405-540 Prefix — Okla City, Oklahoma

Phone numbers starting with 405-540 are based in Okla City, Oklahoma, primarily served by Onvoy Spectrum, LLC.

Recently looked-up numbers in 405-540

• 405-540-4054
• 405-540-4074

More about this region

Area code 405 directory · About area code 405 · Get a OK phone number

Last updated: May 6, 2026