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ISIN check & code converter

Enter an ISIN to validate the check digit and parse country / NSIN; enter a ticker or company name to find sample ISIN and TIQEX symbol forms.

Input

Enter 11 characters (no check digit) to compute the 12th.

Validation runs entirely locally—no network requests.

Parse result

Check digit OK
US0378331005
USCountry code037833100NSIN (9 chars)5Check digit
Country / region
United States
NSIN type
CUSIP
Notes
CUSIP check digit OK (issuer 037833 · issue 10 · check 0)
Sample match
Apple Inc. · NASDAQ · Ticker AAPL · TIQEX AAPL
Show calculation
First 11 US037833100 Expanded 3028037833100 Luhn sum 45 Check digit (10 − 45 mod 10) mod 10 = 5

Sample table Sample data

TickerISINExchangeNameTIQEX symbol form
US0378331005NASDAQApple Inc.AAPL
US5949181045NASDAQMicrosoft Corp.MSFT
US88160R1014NASDAQTesla Inc.TSLA
KYG875721634HKEXTencent Holdings00700
KYG017191142HKEXAlibaba Group09988
CNE0000018R8SSEKweichow Moutai600519
CNE000000040SZSEPing An Bank000001
JP3633400001TSEToyota Motor7203
JP3435000009TSESony Group6758
US01609W1027NYSEAlibaba ADRBABA
DE0007164600XETRASAP SESAP
GB00BP6MXD84LSEShell plcSHEL
GB0007980591LSEBP p.l.c.BP
NL0010273215EuronextASML HoldingASML
CH0038863350SIXNestlé S.A.NESN
AU000000CBA7ASXCommonwealth BankCBA
INE002A01018NSEReliance IndustriesRELIANCE
KR7005930003KRXSamsung Electronics005930
TW0002330008TWSETSMC2330
US67066G1040NASDAQNVIDIA Corp.NVDA
US0231351067NASDAQAmazon.com Inc.AMZN
US02079K3059NASDAQAlphabet Inc. Class AGOOGL
US30303M1027NASDAQMeta Platforms Inc.META
US8740391003NYSETSMC ADRTSM
HK0000069689HKEXAIA Group01299
HK0388045442HKEXHong Kong Exchanges00388
CNE100003662SZSECATL300750
GB0005405286LSEHSBC HoldingsHSBA
SG1L01001701SGXDBS GroupD05
AU000000BHP4ASXBHP GroupBHP
30 common products (US, HK, CN, JP, EU, AU, IN, KR, TW) for teaching and quick checks—not an official ISIN source. Use exchange IDs and the console product list in production; ADRs and cross-listings mean one company can have multiple ISINs.

How to use

  1. ISIN structure12 chars = 2-letter country (ISO 3166) + 9-char NSIN + 1 check digit. Offshore prefixes like KY/BM are common for HK and US China ADRs.
  2. Check digitLetters expand A=10 … Z=35; from the right, double every other digit and sum; the check digit brings the sum to a multiple of 10 (Luhn).
  3. What NSIN meansUS/CA use CUSIP (this tool also checks the CUSIP digit); GB/IE often embed SEDOL; CH uses Valor; DE often embeds WKN.
  4. Valid check ≠ security existsA valid check digit only catches typos—it does not prove the security exists or has TIQEX quotes. Confirm in the console product list before calling APIs.

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