United States phone number — no KYC, pay in crypto.

The United States is part of the North American Numbering Plan (NANP) and shares the country code +1 with Canada, and numerous Caribbean territories. US numbers follow the format NXX-NXX-XXXX — a 3-digit area code followed by a 7-digit subscriber number. There is no single national regulator for numbering; the FCC (Federal Communications Commission) oversees telecommunications regulation broadly. Area codes are geographically assigned, though number portability means the area code does not always indicate a current location. Major metro area codes include 212 and 917 (Manhattan), 310 and 213 (Los Angeles), 312 and 773 (Chicago), 415 (San Francisco), and 202 (Washington D.C.). The US has the world's largest app economy, and the majority of web services — from social networks to fintech apps — use a US phone number as the primary verification method. International users frequently need a US number to sign up for US-only platforms, receive SMS verifications, or establish a business line without a physical US address. Mobile and landline numbers follow the same format, making them visually indistinguishable. VoIP-aware services (such as some fintech apps) may apply additional checks; results vary by platform.

• US numbers follow the NANP format: 3-digit area code + 3-digit exchange + 4-digit subscriber number, e.g. +1 (212) 555-1234.
• Mobile and landline numbers are indistinguishable by format alone; portability means an area code does not reliably indicate geography.
• Toll-free numbers use area codes 800, 888, 877, 866, 855, and 844 and are not available as virtual incoming lines.