Numbering Resources

800-855 Line Numbers

800-855 line numbers, in the format 800-855-XXXX, are used to access Public Switched Telephone Network services for the deaf, hard of hearing, or speech impaired. Such services include Telecommunications Relay Service and Message Relay Service.

800-855 line numbers are assigned according to guidelines developed by the Industry Numbering Committee, which is sponsored by ATIS.

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