001001000
Silicon Craft Technology Public Company Limited 001001001
Huada Evercore Co.,LTD 001001010
Shanghai MintSilicon Microelectronics Inc. 001001011
Chongqing UCchip InfoTech Co., Ltd 001001100
Itag Sistemas Inteligentes Ltda. 001001101
Smardust Technology 001001110
Guangdong Shixin Microelectronics Technology Co., Ltd. 001001111
C-Star Technology Co., Ltd. 001010000
Shanghai Siproin Microeclectronics Co., Ltd. 001010001
Uniforma Limited 001010010
CRINSURANCE SAS 001010011