District of Columbia Relay

Hamilton Relay provides Telecommunications Relay Services for the District of Columbia including TTY, Voice Carry Over (VCO), Hearing Carry Over (HCO), Speech-to-Speech (STS), Spanish and CapTel®.

When you connect with District of Columbia Relay, a Communication Assistant (CA) will connect on the phone with you. Simply give the CA the number you wish to call and your call will be processed promptly, professionally and accurately.

How To Connect – Dial 711

Dial 711 to use Hamilton Relay in the District of Columbia or call one of the toll-free numbers below:

Service TypePhone Number
TTY:800-643-3768
Voice:800-643-3769
ASCII:800-898-0137
Speech-to-Speech:800-898-0740
Spanish TTY:800-546-7111
Spanish Voice:800-546-5111

If you are traveling out of State or you are in a State that is not served by Hamilton Relay, you can place interstate calls by calling:

Voice: 800-833-7833 (toll-free)

TTY: 800-833-5833 (toll-free)

News & Events

November 28, 2025