The 973 area code covers north-central New Jersey — Newark, Morristown, Paterson, Passaic, Wayne, Parsippany, and surrounding communities. Callifi provides 973 business phone numbers with hosted VoIP, on-site installation, and local support.
The 516 area code covers Nassau County on Long Island, New York. Originally introduced in 1951 to serve all of Long Island, the code was split in 1999 when Suffolk County received the 631 area code. Today, 516 exclusively serves Nassau County — one of the most densely populated and commercially active suburban counties in the United States. For businesses in Garden City, Great Neck, Mineola, Hempstead, Freeport, Long Beach, Rockville Centre, and surrounding communities, a 516 number signals a genuine Long Island presence.
Call Callifi at (212) 423-1234 or request a quote online. We provide 516 business numbers as part of our hosted VoIP service with full phone system setup, on-site installation, and ongoing support. Porting existing 516 numbers takes 3-5 business days with zero downtime.
Callifi provides on-site installation and support throughout Nassau County. We understand Long Island businesses — from medical practices on Northern Boulevard to law offices in Garden City to retail shops in Freeport. Our technicians come to your office, set up your system, and provide same-day support when you need it. Many Nassau County businesses also want NYC numbers for Manhattan clients, and we set up multi-area-code systems on one platform.
Every 516 number includes Callifi's complete VoIP platform — unlimited calling, mobile and desktop apps, voicemail with transcription, auto-attendant, call routing, business texting, call recording, conference calling, and CRM integration. Configured by our team with on-site Long Island support.
516 covers Nassau County on Long Island, New York. Major communities include Hempstead, Garden City, Great Neck, Mineola, Freeport, Long Beach, Rockville Centre, Valley Stream, and Hicksville.
Yes. We provide on-site installation and support throughout Nassau and Suffolk counties on Long Island.
516 covers Nassau County (western Long Island, closer to NYC) and 631 covers Suffolk County (eastern Long Island). The split happened in 1999.
Yes. We port from Verizon, Optimum/Altice, Spectrum, or any other carrier. Zero downtime, 3-5 business days.
Yes. Many Long Island businesses maintain both a local 516 number and a NYC number. Callifi manages multiple area codes on one unified phone system.
