ICCID compliance format check

Client

ICCID compliance format check supports audit trails that require evidence SIM serials follow public checksum rules before storage in GRC systems. Paste samples—local Luhn with MII readout; no substitute for carrier contract compliance.

Audit evidence scope

Record date, sample size, pass/fail counts, and remediation for failed rows. This page validates format—not carrier contract terms.

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

  • Sample inventory files during SOC or ISO telecom control reviews.
  • Demonstrate format validation step in data handling procedures.
  • Train staff on acceptable serial formats before CRM import.

Common mistakes to avoid

  • Claiming Luhn pass satisfies GDPR or PCI alone

    Compliance scope depends on your data classification policy.

  • Storing ICCID in clear text without policy

    Format check does not replace retention rules.

  • Using compliance check as KYC verification

    No subscriber identity is validated here.

FAQ

What does compliance format check prove?

Serial matches public E.118/Luhn structure—not legal assignment.

Audit log from Toolcore?

No server-side log of your paste for Luhn—document results in your GRC tool.

Can auditors use this page?

Yes—paste samples in controlled sessions; no upload required.

Common search terms

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

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