421077
421077 is a Visa Debit card issued by Greylock Federal Credit Union in the United States. It is issued to an individual for personal spending, on the Classic product tier.
debit CLASSIC 
UNITED STATES 4210 77XX XXXX XXXX
Cardholder Name
John Doe
Card
- Brand
- VISA
- Type
- debit
- Category
- CLASSIC
- Spending
- Consumer
Issuer
- Country
- united states
- Phone
- +14132364000
- Website
- www.greylock.org
Other BINs from GREYLOCK FEDERAL CREDIT UNION
What does BIN 421077 tell us?
BIN 421077 belongs to the VISA network and is issued by GREYLOCK FEDERAL CREDIT UNION in UNITED STATES. This is a debit card (not prepaid).
The first 6 digits of this card number uniquely identify the issuing institution and card program. This information is used by payment processors, fraud detection systems, and merchants to route transactions and validate cards.
BIN data is public information shared across millions of cards. Knowing a BIN does not expose any personal or account information. The remaining digits are unique to each cardholder and include a check digit validated by the Luhn algorithm.
BIN 421077 FAQ
Common questions about BIN 421077 and card identification.