Generated Phone Number
(XXX) XXX-XXXX
Generating number...
US Phone Number Format
US phone numbers follow the format (XXX) XXX-XXXX where:
- First XXX: Area code (200-999)
- Second XXX: Prefix (200-999)
- XXXX: Line number (0000-9999)
About US Phone Numbers
US phone numbers follow the North American Numbering Plan (NANP) and are regulated by the Federal Communications Commission (FCC). Each number consists of 10 digits, organized in a specific format:
Area Codes (NPA)
- Area codes are three digits (NXX format, where N is any digit from 2-9 and X is any digit from 0-9)
- Originally assigned geographically, now also used for mobile and VoIP services
- Some well-known area codes: 212 (Manhattan), 310 (Los Angeles), 415 (San Francisco)
Mobile Numbers
- Mobile numbers use the same format as landlines: (XXX) XXX-XXXX
- Number portability allows users to keep their numbers when changing carriers
- Major carriers: AT&T, Verizon, T-Mobile
Special Numbers
- Toll-free numbers: 800, 888, 877, 866, 855, 844, 833
- Emergency: 911
- Information: 411
Important Information
- Country code: +1 (shared with Canada and other NANP countries)
- Local dialing may require 10-digit or 7-digit numbers depending on the area
- All numbers support SMS and MMS messaging
- 4G/5G services available nationwide
Major Carriers
- AT&T: America's largest telecommunications company
- Verizon: Second largest wireless carrier
- T-Mobile: Third major carrier, merged with Sprint
Common Usage Examples
- Local format: (212) 555-0123
- International format: +1 212 555 0123
- SMS format: Same as voice numbers