telephone numbering plan uses eight-digit local phone numbers (nine digits for mobile lines in some area codes from a few states), plus a two-digit area code.[1] [2] Public utility services use three-digit phone numbers, always starting with 1 .[3]
Telephone Numbering Plan
Web Site
Telephone Numbering Plan - Codes of Brazil +55 BR - Country Code for Mobile Phones and Whatsapp
Telephone Numbering Plan - Codes of Brazil +55 BR - Country Code for Mobile Phones and Whatsapp
Telephone Numbering Plan Brazil
Telephone Numbering Plan 2024 How to Dial Telephone Numbers To & From Mexico Mexperience
Keep your 573 telephone number as Missouri adds 235 area code kttn
Fifth area code coming to Houston as port city runs low on phone numbers NBC DFW
New Hampshire is finally running out of 603 area code numbers Boston.com