# BinPulse — 100% Client-Side Card BIN/IIN & Luhn Inspector + Global E.164 Phone Carrier Auditor

> BinPulse is a zero-upload financial and telecom numbering ledger workbench running 100% inside browser memory. BinPulse resolves ISO/IEC 7812 card networks, issuing banks (90+ global & Chinese issuers plus virtual card providers like Wise, Revolut, Mercury, Airwallex, Dupay, WildCard, OneKey, Stripe Issuing), card type/tier, 3DS enrollment, and step-by-step Luhn Mod-10 checksums, alongside China Mainland 31-province HLR prefixes, MVNO/IoT risk flags, and 48-country ITU-T E.164 phone numbers while uploading 0 bytes.

## Key Capabilities & Technical Specifications
- **Card BIN / IIN & SaaS Billing Risk Inspector**: Identifies Visa, Mastercard, UnionPay, Amex, JCB, Discover, Diners Club, Mir, and RuPay issuers, distinguishing retail Credit/Debit from Prepaid/Virtual/Commercial BINs to prevent OpenAI/Claude/Stripe billing declines.
- **Visual Step-by-Step Luhn (ISO/IEC 7812-1 Mod-10) Breakdown**: Displays per-digit odd/even position doubling (`×2`), `-9` overflow adjustment, running sum, modulo 10 result, and automatic valid check-digit completion.
- **China Mainland HLR & Global E.164 Carrier Inspector**: Maps 3-digit (`130`–`199`) and 7-digit HLR prefixes to China Mobile, China Unicom, China Telecom, and China Broadnet across 31 provinces with landline area codes and postal codes, flagging `162/165/167/170/171` MVNO and `140`–`149` IoT SIMs, plus 48 international E.164 calling codes (`+1` NANP area codes, `+852`, `+81`, `+44`, `+65`, etc.).
- **Batch BIN & Phone Auditor + Luhn Sandbox Generator**: Audits up to 500 mixed card BINs and phone numbers with 1-click CSV/JSON export, and generates mathematically valid Luhn sandbox test cards for QA.
- **Edge Developer & Agent API**: Stateless JSON lookup via `GET https://bin.llmland.io/api/inspect?q=414720` or `GET https://bin.llmland.io/api/inspect?q=13800138000`.

## Canonical Entry Points
- [BinPulse Workbench (Auto-detected Locale)](https://bin.llmland.io/): Main interactive BIN, Luhn, E.164 & Batch Auditor workbench.
- [ISO/IEC 7812 & E.164 Technical Guide (FAQ)](https://bin.llmland.io/faq/): Luhn math, BIN range table, MVNO/VoIP OTP risk chart, and FAQ.
- [Simplified Chinese (简体中文)](https://bin.llmland.io/zh-Hans/) · [中文卡头与号段指南 (FAQ)](https://bin.llmland.io/zh-Hans/faq/)
- [Traditional Chinese (繁體中文)](https://bin.llmland.io/zh-Hant/) · [繁體卡頭與號段指南 (FAQ)](https://bin.llmland.io/zh-Hant/faq/)
- [English](https://bin.llmland.io/en/) · [English BIN & E.164 Guide (FAQ)](https://bin.llmland.io/en/faq/)
- [Japanese (日本語)](https://bin.llmland.io/ja/) · [日本語ガイド・FAQ](https://bin.llmland.io/ja/faq/)

## Machine-Readable Resources
- [Full Technical Specification & Multilingual Reference (llms-full.txt)](https://bin.llmland.io/llms-full.txt)
- [Edge Inspection JSON API](https://bin.llmland.io/api/inspect?q=414720)
- [XML Sitemap](https://bin.llmland.io/sitemap.xml)

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