Email & US Phone Number Extractor

Contact Extraction Engineering and Compliance Standards

Extracting contact entities from uncurated corpora—such as customer support ticket logs, legacy spreadsheets, PDF billing invoices, and public web documents—is a recurring requirement in CRM database migration, lead generation verification, and technical auditing. Converting unstructured prose into normalized, deduplicated records requires parsing against established telecommunications and internet standards.

Standards: RFC 5322 & The North American Numbering Plan (NANP)

The extraction algorithms in this utility are calibrated to two foundational telecommunications and internet engineering standards:

Entity Type	Governing Standard	Recognized Syntax Variations	Validation Constraints
Email Address	IETF RFC 5322 (Internet Message Format)	user.name+tag@sub.domain.com	Local-part limits (64 octets), valid domain label boundaries, recognized top-level domain.
US / NANP Phone	ITU-T Recommendation E.164 / NANP Standard	(555) 019-2834, 1-800-555-0199, 212.555.0123	10-digit structure: 3-digit Area Code (NXX), 3-digit Central Office (NXX), 4-digit Line Number.

Regulatory Frameworks: CAN-SPAM Act and TCPA Compliance

In the United States, commercial communication with consumers is strictly regulated under federal law:

CAN-SPAM Act of 2003: Administered by the Federal Trade Commission (FTC), the Controlling the Assault of Non-Slicker Pornography And Marketing Act mandates truthful header information, clear identification of advertisements, valid physical postal addresses, and conspicuous opt-out mechanisms.
Telephone Consumer Protection Act (TCPA): Codified at 47 U.S.C. § 227, the TCPA strictly restricts automated telephone dialing systems (autodialers) and prerecorded voice or text messages to cellular phones without prior express written consent. Statutory penalties reach $500 to $1,500 per willful violation.

Client-Side Privacy Advantage in Contact Auditing

Pasting customer email lists or phone databases into cloud-based web tools poses grave risks under data protection laws (including the California Consumer Privacy Act / CCPA and HIPAA for medical contact directories). Because this tool executes entirely within your browser's V8 or SpiderMonkey JavaScript runtime without making server requests, sensitive contact information remains unexposed to third parties.

Frequently Asked Questions (US Standards)

Which US phone number formats does this extractor recognize?

The extractor recognizes all standard North American Numbering Plan (NANP) formats, including: (XXX) XXX-XXXX, XXX-XXX-XXXX, XXX.XXX.XXXX, 1-XXX-XXX-XXXX, +1 (XXX) XXX-XXXX, and compact 10-digit numerical strings.

How are email addresses validated and extracted?

The extractor implements an RFC 5322-compliant regular expression pattern matching local usernames (alphanumeric, plus characters, dots, underscores, hyphens) paired with valid Top-Level Domains (TLDs) such as .com, .org, .edu, .gov, and modern gTLDs.

Are extracted contacts automatically deduplicated?

Yes. The extractor normalizes emails to lowercase and removes punctuation from phone numbers before performing Set deduplication, presenting clean unique lists with initial occurrence counts.

Is my confidential contact list or CRM data uploaded to a server?

No. All regex parsing and string parsing execute entirely within your local browser memory. No client contacts, internal emails, or customer databases are ever transmitted over the internet.