558857 BIN Check - Brazil Mastercard Debit Card
Straight runs on Steam, Epic Games Store, App Store. No 3-D Secure loops, no AVS rejections, no manual review flags.
If you have a Mastercard card from C6 Bank that starts with 558857, this page is about your card. Country of issue is Brazil, product class is Debit.
What 558857 actually is
- BIN
- 558857
- Card network
- Mastercard
- Issuing country
- Brazil
- Card type
- Debit
- Issued by
- C6 Bank
- Card form
- Virtual only
- KYC tier
- ID + proof
- 3-D Secure
- Not published
- AVS check
- No
- Billing address
- Not published
- Funding methods
- Crypto · Bank transfer
- Max cards per account
- Not published
- Issuer risk rating
- Medium
The money side
Nothing exotic in the pricing. no issuance fee, no top-up fee, and on non-USD billing, a 0.9% conversion fee. We checked these against the issuer's own pricing page, not a reseller. Resellers usually add a margin.
| Card creation fee | Free |
|---|---|
| Monthly fee | Free |
| Top-up fee | — |
| FX / conversion fee | 0.9% spread + 3.5% IOF (Global Account) |
| Declined transaction fee | — |
| Minimum top-up | — |
Cleared versus declined
Everything we pushed through this range, including the merchants it never cleared.
Merchant by merchant
| Merchant | Attempts | Cleared | Rate | What happened |
|---|---|---|---|---|
| Steam | 100 | 95 | 95% | no friction, and no AVS prompt |
| Epic Games Store | 81 | 70 | 86% | cleared first time; a second charge a week later also went through |
| App Store | 63 | 54 | 86% | went through on a fresh card with the issuer's default address |
| iHerb | 40 | 0 | 0% | AVS mismatch. The ZIP on file did not match the address registered to the card. |
| Tidal | 31 | 11 | 35% | Soft decline on the retry after an earlier failure on the same account. |
Run from a Brazil-region account between 28 Jul to 01 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
iHerb is the one to avoid. Its fraud rules appear to treat Debit ranges as high risk by default.
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.
- Tidal: 11 of 31 cleared. Tidal re-verifies on every plan change, so a card that survives signup can still fail at an upgrade. Keep the address static between changes.
Setup notes for C6 Bank
- Use the Brazil address C6 Bank gives you, verbatim. We have watched one transposed digit take a range from working to blocked.
- This range does not advertise 3-D Secure. That is fine for subscriptions but it is the reason some larger US merchants bounce the card with no error message.
- Funding is crypto-first. Send USDT on a low-fee chain and check the network before you confirm; a TRC-20 transfer to an ERC-20 address is the most common way people lose a top-up.
Final word
Two things decide it. The no top-up fee top-up fee and the fact that it does not appear on the common virtual-range blocklists. Both work in its favour. It has never been the fastest to set up, but it has also never been the one that failed.
Questions we get about 558857
What does the 558857 BIN tell a merchant?
In practice the checkout reads C6 Bank / Brazil / Debit and decides. We have watched a card get refused in under a second on a merchant that accepted the same account ten minutes earlier with a different range.
Is 558857 a real card number?
Six digits of a sixteen-digit number. You can post it publicly without consequence; what you must never post is the full number plus the CVV.
Why would 558857 be declined if the range is fine?
Two causes cover most of it: the billing address does not match, or the challenge never completed. Both look identical on screen, and both are fixable in under a minute.
Can thousands of people share the same BIN?
Yes, and it is worth internalising. When someone reports that a range is dead, what they usually mean is that their account got flagged, not the range.
What we did
We bought a C6 Bank card, funded it, and pushed 315 charges through live merchant checkout pages between 28 Jul to 01 Sep 2026. Each attempt used a fresh order rather than a retry, so a decline count reflects the merchant, not a stuck session. 230 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 04 September 2026 · 315 charges on record for this range.