PIX, AID(Application ID) değerinin son 4 hanesidir.
Uygulama sağlayıcısının sunulan farklı uygulamaları ayırt etmesini sağlar.
Kart şeması bazındaki PIX değerleri altta yer almaktadır:
| Kart Şeması | RID | Ürün | PIX | AID |
| Visa | A000000003 | Visa credit or debit | 1010 | A0000000031010 |
| Visa | A000000003 | Visa Electron | 2010 | A0000000032010 |
| Visa | A000000003 | V Pay | 2020 | A0000000032020 |
| MasterCard | A000000004 | MasterCard credit or debit | 1010 | A0000000041010 |
| MasterCard | A000000004 | MasterCard | 9999 | A0000000049999 |
| MasterCard | A000000004 | Maestro (debit card) | 3060 | A0000000043060 |
| MasterCard | A000000004 | Cirrus (interbank network) ATM card only | 6000 | A0000000046000 |
| MasterCard | A000000004 | Maestro UK (formerly branded as Switch) | 1 | A0000000050001 |
| American Express | A000000025 | American Express | 1 | A00000002501 |
| JCB | A000000065 | Japan Credit Bureau | 1010 | A0000000651010 |
| Diners Club/Discover | A000000152 | Diners Club/Discover | 3010 | A0000001523010 |
| Interac (Canada) | A000000277 | Debit card | 1010 | A0000002771010 |
| Discover | A000000324 | ZIP | 1010 | A0000003241010 |
| UnionPay | A000000333 | Debit | 10101 | A000000333010101 |
| UnionPay | A000000333 | Credit | 10102 | A000000333010102 |
| UnionPay | A000000333 | Quasi Credit | 10103 | A000000333010103 |
| UnionPay | A000000333 | Electronic Cash | 10106 | A000000333010106 |
| RuPay (India) | A000000524 | RuPay | 1010 | A0000005241010 |
