An optical fiber cable has a sectional area of Ac [m.sup.2] and housing a number N of optical fibers. A transmission loss .sub.dB [dB/km], a mode field diameter W [m], an effective area Aeff [m.sup.2], an effective length L.sub.eff [km], and a wavelength dispersion D [ps/nm/km] of each of the optical fibers at a wavelength of 1550 nm satisfy a predetermined equation.

An optical fiber cable has a sectional area of Ac [mm.sup.2] and housing a number N of optical fibers. A transmission loss .sub.dB [dB/km], a mode field diameter W [m], an effective area Aeff [m.sup.2], an effective length L.sub.eff [km], and a wavelength dispersion D [ps/nm/km] of each of the optical fibers at a wavelength of 1550 nm satisfy a predetermined equation and the transmission loss of the optical fiber at the wavelength of 1550 nm is 0.19 dB/km or less, and the effective area of the optical fiber is in a range from 125 to 155 m.sup.2.

An optical fiber cable has a sectional area of Ac [mm.sup.2] and housing a number N of optical fibers. A transmission loss .sub.dB [dB/km], a mode field diameter W [m], an effective area Aeff [m.sup.2], an effective length L.sub.eff [km], and a wavelength dispersion D [ps/nm/km] of each of the optical fibers at a wavelength of 1550 nm satisfy a predetermined, equation and the transmission loss of the optical fiber at the wavelength of 1550 nm is 0.19 dB/km or less, and the effective area of the optical fiber is in a range from 125 to 155 m.sup.2.

An optical fiber cable has a sectional area of Ac [mm.sup.2] and housing a number N of optical fibers. A transmission loss .sub.dB [dB/km], a mode field diameter W [m], an effective area Aeff [m.sup.2], an effective length L.sub.eff [km], and a wavelength dispersion D [ps/nm/km] of each of the optical fibers at a wavelength of 1550 nm satisfy a predetermined, equation and the transmission loss of the optical fiber at the wavelength of 1550 nm is 0.19 dB/km or less, and the effective area of the optical fiber is in a range from 125 to 155 m.sup.2.