631-478 Prefix — Riverhead, New York

Phone numbers starting with 631-478 are based in Riverhead, New York, primarily served by Verizon.

Recently looked-up numbers in 631-478

• 631-478-9366
• 631-478-8821

More about this region

Area code 631 directory · About area code 631 · Get a NY phone number

Last updated: June 17, 2026