NFC Standard Reference

NFC Forum types 1–5 and ISO 14443 / 15693 standards

Reference table of NFC Forum tag types 1 through 5 with the underlying ISO/IEC 14443 and 15693 standards — protocol basis, memory size, data rate, and typical applications, plus the three NFC operating modes. It runs free in your browser on Gera Tools, with nothing uploaded.

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Which NFC tag type is used in cheap consumer stickers?

Most consumer NFC stickers are NFC Forum Type 2, based on ISO/IEC 14443 Type A chips like the NXP NTAG213, NTAG215, and NTAG216. They are inexpensive and store URLs, contact cards, or small NDEF messages.

NFC tag types and standards

Near Field Communication covers a small family of tag types defined by the NFC Forum, each layered on an existing ISO/IEC contactless standard. This reference lists Types 1 through 5 with their protocol basis, memory range, data rate, and typical uses, plus the three NFC operating modes that govern how a device interacts with tags and cards.

The five NFC Forum tag types at a glance

TypeUnderlying standardMemoryTypical speedCommon chips / uses
Type 1ISO/IEC 14443 Type A96 bytes–2 KB106 kbit/sTopaz — simple, low-cost tags; largely superseded
Type 2ISO/IEC 14443 Type A48 bytes–2 KB106 kbit/sNTAG213/215/216 — consumer stickers, URL tags
Type 3FeliCa (JIS X 6319-4)Variable, up to ~1 MB212/424 kbit/sSony FeliCa — transit cards (Suica, Octopus)
Type 4ISO/IEC 14443 Type A/BUp to 32 KB106–424 kbit/sMIFARE DESFire — access control, e-passports, payment
Type 5ISO/IEC 15693Variable26.48 kbit/sInventory, library RFID — up to ~1 m read range

How the radio layer works

All NFC operates on 13.56 MHz and powers passive tags by magnetic induction — the reader’s alternating field induces a current in the tag’s antenna coil, giving it just enough power to respond. This is why NFC tags work without a battery. The coupling is deliberate kept weak, limiting proximity NFC to roughly 4 centimetres for ISO 14443 types. ISO 15693 (Type 5) uses a stronger field and broader coupling geometry, extending range to about 1 metre at the cost of lower data rate.

The three NFC operating modes

Reader/Writer mode — the device (smartphone, terminal) reads or writes a passive NFC tag. This is how phones tap to URLs on a poster tag or write a contact card to a blank sticker.

Card Emulation mode — the device impersonates a contactless smart card. This is how Apple Pay, Google Pay, and transit cards work — the phone acts like a payment card when held near a terminal, with a secure element or HCE (Host Card Emulation) handling the cryptographic credentials.

Peer-to-Peer mode — two NFC-capable devices exchange data directly. This was used for Android Beam, but the mode is now largely deprecated in favour of Bluetooth or Wi-Fi for file transfer.

NDEF: the data format on tags

All tag types support NDEF (NFC Data Exchange Format) — a compact binary format that wraps records such as a URL (U record type), plain text (T), a vCard, or an Android Application Record. Any compliant reader, including any modern smartphone, can parse NDEF without knowing the specific tag chip. Writing a URL to an NTAG213, for example, means writing an NDEF message containing a single U record with the URL.

Choosing the right tag type

  • Consumer stickers and smart posters: Type 2 (NTAG213 for small payloads, NTAG215/216 for more data like vCards or long URLs) — cheap, widely compatible, and enough memory for almost any everyday use case.
  • Transit and high-speed reading: Type 3 (FeliCa) if targeting East Asian transit systems; otherwise Type 4.
  • Access control, e-passports, high security: Type 4 (DESFire) — supports AES encryption, mutual authentication, and large data storage.
  • Inventory and warehouse: Type 5 (ISO 15693) — longer read range so handheld readers can scan items without precise alignment.