ICCID SIM swap validation

Client

SIM swap workflows fail when the new plastic serial is mistyped. Before calling the carrier or updating UEM records, paste the replacement ICCID here for local Luhn and length validation.

SIM swap checklist

Confirm new ICCID Luhn pass → confirm IMEI if handset audit required → submit swap in carrier portal → update asset record. This page covers step one only.

Privacy: digits are evaluated only inside your browser. There is no carrier, GSMA, or SM-DP+ query—format math only. Treat SIM identifiers like any sensitive operational paste.
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The ITU‑T E.118 layout follows ISO/IEC 7812 for card identifiers: a Major Industry Identifier (telecom ICCIDs usually start with 89), an issuer/country/account block, then a trailing Luhn mod‑10 check digit using the same doubling rule as many payment PAN validators. Printed cards commonly show 18–22 digits; issuers pin one length profile per range.

Result

Passes Luhn mod 10 on the full 19-digit string.

  • MII (first 2): 89
  • Issuer / account core (between MII and check): 3530012345678901
  • Check digit (last): 1

Common use cases

  • Helpdesk SIM swap tickets—validate serial before portal submission.
  • Compare old vs new ICCID format before deactivating old profile.
  • Audit swap CSVs from logistics partners.

Common mistakes to avoid

  • Validating ICCID instead of confirming swap authorization

    This page does not prove the swap is approved—format only.

  • Swapping without checking eSIM vs physical ICCID fields

    Use the identifier printed for the profile being activated.

  • Skipping batch check on multi-line swap manifests

    Paste one serial per line before upload to carrier tools.

FAQ

Does SIM swap validation contact the carrier?

No—local Luhn and MII readout only.

Can I validate both old and new ICCIDs?

Yes—paste two lines and read pass/fail per row.

eSIM swap too?

Yes—paste the eSIM profile ICCID from settings or QR payload.

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Phrases people search for that match this tool. See the full long-tail keyword index.

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