557383 BIN Check - United Kingdom Mastercard Debit Card
Strongest results on Epic Games Store, Google Play, Steam. Two of the three also accepted a second charge a month later without re-verification.
Range check: 557383, Mastercard, United Kingdom, Debit, issuer Kardpay. Below is the cost breakdown and the merchants where it held up.
557383, decoded
- BIN
- 557383
- Card network
- Mastercard
- Issuing country
- United Kingdom
- Card type
- Debit
- Issued by
- Kardpay
- Card form
- Virtual only
- KYC tier
- ID + proof
- 3-D Secure
- Yes
- AVS check
- No
- Billing address
- Global
- Funding methods
- Crypto · Bank transfer
- Max cards per account
- Multiple
- Issuer risk rating
- Medium
The fee stack
The signup cost is easy to compare and mostly irrelevant. What follows you around is no top-up fee, with no FX markup sitting behind it. Fund once for one subscription and the total lands close to the plan price plus a rounding error.
| Card creation fee | Free |
|---|---|
| Monthly fee | Free |
| Top-up fee | — |
| FX / conversion fee | — |
| Declined transaction fee | — |
| Minimum top-up | — |
The test results
Merchant by merchant, in the order we charged them. The rates below count renewals as well as first charges.
Merchant by merchant
| Merchant | Attempts | Cleared | Rate | What happened |
|---|---|---|---|---|
| Epic Games Store | 98 | 93 | 95% | first charge and renewal four weeks later both cleared |
| Google Play | 80 | 68 | 85% | cleared on the first attempt, no challenge issued |
| Steam | 61 | 53 | 87% | cleared, 3-D Secure completed in-app in under 20 seconds |
| iHerb | 40 | 0 | 0% | Gateway risk rule fired and returned a generic decline with no challenge. |
| Crunchyroll | 29 | 11 | 38% | Range blocked at the acquirer. Declined before the authorisation was even routed. |
Run from a United Kingdom-region account between 11 Jul to 05 Sep 2026, with the billing address set to the issuer default unless noted. Declines were logged with the reason the gateway returned.
Failures we could not fix
If you buy from iHerb, use something else. It declined consistently. Crunchyroll was fine on retry.
What to change before you retry
- iHerb: 0 of 40 cleared. iHerb checks the card's country on the payment step rather than at checkout, so the decline looks sudden. Fix the address first, then the range.
- Crunchyroll: 11 of 29 cleared. Billing runs monthly in USD from the account's store region. Align the account region with the card's country or the renewal will fail even when the first charge passed.
Before you try it
- This is an anonymous-account product. There is no meaningful account recovery, so export the card details and the billing address the moment you create them.
- Bank transfer is the cheap funding route here, but it is not instant. Top up a day before a renewal rather than the same morning.
- Paste the United Kingdom billing address Kardpay generates rather than typing your own. One transposed digit is enough to fail the check.
Worth it?
If your merchants are mostly in United Kingdom, 557383 is a reasonable default. If they are not, the no FX markup conversion cost will annoy you. If you find a merchant where it behaves differently, tell us and we will add it to the log.
BIN questions, answered
What does the 557383 BIN tell a merchant?
Roughly: who issued it, where, and what kind of product it is. Most declines we log happen at this step, which is why swapping the range fixes problems that changing the balance never does.
Is 557383 a real card number?
No, and this trips people up. 557383 is a range identifier shared across every card Kardpay issues in United Kingdom. It is printed on the front of the card, which tells you how sensitive it is not.
Why would 557383 be declined if the range is fine?
Of the 308 attempts behind this page, the losses broke down as address mismatch first, incomplete 3-D Secure second, and merchant-side range blocks a distant third. Only the last one is about 557383.
Can thousands of people share the same BIN?
That is the normal case. Every Debit card Kardpay issues in United Kingdom carries the same six digits. Two people on 557383 can get opposite results at the same checkout, which is why a single review is never conclusive.
How we got these numbers
We bought a Kardpay card, funded it, and pushed 308 charges through live merchant checkout pages between 11 Jul to 05 Sep 2026. Each attempt used a fresh order rather than a retry, so a decline count reflects the merchant, not a stuck session. 225 cleared.
Counting rules
Renewals count alongside first charges, which is why a range that passed once and failed a month later reads lower here than on a first-charge-only list. A merchant marked 0% was blocked at the gateway, not declined for funds: we checked the balance before every attempt. Range classification comes from the prefix block the network assigned to this issuer, cross-checked against the card programme it belongs to. Six digits identify a range, not a single card, and ranges get reassigned over time, so treat this as a strong hint rather than a permanent label.
Log through 13 Sep 2026 14:40 UTC · rate last re-checked 09 September 2026 · 308 charges on record for this range.