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BIN 223653: UNITED OVERSEAS BANK, LTD.

Issued by UNITED OVERSEAS BANK, LTD. 🇸🇬 Singapore. This page shows the BIN details and lets you generate structurally valid Mastercard test numbers from the same prefix.

Network
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Length
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CVV
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  • Luhn (MOD 10) valid
  • Up to 10,000 cards

Generated numbers are Luhn-valid test data: they have no account or balance behind them and cannot be used for real payments. Using card numbers you do not own for real purchases is fraud and illegal. For more details, visit our Terms of Service.

BIN details

BIN / IIN
223653
Network
Mastercard
Card type
Credit
Number length
16 digits
Issuer
UNITED OVERSEAS BANK, LTD.
Issuing country
🇸🇬 Singapore (SG)
Card level
B2B
Last seen in dataset
2025-02-11
Source
Open BIN dataset (binlist.io / Techbuddie Solutions, CC BY 4.0)

Example numbers from BIN 223653

These examples were generated with the Luhn algorithm. They are structurally valid but have no balance and cannot be charged.

  • 2236 5330 2632 0335
  • 2236 5396 3730 9757
  • 2236 5394 2819 3097
  • 2236 5373 4366 6940
  • 2236 5327 0377 8708

Use the generator above for a fresh set, or to create cards in bulk.

About BIN 223653

223653 is the first 6 digits of a Mastercard card number. The range is attributed to UNITED OVERSEAS BANK, LTD. in Singapore. The BIN (Bank Identification Number), formally called the IIN (Issuer Identification Number), tells payment systems which network and institution a card belongs to.

Issuer BIN ranges are reassigned over time, so always confirm critical decisions with the card network or your acquirer. Want to classify another prefix? Use the BIN checker. Looking for provider-specific test numbers? See the test card numbers reference. Need to validate a full number? Try the Luhn validator.

FAQ

Which bank issued BIN 223653?
According to the open BIN dataset, BIN 223653 is attributed to UNITED OVERSEAS BANK, LTD. in Singapore. Banks rename and BIN ranges move, so treat this as a best-effort reference.
Can I use BIN 223653 for real payments?
No. These numbers are for testing only. They have no balance and cannot be charged. Attempting real transactions with numbers you do not own is illegal.
Do the generated numbers pass Luhn validation?
Yes. Every number is generated with a valid check digit, so it passes the Luhn (MOD 10) check — exactly like a real card number would.
Will my gateway accept these numbers?
In test mode, gateways typically accept only their own documented test numbers. Generated numbers are best for validating formatting, Luhn checks, storage and UI behaviour.

Issuer and country data on this page comes from the open binlist dataset (CC BY 4.0, merged from iannuttall/binlist-data and venelinkochev/bin-list-data). The data was filtered and reformatted by namso.net. It is not an official IIN register and may lag bank renames or BIN reassignments.

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