240-478 Prefix — Wshngtnzn3, Maryland

Phone numbers starting with 240-478 are based in Wshngtnzn3, Maryland, primarily served by Verizon.

Recently looked-up numbers in 240-478

• 240-478-9920

More about this region

Area code 240 directory · About area code 240 · Get a MD phone number

Last updated: October 24, 2026